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\/><\/p>\n<\/section>\n<section style=\"text-align: justify;color: rgb(62, 62, 62);letter-spacing: 0.5px;\" powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2.0625em;margin-bottom: 12px;text-wrap: wrap;\">\u5728\u4e0a\u4e00\u8282\u4e2d\uff0c\u5c0f\u5e08\u59b9\u5e26\u5927\u5bb6\u5b66\u4e60\u4e86mlr3\u4e2d\u81f3\u5173\u91cd\u8981\u7684learner\u65b9\u6cd5\uff0c\u5bf9\u5e94\u673a\u5668\u5b66\u4e60\u4e2d\u7684\u4e0d\u540c\u7b97\u6cd5\uff08\u5982\u51b3\u7b56\u6811\u3001\u968f\u673a\u68ee\u6797\u3001\u652f\u6301\u5411\u91cf\u673a\u7b49\uff09\u3002\u5c0f\u4f19\u4f34\u4eec\u73b0\u5728\u5df2\u7ecf\u5b66\u4f1a\u4e86\u521b\u5efatask\u673a\u5668\u5b66\u4e60\u4efb\u52a1\uff0c\u5e76\u901a\u8fc7learner\u8fdb\u884c\u5b66\u4e60\u3001\u6570\u636e\u5206\u533a\u548c\u9884\u6d4b \uff0c\u4f46\u662f\u4e4b\u524d\u5c0f\u5e08\u59b9\u5e26\u5927\u5bb6\u4f7f\u7528\u7684\u90fd\u662f\u7b97\u6cd5\u7684\u9ed8\u8ba4\u53c2\u6570\u8fdb\u884c\u5b66\u4e60\uff0c\u4f46\u662f\u5bf9\u4e8e\u66f4\u4e3a\u7cbe\u7ec6\u7684\u673a\u5668\u5b66\u4e60\u4efb\u52a1\uff0c\u907f\u514d\u4e0d\u4e86\u8d85\u53c2\u6570\u8c03\u4f18\uff0c\u53ea\u6709\u9009\u62e9\u5408\u9002\u7684\u673a\u5668\u5b66\u4e60\u8d85\u53c2\u6570\uff0c\u624d\u80fd\u521b\u5efa\u66f4\u4e3a\u79d1\u5b66\u3001\u5408\u7406\u7684\u6a21\u578b\u3002<\/p>\n<p style=\"text-indent: 2.0625em;margin-bottom: 12px;text-wrap: wrap;\">\u673a\u5668\u5b66\u4e60\u7b97\u6cd5\u901a\u5e38\u5305\u62ec\u53c2\u6570\u548c\u8d85\u53c2\u6570\u3002\u53c2\u6570\u662f\u6a21\u578b\u7cfb\u6570\u6216\u6743\u91cd\u6216\u5176\u4ed6\u4fe1\u606f\uff0c\u7531\u5b66\u4e60\u7b97\u6cd5\u57fa\u4e8e\u8bad\u7ec3\u6570\u636e\u8fdb\u884c\u4f18\u5316\u786e\u5b9a\u3002\u76f8\u53cd\uff0c\u8d85\u53c2\u6570\u7531\u7528\u6237\u914d\u7f6e\uff0c\u5e76\u786e\u5b9a\u6a21\u578b\u5c06\u5982\u4f55\u9002\u5408\u5176\u53c2\u6570\uff0c\u5373\u6a21\u578b\u5982\u4f55\u6784\u5efa\u3002\u793a\u4f8b\u5305\u62ec\u8bbe\u7f6e\u968f\u673a\u68ee\u6797\u4e2d\u7684\u6811\u6570\u3001\u652f\u6301\u5411\u91cf\u673a\u4e2d\u7684\u60e9\u7f5a\u8bbe\u7f6e\u6216\u795e\u7ecf\u7f51\u7edc\u4e2d\u7684\u5b66\u4e60\u7387\u3002<\/p>\n<p style=\"text-indent: 2.0625em;margin-bottom: 12px;text-wrap: wrap;\">Learners\u65b9\u6cd5\u5c01\u88c5\u4e86\u673a\u5668\u5b66\u4e60\u7b97\u6cd5\u53ca\u5176\u8d85\u53c2\u6570\uff0c\u8fd9\u4e9b\u53c2\u6570\u4f1a\u5f71\u54cd\u7b97\u6cd5\u7684\u8fd0\u884c\u65b9\u5f0f\uff0c\u540c\u65f6\u53ef\u7531\u7528\u6237\u8fdb\u884c\u8bbe\u7f6e\u3002\u8d85\u53c2\u6570\u901a\u5e38\u4f1a\u5f71\u54cd\u6a21\u578b\u7684\u8bad\u7ec3\u65b9\u5f0f\u6216\u9884\u6d4b\u65b9\u5f0f\uff0c\u51b3\u5b9a\u5982\u4f55\u8bbe\u7f6e\u8d85\u53c2\u6570\u53ef\u80fd\u9700\u8981\u4e13\u4e1a\u77e5\u8bc6\u3002<\/p>\n<p><br \/><\/p>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"text-align: center;margin-top: 10px;margin-bottom: 10px;line-height: 0;\" powered-by=\"xiumi.us\">\n<section style=\"vertical-align: middle;display: inline-block;line-height: 0;\"><img decoding=\"async\" class=\"rich_pages wxw-img\" data-ratio=\"0.39537037037037037\" data-s=\"300,640\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/3_ribA8cpNnYdgvNuHqn2NLSfCtxKcXg.png?w=640\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/oCSOtP61aEWvVqOBicHvFuDE5TR9k3Dk6oib70Wjd8FjibUX4YAyHbPycnnJribA8cpNnYdgvNuHqn2NLSfCtxKcXg\/640?wx_fmt=png'\" data-type=\"png\" data-w=\"1080\" style=\"vertical-align: middle;width: 100%;\" data-recalc-dims=\"1\" \/><\/section>\n<\/section>\n<section style=\"text-align: left;justify-content: flex-start;display: flex;flex-flow: row;margin-bottom: 10px;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 100%;vertical-align: top;align-self: flex-start;flex: 0 0 auto;border-style: solid;border-width: 1px;border-color: rgb(145, 184, 175);padding: 23px;\">\n<section style=\"text-align: justify;color: rgb(62, 62, 62);letter-spacing: 0.5px;\" powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2.0625em;text-wrap: wrap;\">\u5728\u672c\u8282\u4e2d\uff0c\u5c0f\u5e08\u59b9\u5c06\u6559\u4f1a\u5927\u5bb6\u5982\u4f55\u624b\u52a8\u8c03\u6574\u8d85\u53c2\u6570\uff0c\u5e76\u5bf9\u8bbe\u5b9a\u597d\u7684\u673a\u5668\u5b66\u4e60\u6a21\u578b\u8fdb\u884c\u6027\u80fd\u8bc4\u4f30\uff0c\u5373\u5224\u65ad\u6a21\u578b\u9884\u6d4b\u7684\u8d28\u91cf\u662f\u5426\u201d\u826f\u597d\u201d\u3002\u9996\u5148\uff0c\u8ba9\u6211\u4eec\u5bfc\u5165mlr3\u5305\uff1a<\/p>\n<\/section>\n<\/section>\n<\/section>\n<section class=\"code-snippet__fix code-snippet__js\">\n<ul class=\"code-snippet__line-index code-snippet__js\">\n<li><\/li>\n<\/ul>\n<pre class=\"code-snippet__js\" data-lang=\"c\"><code><span class=\"code-snippet_outer\">library(mlr3) <\/span><\/code><\/pre>\n<\/section>\n<section style=\"text-align: center;justify-content: center;display: flex;flex-flow: row;margin-top: 20px;margin-bottom: 10px;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: auto;vertical-align: top;align-self: flex-start;flex: 0 0 auto;min-width: 5%;height: auto;background-color: rgb(236, 247, 244);padding-right: 26px;padding-left: 26px;\">\n<section style=\"text-align: left;margin-top: -10px;margin-bottom: -24px;line-height: 0;transform: translate3d(-10px, 0px, 0px);\" powered-by=\"xiumi.us\">\n<section style=\"vertical-align: middle;display: inline-block;line-height: 0;width: 54px;height: auto;\"><img decoding=\"async\" data-ratio=\"0.7305555555555555\" data-s=\"300,640\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/2_iawZINSgibFqslChOkNP2o0cE7PsPg.png?w=640\" onerror=\"this.src='\u56fe\u7247\/\u751f\u4fe1\u679c_2023-09-07_\u300c\u8f6c\u300dmlr3\u4e2d\u7684\u673a\u5668\u5b66\u4e60--\u8fdb\u5165\u751f\u7269\u4fe1\u606f\u5b66\u65b0\u65f6\u4ee3\uff083\uff09\/4_iawZINSgibFqslChOkNP2o0cE7PsPg.png\" onerror=\"this.src='\u56fe\u7247\/\u751f\u4fe1\u679c_2023-09-07_\u300c\u8f6c\u300dmlr3\u4e2d\u7684\u673a\u5668\u5b66\u4e60--\u8fdb\u5165\u751f\u7269\u4fe1\u606f\u5b66\u65b0\u65f6\u4ee3\uff083\uff09\/7_iawZINSgibFqslChOkNP2o0cE7PsPg.png\" onerror=\"this.src='\u56fe\u7247\/\u751f\u4fe1\u679c_2023-09-07_\u300c\u8f6c\u300dmlr3\u4e2d\u7684\u673a\u5668\u5b66\u4e60--\u8fdb\u5165\u751f\u7269\u4fe1\u606f\u5b66\u65b0\u65f6\u4ee3\uff083\uff09\/11_iawZINSgibFqslChOkNP2o0cE7PsPg.png\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/oCSOtP61aEWvVqOBicHvFuDE5TR9k3Dk6NOeOaeic6pGKCvrXj9H3R2TBqLmiawZINSgibFqslChOkNP2o0cE7PsPg\/640?wx_fmt=png''''\" data-type=\"png\" data-w=\"1080\" style=\"vertical-align: middle;width: 100%;\" class=\"rich_pages wxw-img\" data-recalc-dims=\"1\" \/><\/section>\n<\/section>\n<section style=\"text-align: left;justify-content: flex-start;display: flex;flex-flow: row;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;vertical-align: bottom;width: auto;min-width: 5%;flex: 0 0 auto;height: auto;align-self: flex-end;\">\n<section style=\"\" powered-by=\"xiumi.us\">\n<section style=\"text-align: justify;font-size: 38px;color: rgb(72, 101, 94);\">\n<p style=\"text-align: left;text-wrap: wrap;\"><em><strong>\u4e00<\/strong><span style=\"font-size: 20px;\">#<\/span><\/em><\/p>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: bottom;width: auto;align-self: flex-end;flex: 0 0 auto;min-width: 5%;height: auto;padding-left: 9px;\">\n<section style=\"transform: perspective(0px);transform-style: flat;\" powered-by=\"xiumi.us\">\n<section style=\"text-align: right;transform: rotateX(180deg);margin-bottom: -10px;\">\n<section style=\"display: inline-block;width: 14px;height: 14px;vertical-align: top;overflow: hidden;border-radius: 135px;background-color: rgb(247, 161, 158);\">\n<section style=\"text-align: justify;\" powered-by=\"xiumi.us\">\n<p><br \/><\/p>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"margin-bottom: -7px;\" powered-by=\"xiumi.us\">\n<section style=\"text-align: justify;font-size: 12px;color: rgb(145, 184, 175);\">\n<p style=\"text-align: left;text-wrap: wrap;\"><em>2023<\/em><\/p>\n<\/section>\n<\/section>\n<section style=\"margin-top: 8px;\" powered-by=\"xiumi.us\">\n<section style=\"background-color: rgb(145, 184, 175);height: 1px;\"><svg viewbox=\"0 0 1 1\" style=\"float:left;line-height:0;width:0;vertical-align:top;\"><\/svg><\/section>\n<\/section>\n<section style=\"margin-bottom: 10px;\" powered-by=\"xiumi.us\">\n<section style=\"text-align: justify;color: rgb(145, 184, 175);\">\n<p><strong><em><br \/><\/em><\/strong><\/p>\n<p><strong><em>\u4e00.\u8d85\u53c2\u6570\u6982\u89c8<\/em><\/strong><\/p>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"text-align: left;justify-content: flex-start;display: flex;flex-flow: row;margin-bottom: 10px;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 100%;vertical-align: top;align-self: flex-start;flex: 0 0 auto;border-style: solid;border-width: 1px;border-color: rgb(145, 184, 175);padding: 23px;\">\n<section style=\"text-align: justify;color: rgb(62, 62, 62);letter-spacing: 0.5px;\" powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2.0625em;margin-bottom: 12px;text-wrap: wrap;\">\u5728\u8fdb\u884c\u4e00\u4e2a\u6a21\u578b\u7684\u8d85\u53c2\u6570\u8bbe\u5b9a\u4e4b\u524d\uff0c\u6211\u4eec\u9700\u8981\u77e5\u9053\u6a21\u578b\u5177\u4f53\u6709\u54ea\u4e9b\u53ef\u4ee5\u8c03\u6574\u7684\u8d85\u53c2\u6570\uff0c\u8d85\u53c2\u6570\u7684\u540d\u79f0\u3001\u53c2\u6570\u7c7b\u578b\u3001\u9ed8\u8ba4\u53d6\u503c\u548c\u53c2\u6570\u7a7a\u95f4\u7b49\u3002<\/p>\n<p style=\"text-indent: 2.0625em;text-wrap: wrap;\">\u5c0f\u5e08\u59b9\u5c06\u5e26\u5927\u5bb6\u4f7f\u7528\u51b3\u7b56\u6811learner\u8fdb\u884c\u6f14\u793a\uff0c\u53ef\u4ee5\u4f7f\u7528$param_set\u6765\u8bbf\u95eelearner\u4e2d\u7684\u8d85\u53c2\u6570\uff1a<\/p>\n<\/section>\n<\/section>\n<\/section>\n<section class=\"code-snippet__fix code-snippet__js\">\n<ul class=\"code-snippet__line-index code-snippet__js\">\n<li><\/li>\n<li><\/li>\n<\/ul>\n<pre class=\"code-snippet__js\" data-lang=\"c\"><code><span class=\"code-snippet_outer\">lrn_rpart = lrn(<span class=\"code-snippet__string\">\"regr.rpart\"<\/span>) <\/span><\/code><code><span class=\"code-snippet_outer\">lrn_rpart$param_set <\/span><\/code><\/pre>\n<\/section>\n<section style=\"text-align: center;margin-top: 10px;margin-bottom: 10px;line-height: 0;\" powered-by=\"xiumi.us\">\n<section style=\"vertical-align: middle;display: inline-block;line-height: 0;\"><img decoding=\"async\" class=\"rich_pages wxw-img\" data-ratio=\"0.32061068702290074\" data-s=\"300,640\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/5_2tkh65VAbPk2VZDRze8FwNzRj9fhSg.png?w=640\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/oCSOtP61aEWvVqOBicHvFuDE5TR9k3Dk6IgqlqJno3Szw28YZCianc001S2tkh65VAbPk2VZDRze8FwNzRj9fhSg\/640?wx_fmt=png'\" data-type=\"png\" data-w=\"786\" style=\"vertical-align: middle;width: 100%;\" data-recalc-dims=\"1\" \/><\/section>\n<\/section>\n<section style=\"letter-spacing: 0.5px;\" powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2.0625em;text-wrap: wrap;\">\u8be5\u8f93\u51fa\u7684\u7b2c\u4e00\u5217(id)\u662f\u8d85\u53c2\u6570\u7684\u540d\u79f0\uff0c\u7b2c\u4e8c\u5217(class)\u662f\u8d85\u53c2\u6570\u7684\u7c7b\u578b\uff0c\u7b2c\u4e09\u5217\u7b2c\u56db\u5217(lower,upper)\u662f\u8d85\u53c2\u6570\u7684\u4e0a\u754c\u548c\u4e0b\u754c\uff0c\u7b2c\u4e94\u5217(nleverls)\u662f\u6307\u5176\u53ef\u80fd\u7684\u53d6\u503c\u6570\u91cf\uff0cInf\u4ee3\u8868\u65e0\u7a77\u591a\uff08\u5927\uff09\uff0cdefault\u662f\u8d85\u53c2\u6570\u7684\u9ed8\u8ba4\u503c\uff0cvalue\u662f\u8bbe\u5b9a\u503c\u3002<\/p>\n<\/section>\n<section style=\"text-align: center;margin-top: 10px;margin-bottom: 10px;line-height: 0;\" powered-by=\"xiumi.us\">\n<section style=\"vertical-align: middle;display: inline-block;line-height: 0;\"><img decoding=\"async\" class=\"rich_pages wxw-img\" data-ratio=\"0.2462962962962963\" data-s=\"300,640\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/6_uYMoPgDwKP6vjpaqO4smcGN5Zial9g.png?w=640\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/oCSOtP61aEWvVqOBicHvFuDE5TR9k3Dk6v31JUBk7zotgglFnPIQJOv6vCuYMoPgDwKP6vjpaqO4smcGN5Zial9g\/640?wx_fmt=png'\" data-type=\"png\" data-w=\"1080\" style=\"vertical-align: middle;width: 100%;\" data-recalc-dims=\"1\" \/><\/section>\n<\/section>\n<section style=\"text-align: left;justify-content: flex-start;display: flex;flex-flow: row;margin-bottom: 10px;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 100%;vertical-align: top;align-self: flex-start;flex: 0 0 auto;border-style: solid;border-width: 1px;border-color: rgb(145, 184, 175);padding: 23px;\">\n<section style=\"text-align: justify;color: rgb(62, 62, 62);letter-spacing: 0.5px;\" powered-by=\"xiumi.us\">\n<p>\u4ece\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u4ece\u8f93\u51fa\u4e2d\u6211\u4eec\u53ef\u4ee5\u5224\u65ad\uff1a<\/p>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"letter-spacing: 0.5px;\" powered-by=\"xiumi.us\">\n<ul style=\"list-style-type: \uf06c;padding-left: 40px;list-style-position: outside;\" class=\"list-paddingleft-1\">\n<li>\n<p>cp\u662f\u53cc\u7cbe\u5ea6\u5b9e\u6570\uff0c\u53d6\u503c\u4ecb\u4e8e(0,1),\u9ed8\u8ba4\u503c\u4e3a0.01<\/p>\n<\/li>\n<li>\n<p>keep_model\u662f\u5e03\u5c14\u53d8\u91cf\uff0c\u5176\u9ed8\u8ba4\u503c\u4e3aFALSE\uff080\uff09<\/p>\n<\/li>\n<li>\n<p>xval\u662f\u6574\u6570\u53d8\u91cf\uff0c\u53d6\u503c\u4ecb\u4e8e,\u9ed8\u8ba4\u503c\u4e3a10<\/p>\n<\/li>\n<li>\n<p>\u2026\u2026<\/p>\n<\/li>\n<\/ul>\n<\/section>\n<section style=\"text-align: center;justify-content: center;display: flex;flex-flow: row;margin-top: 20px;margin-bottom: 10px;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: auto;vertical-align: top;align-self: flex-start;flex: 0 0 auto;min-width: 5%;height: auto;background-color: rgb(236, 247, 244);padding-right: 26px;padding-left: 26px;\">\n<section style=\"text-align: left;margin-top: -10px;margin-bottom: -24px;line-height: 0;transform: translate3d(-10px, 0px, 0px);\" powered-by=\"xiumi.us\">\n<section style=\"vertical-align: middle;display: inline-block;line-height: 0;width: 54px;height: auto;\"><img decoding=\"async\" data-ratio=\"0.7305555555555555\" data-s=\"300,640\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/2_iawZINSgibFqslChOkNP2o0cE7PsPg.png?w=640\" onerror=\"this.src='\u56fe\u7247\/\u751f\u4fe1\u679c_2023-09-07_\u300c\u8f6c\u300dmlr3\u4e2d\u7684\u673a\u5668\u5b66\u4e60--\u8fdb\u5165\u751f\u7269\u4fe1\u606f\u5b66\u65b0\u65f6\u4ee3\uff083\uff09\/4_iawZINSgibFqslChOkNP2o0cE7PsPg.png\" onerror=\"this.src='\u56fe\u7247\/\u751f\u4fe1\u679c_2023-09-07_\u300c\u8f6c\u300dmlr3\u4e2d\u7684\u673a\u5668\u5b66\u4e60--\u8fdb\u5165\u751f\u7269\u4fe1\u606f\u5b66\u65b0\u65f6\u4ee3\uff083\uff09\/7_iawZINSgibFqslChOkNP2o0cE7PsPg.png\" onerror=\"this.src='\u56fe\u7247\/\u751f\u4fe1\u679c_2023-09-07_\u300c\u8f6c\u300dmlr3\u4e2d\u7684\u673a\u5668\u5b66\u4e60--\u8fdb\u5165\u751f\u7269\u4fe1\u606f\u5b66\u65b0\u65f6\u4ee3\uff083\uff09\/11_iawZINSgibFqslChOkNP2o0cE7PsPg.png\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/oCSOtP61aEWvVqOBicHvFuDE5TR9k3Dk6NOeOaeic6pGKCvrXj9H3R2TBqLmiawZINSgibFqslChOkNP2o0cE7PsPg\/640?wx_fmt=png''''\" data-type=\"png\" data-w=\"1080\" style=\"vertical-align: middle;width: 100%;\" data-recalc-dims=\"1\" \/><\/section>\n<\/section>\n<section style=\"text-align: left;justify-content: flex-start;display: flex;flex-flow: row;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;vertical-align: bottom;width: auto;min-width: 5%;flex: 0 0 auto;height: auto;align-self: flex-end;\">\n<section style=\"\" powered-by=\"xiumi.us\">\n<section style=\"text-align: justify;font-size: 38px;color: rgb(72, 101, 94);\">\n<p style=\"text-align: left;text-wrap: wrap;\"><em><strong>\u4e8c<\/strong><span style=\"font-size: 20px;\">#<\/span><\/em><\/p>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: bottom;width: auto;align-self: flex-end;flex: 0 0 auto;min-width: 5%;height: auto;padding-left: 9px;\">\n<section style=\"transform: perspective(0px);transform-style: flat;\" powered-by=\"xiumi.us\">\n<section style=\"text-align: right;transform: rotateX(180deg);margin-bottom: -10px;\">\n<section style=\"display: inline-block;width: 14px;height: 14px;vertical-align: top;overflow: hidden;border-radius: 135px;background-color: rgb(247, 161, 158);\">\n<section style=\"text-align: justify;\" powered-by=\"xiumi.us\">\n<p><br \/><\/p>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"margin-bottom: -7px;\" powered-by=\"xiumi.us\">\n<section style=\"text-align: justify;font-size: 12px;color: rgb(145, 184, 175);\">\n<p style=\"text-align: left;text-wrap: wrap;\"><em>2023<\/em><\/p>\n<\/section>\n<\/section>\n<section style=\"margin-top: 8px;\" powered-by=\"xiumi.us\">\n<section style=\"background-color: rgb(145, 184, 175);height: 1px;\"><svg viewbox=\"0 0 1 1\" style=\"float:left;line-height:0;width:0;vertical-align:top;\"><\/svg><\/section>\n<\/section>\n<section style=\"margin-bottom: 10px;\" powered-by=\"xiumi.us\">\n<section style=\"text-align: justify;color: rgb(145, 184, 175);\">\n<p><strong><em>\u83b7\u53d6\u548c\u8bbe\u7f6e\u8d85\u53c2\u6570<\/em><\/strong><\/p>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"text-align: left;justify-content: flex-start;display: flex;flex-flow: row;margin-bottom: 10px;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 100%;vertical-align: top;align-self: flex-start;flex: 0 0 auto;border-style: solid;border-width: 1px;border-color: rgb(145, 184, 175);padding: 23px;\">\n<section style=\"text-align: justify;color: rgb(62, 62, 62);letter-spacing: 0.5px;\" powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2.0625em;margin-bottom: 12px;text-wrap: wrap;\">\u7ecf\u8fc7\u4e0a\u9762\u7684\u8bb2\u89e3\uff0c\u5c0f\u4f19\u4f34\u4eec\u6709\u6ca1\u6709\u660e\u767d\u8d85\u53c2\u6570\u503c\u662f\u5982\u4f55\u5b58\u50a8\u7684\u5462\uff1f\u73b0\u5728\uff0c\u6211\u4eec\u8981\u8003\u8651\u5982\u4f55\u83b7\u53d6\u5e76\u8bbe\u7f6e\u5b83\u4eec\u3002\u4f8b\u5982\u6211\u4eec\u7684\u51b3\u7b56\u6811\u6a21\u578b\uff0c\u5047\u8bbe\u6211\u4eec\u73b0\u5728\u60f3\u8981\u521b\u5efa\u4e00\u4e2a\u6709\u6df1\u5ea6\u7684\u6811\uff0c\u5176\u4e2d\u6570\u636e\u4ec5\u88ab\u62c6\u5206\u6210\u4e3a\u4e24\u4e2a\u7ec8\u7aef\u8282\u70b9\u4e00\u6b21\u3002<\/p>\n<p style=\"text-indent: 2.0625em;text-wrap: wrap;\">\u4e0b\u9762\u7684\u51e0\u79cd\u65b9\u6cd5\u53ef\u4ee5\u66f4\u6539\u8be5\u8d85\u53c2\u6570\uff1a<\/p>\n<\/section>\n<\/section>\n<\/section>\n<section class=\"code-snippet__fix code-snippet__js\">\n<ul class=\"code-snippet__line-index code-snippet__js\">\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<\/ul>\n<pre class=\"code-snippet__js\" data-lang=\"c\"><code><span class=\"code-snippet_outer\">#\u66f4\u6539\u8d85\u53c2\u6570 <\/span><\/code><code><span class=\"code-snippet_outer\">#<span class=\"code-snippet__number\">1<\/span>\u901a\u8fc7learner\u65b9\u6cd5\u4fee\u6539 <\/span><\/code><code><span class=\"code-snippet_outer\">lrn_rpart = lrn(<span class=\"code-snippet__string\">\"regr.rpart\"<\/span>, maxdepth = <span class=\"code-snippet__number\">3<\/span>, xval = <span class=\"code-snippet__number\">1<\/span>) <\/span><\/code><code><span class=\"code-snippet_outer\">lrn_rpart$param_set$values <\/span><\/code><code><span class=\"code-snippet_outer\">lrn_rpart$train(tsk(<span class=\"code-snippet__string\">\"mtcars\"<\/span>))$model <\/span><\/code><code><span class=\"code-snippet_outer\">#<span class=\"code-snippet__number\">2<\/span>\u66f4\u65b0\u5217\u8868 <\/span><\/code><code><span class=\"code-snippet_outer\">lrn_rpart$param_set$values$maxdepth = <span class=\"code-snippet__number\">2<\/span> <\/span><\/code><code><span class=\"code-snippet_outer\">lrn_rpart$param_set$values <\/span><\/code><code><span class=\"code-snippet_outer\">lrn_rpart$train(tsk(<span class=\"code-snippet__string\">\"mtcars\"<\/span>))$model <\/span><\/code><code><span class=\"code-snippet_outer\">#<span class=\"code-snippet__number\">3<\/span>set_values\u51fd\u6570 <\/span><\/code><code><span class=\"code-snippet_outer\">lrn_rpart$param_set$set_values(xval = <span class=\"code-snippet__number\">2<\/span>, cp = <span class=\"code-snippet__number\">0.5<\/span>) <\/span><\/code><code><span class=\"code-snippet_outer\">lrn_rpart$param_set$values <\/span><\/code><\/pre>\n<\/section>\n<section style=\"text-align: left;justify-content: flex-start;display: flex;flex-flow: row;margin-bottom: 10px;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 100%;vertical-align: top;align-self: flex-start;flex: 0 0 auto;border-style: solid;border-width: 1px;border-color: rgb(145, 184, 175);padding: 23px;\">\n<section style=\"text-align: justify;color: rgb(62, 62, 62);letter-spacing: 0.5px;\" powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2.0625em;text-wrap: wrap;\">\u5176\u4e2d\uff0c\u7b2c\u4e00\u79cd\u65b9\u6cd5\uff0c\u901a\u8fc7\u5728lrn()\u51fd\u6570\u4e2d\u8bbe\u5b9a\u8d85\u53c2\u6570\u7684\u53d6\u503c\uff0c\u53ef\u4ee5\u66f4\u6539\u8d85\u53c2\u6570\uff1b\u5728\u7b2c\u4e8c\u79cd\u65b9\u6cd5\u4e2d\uff0c\u6211\u4eec\u901a\u8fc7\u83b7\u53d6param_set\u5217\u8868\u4e2d\u7684values\uff0c\u8bbe\u5b9amaxdepth=2\uff1b\u5728\u7b2c\u4e09\u79cd\u65b9\u6cd5\u4e2d\uff0c\u901a\u8fc7param_set\u4e2d\u7684set_values\uff08\uff09\u51fd\u6570\uff0c\u53ef\u4ee5\u66f4\u6539\u591a\u4e2a\u8d85\u53c2\u6570\u3002<\/p>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"text-align: center;margin-top: 10px;margin-bottom: 10px;line-height: 0;\" powered-by=\"xiumi.us\">\n<section style=\"vertical-align: middle;display: inline-block;line-height: 0;\"><img decoding=\"async\" class=\"rich_pages wxw-img\" data-ratio=\"0.7647058823529411\" data-s=\"300,640\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/8_EyplgLLQXfnoVEwM5ALDWJhV1bicfA.png?w=640\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/oCSOtP61aEWvVqOBicHvFuDE5TR9k3Dk6SleyQ8tj9K9K4wFpc1JYQ6RG1EyplgLLQXfnoVEwM5ALDWJhV1bicfA\/640?wx_fmt=png'\" data-type=\"png\" data-w=\"459\" style=\"vertical-align: middle;width: 100%;\" data-recalc-dims=\"1\" \/><\/section>\n<\/section>\n<section style=\"text-align: center;margin-top: 10px;margin-bottom: 10px;line-height: 0;\" powered-by=\"xiumi.us\">\n<section style=\"vertical-align: middle;display: inline-block;line-height: 0;\"><img decoding=\"async\" class=\"rich_pages wxw-img\" data-ratio=\"0.7025440313111546\" data-s=\"300,640\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/9_3RYyANXkMFHLehmmqOwkicPyjRic5A.png?w=640\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/oCSOtP61aEWvVqOBicHvFuDE5TR9k3Dk6fPhynibmibloPR1Mia02ffcuCa2dd3RYyANXkMFHLehmmqOwkicPyjRic5A\/640?wx_fmt=png'\" data-type=\"png\" data-w=\"511\" style=\"vertical-align: middle;width: 100%;\" data-recalc-dims=\"1\" \/><\/section>\n<\/section>\n<section style=\"text-align: center;margin-top: 10px;margin-bottom: 10px;line-height: 0;\" powered-by=\"xiumi.us\">\n<section style=\"vertical-align: middle;display: inline-block;line-height: 0;\"><img decoding=\"async\" class=\"rich_pages wxw-img\" data-ratio=\"0.6589785831960461\" data-s=\"300,640\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/10_2Eb4EhwxnHGBwuTx43LIf11cBpsanw.png?w=640\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/oCSOtP61aEWvVqOBicHvFuDE5TR9k3Dk6pXKybs2lAm7fKjXEbjhm9H1D2Eb4EhwxnHGBwuTx43LIf11cBpsanw\/640?wx_fmt=png'\" data-type=\"png\" data-w=\"607\" style=\"vertical-align: middle;width: 100%;\" data-recalc-dims=\"1\" \/><\/section>\n<\/section>\n<section style=\"text-align: left;justify-content: flex-start;display: flex;flex-flow: row;margin-bottom: 10px;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 100%;vertical-align: top;align-self: flex-start;flex: 0 0 auto;border-style: solid;border-width: 1px;border-color: rgb(145, 184, 175);padding: 23px;\">\n<section style=\"text-align: justify;color: rgb(62, 62, 62);letter-spacing: 0.5px;\" powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2.0625em;text-wrap: wrap;\">\u5728learner\u4e2d\uff0c\u5b58\u5728\u4e00\u79cd\u5df2\u7ecf\u8bbe\u5b9a\u597d\u8d85\u53c2\u6570\u7684\u6a21\u578b\uff0c\u867d\u7136\u8fd9\u79cd\u6a21\u578b\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u901a\u5e38\u4e0d\u4f1a\u53bb\u9009\u62e9\uff0c\u4f46\u5728\u6574\u4e2a\u5efa\u6a21\u7684\u8fc7\u7a0b\u4e2d\u5177\u6709\u91cd\u8981\u7684\u610f\u4e49\u3002\u6211\u4eec\u53eb\u5b83\u57fa\u7ebf\u5b66\u4e60\u8005\uff0c\u57fa\u7ebf\u5b66\u4e60\u8005\u5728\u6a21\u578b\u6bd4\u8f83\u7b49\u6b65\u9aa4\u4e2d\u5177\u6709\u91cd\u8981\u7684\u610f\u4e49\u3002<\/p>\n<\/section>\n<\/section>\n<\/section>\n<section class=\"code-snippet__fix code-snippet__js\">\n<ul class=\"code-snippet__line-index code-snippet__js\">\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<\/ul>\n<pre class=\"code-snippet__js\" data-lang=\"c\"><code><span class=\"code-snippet_outer\">df = as_task_regr(data.frame(x = runif(<span class=\"code-snippet__number\">1000<\/span>), y = rnorm(<span class=\"code-snippet__number\">1000<\/span>, <span class=\"code-snippet__number\">2<\/span>, <span class=\"code-snippet__number\">1<\/span>)), <\/span><\/code><code><span class=\"code-snippet_outer\"> target = <span class=\"code-snippet__string\">\"y\"<\/span>)#\u751f\u6210data <\/span><\/code><code><span class=\"code-snippet_outer\">lrn(<span class=\"code-snippet__string\">\"regr.featureless\"<\/span>)$train(df, <span class=\"code-snippet__number\">1<\/span>:<span class=\"code-snippet__number\">995<\/span>)$predict(df, <span class=\"code-snippet__number\">996<\/span>:<span class=\"code-snippet__number\">1000<\/span>) <\/span><\/code><\/pre>\n<\/section>\n<section style=\"text-align: left;justify-content: flex-start;display: flex;flex-flow: row;margin-bottom: 10px;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 100%;vertical-align: top;align-self: flex-start;flex: 0 0 auto;border-style: solid;border-width: 1px;border-color: rgb(145, 184, 175);padding: 23px;\">\n<section style=\"text-align: justify;color: rgb(62, 62, 62);letter-spacing: 0.5px;\" powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2.0625em;text-wrap: wrap;\">\u4e00\u822c\u6765\u8bf4\uff0c\u6027\u80fd\u6bd4\u57fa\u7ebf\u5b66\u4e60\u8005\u5dee\u7684\uff0c\u6211\u4eec\u8ba4\u4e3a\u662f\u574f\u7684\u6a21\u578b\uff0c\u53e6\u4e00\u65b9\u9762\uff0c\u6027\u80fd\u6bd4\u57fa\u7ebf\u5b66\u4e60\u8005\u597d\u7684\uff0c\u4e0d\u4e00\u5b9a\u662f\u597d\u7684\u6a21\u578b\u3002<\/p>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"text-align: center;justify-content: center;display: flex;flex-flow: row;margin-top: 20px;margin-bottom: 10px;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: auto;vertical-align: top;align-self: flex-start;flex: 0 0 auto;min-width: 5%;height: auto;background-color: rgb(236, 247, 244);padding-right: 26px;padding-left: 26px;\">\n<section style=\"text-align: left;margin-top: -10px;margin-bottom: -24px;line-height: 0;transform: translate3d(-10px, 0px, 0px);\" powered-by=\"xiumi.us\">\n<section style=\"vertical-align: middle;display: inline-block;line-height: 0;width: 54px;height: auto;\"><img decoding=\"async\" data-ratio=\"0.7305555555555555\" data-s=\"300,640\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/2_iawZINSgibFqslChOkNP2o0cE7PsPg.png?w=640\" onerror=\"this.src='\u56fe\u7247\/\u751f\u4fe1\u679c_2023-09-07_\u300c\u8f6c\u300dmlr3\u4e2d\u7684\u673a\u5668\u5b66\u4e60--\u8fdb\u5165\u751f\u7269\u4fe1\u606f\u5b66\u65b0\u65f6\u4ee3\uff083\uff09\/4_iawZINSgibFqslChOkNP2o0cE7PsPg.png\" onerror=\"this.src='\u56fe\u7247\/\u751f\u4fe1\u679c_2023-09-07_\u300c\u8f6c\u300dmlr3\u4e2d\u7684\u673a\u5668\u5b66\u4e60--\u8fdb\u5165\u751f\u7269\u4fe1\u606f\u5b66\u65b0\u65f6\u4ee3\uff083\uff09\/7_iawZINSgibFqslChOkNP2o0cE7PsPg.png\" onerror=\"this.src='\u56fe\u7247\/\u751f\u4fe1\u679c_2023-09-07_\u300c\u8f6c\u300dmlr3\u4e2d\u7684\u673a\u5668\u5b66\u4e60--\u8fdb\u5165\u751f\u7269\u4fe1\u606f\u5b66\u65b0\u65f6\u4ee3\uff083\uff09\/11_iawZINSgibFqslChOkNP2o0cE7PsPg.png\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/oCSOtP61aEWvVqOBicHvFuDE5TR9k3Dk6NOeOaeic6pGKCvrXj9H3R2TBqLmiawZINSgibFqslChOkNP2o0cE7PsPg\/640?wx_fmt=png''''\" data-type=\"png\" data-w=\"1080\" style=\"vertical-align: middle;width: 100%;\" data-recalc-dims=\"1\" \/><\/section>\n<\/section>\n<section style=\"text-align: left;justify-content: flex-start;display: flex;flex-flow: row;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;vertical-align: bottom;width: auto;min-width: 5%;flex: 0 0 auto;height: auto;align-self: flex-end;\">\n<section style=\"\" powered-by=\"xiumi.us\">\n<section style=\"text-align: justify;font-size: 38px;color: rgb(72, 101, 94);\">\n<p style=\"text-align: left;text-wrap: wrap;\"><strong><em>\u4e09<\/em><\/strong><em><span style=\"font-size: 20px;\">#<\/span><\/em><\/p>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: bottom;width: auto;align-self: flex-end;flex: 0 0 auto;min-width: 5%;height: auto;padding-left: 9px;\">\n<section style=\"transform: perspective(0px);transform-style: flat;\" powered-by=\"xiumi.us\">\n<section style=\"text-align: right;transform: rotateX(180deg);margin-bottom: -10px;\">\n<section style=\"display: inline-block;width: 14px;height: 14px;vertical-align: top;overflow: hidden;border-radius: 135px;background-color: rgb(247, 161, 158);\">\n<section style=\"text-align: justify;\" powered-by=\"xiumi.us\">\n<p><br \/><\/p>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"margin-bottom: -7px;\" powered-by=\"xiumi.us\">\n<section style=\"text-align: justify;font-size: 12px;color: rgb(145, 184, 175);\">\n<p style=\"text-align: left;text-wrap: wrap;\"><em>2023<\/em><\/p>\n<\/section>\n<\/section>\n<section style=\"margin-top: 8px;\" powered-by=\"xiumi.us\">\n<section style=\"background-color: rgb(145, 184, 175);height: 1px;\"><svg viewbox=\"0 0 1 1\" style=\"float:left;line-height:0;width:0;vertical-align:top;\"><\/svg><\/section>\n<\/section>\n<section style=\"margin-bottom: 10px;\" powered-by=\"xiumi.us\">\n<section style=\"text-align: justify;color: rgb(145, 184, 175);\">\n<p><strong><em>\u6a21\u578b\u7684\u8bc4\u4ef7<\/em><\/strong><\/p>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"text-align: left;justify-content: flex-start;display: flex;flex-flow: row;margin-bottom: 10px;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 100%;vertical-align: top;align-self: flex-start;flex: 0 0 auto;border-style: solid;border-width: 1px;border-color: rgb(145, 184, 175);padding: 23px;\">\n<section style=\"text-align: justify;color: rgb(62, 62, 62);letter-spacing: 0.5px;\" powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2.0625em;text-wrap: wrap;\">\u5728\u6574\u4e2a\u673a\u5668\u5b66\u4e60\u5de5\u4f5c\u7684\u6d41\u7a0b\u4e2d\uff0c\u6700\u91cd\u8981\u7684\u6b65\u9aa4\u53ef\u80fd\u662f\u6a21\u578b\u7684\u6027\u80fd\u8bc4\u4f30\u3002\u6ca1\u6709\u6027\u80fd\u7684\u8bc4\u4f30\uff0c\u6211\u4eec\u5c06\u65e0\u6cd5\u77e5\u9053\u6240\u8bad\u7ec3\u7684\u6a21\u578b\u662f\u5426\u8fdb\u884c\u4e86\u7cbe\u51c6\u7684\u9884\u6d4b\uff0c\u8fd8\u662f\u6bd4\u968f\u673a\u731c\u6d4b\u66f4\u4e3a\u7cdf\u7cd5\uff0c\u6216\u8005\u4ecb\u4e8e\u4e24\u8005\u4e4b\u95f4\u3002\u5728\u4e0b\u9762\u7684\u4f8b\u5b50\u4e2d\uff0c\u5c0f\u5e08\u59b9\u4ecd\u5c06\u4f7f\u7528\u51b3\u7b56\u6811\u6a21\u578b\u6765\u786e\u5b9a\u9884\u6d4b\u7684\u8d28\u91cf\u662f\u5426\u201c\u826f\u597d\u201d\uff0c\u8fdb\u800c\u5bf9\u6a21\u578b\u7ed9\u51fa\u76f8\u5e94\u7684\u8bc4\u4ef7\u3002<\/p>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"text-align: center;margin-top: 10px;margin-bottom: 10px;line-height: 0;\" powered-by=\"xiumi.us\">\n<section style=\"vertical-align: middle;display: inline-block;line-height: 0;\"><img decoding=\"async\" class=\"rich_pages wxw-img\" data-ratio=\"0.5487944890929966\" data-s=\"300,640\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/12_CNS3TCOdj1eBYHevyibbha8Wl6ibAA.png?w=640\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/oCSOtP61aEWvVqOBicHvFuDE5TR9k3Dk68DqaPrV04QCrMibchAQkibpaUl1ICNS3TCOdj1eBYHevyibbha8Wl6ibAA\/640?wx_fmt=png'\" data-type=\"png\" data-w=\"871\" style=\"vertical-align: middle;width: 100%;\" data-recalc-dims=\"1\" \/><\/section>\n<\/section>\n<section class=\"code-snippet__fix code-snippet__js\">\n<ul class=\"code-snippet__line-index code-snippet__js\">\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<\/ul>\n<pre class=\"code-snippet__js\" data-lang=\"c\"><code><span class=\"code-snippet_outer\">#\u6a21\u578b\u8bc4\u4ef7 <\/span><\/code><code><span class=\"code-snippet_outer\">lrn_rpart = lrn(<span class=\"code-snippet__string\">\"regr.rpart\"<\/span>) <\/span><\/code><code><span class=\"code-snippet_outer\">tsk_mtcars = tsk(<span class=\"code-snippet__string\">\"mtcars\"<\/span>) <\/span><\/code><code><span class=\"code-snippet_outer\">splits = partition(tsk_mtcars) <\/span><\/code><code><span class=\"code-snippet_outer\">lrn_rpart$train(tsk_mtcars, splits$train) <\/span><\/code><code><span class=\"code-snippet_outer\">prediction = lrn_rpart$predict(tsk_mtcars, splits$test) <\/span><\/code><\/pre>\n<\/section>\n<section style=\"text-align: left;justify-content: flex-start;display: flex;flex-flow: row;margin-bottom: 10px;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 100%;vertical-align: top;align-self: flex-start;flex: 0 0 auto;border-style: solid;border-width: 1px;border-color: rgb(145, 184, 175);padding: 23px;\">\n<section style=\"text-align: justify;color: rgb(62, 62, 62);letter-spacing: 0.5px;\" powered-by=\"xiumi.us\">\n<p>\u8bc4\u4ef7\u7684\u51c6\u5219\u901a\u5e38\u6709\u4ee5\u4e0b\u51e0\u79cd\uff1a<\/p>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"text-align: center;margin-top: 10px;margin-bottom: 10px;line-height: 0;\" powered-by=\"xiumi.us\">\n<section style=\"vertical-align: middle;display: inline-block;line-height: 0;\"><img decoding=\"async\" class=\"rich_pages wxw-img\" data-ratio=\"0.587037037037037\" data-s=\"300,640\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/13_Rkpz8blFuRKNMGSf5vvUibX9PibcRw.png?w=640\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/oCSOtP61aEWvVqOBicHvFuDE5TR9k3Dk61ZgDCGe5Dic9WJljSTgM2YDChRwRkpz8blFuRKNMGSf5vvUibX9PibcRw\/640?wx_fmt=png'\" data-type=\"png\" data-w=\"1080\" style=\"vertical-align: middle;width: 100%;\" data-recalc-dims=\"1\" \/><\/section>\n<\/section>\n<section style=\"text-align: left;justify-content: flex-start;display: flex;flex-flow: row;margin-bottom: 10px;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 100%;vertical-align: top;align-self: flex-start;flex: 0 0 auto;border-style: solid;border-width: 1px;border-color: rgb(145, 184, 175);padding: 23px;\">\n<section style=\"text-align: justify;color: rgb(62, 62, 62);letter-spacing: 0.5px;\" powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2.0625em;margin-bottom: 12px;text-wrap: wrap;\">\u5176\u4e2d\uff0c\u5e38\u89c1\u7684aic\u3001bic\u76f8\u4fe1\u5927\u5bb6\u90fd\u6709\u6240\u8033\u95fb\uff0c\u5b9e\u65bd\u7684\u6240\u6709\u63aa\u65bd\u4e3b\u8981\u7531\u4e09\u4e2a\u7ec4\u6210\u90e8\u5206\u5b9a\u4e49\uff1a1\uff09\u5b9a\u4e49\u63aa\u65bd\u7684\u51fd\u6570;2\uff09\u8f83\u4f4e\u6216\u8f83\u9ad8\u7684\u503c\u662f\u5426\u88ab\u89c6\u4e3a\u201c\u826f\u597d\u201d;3\uff09\u63aa\u65bd\u53ef\u4ee5\u91c7\u53d6\u7684\u53ef\u80fd\u503c\u7684\u8303\u56f4\u3002<\/p>\n<p style=\"text-indent: 2.0625em;margin-bottom: 12px;text-wrap: wrap;\">\u5c0f\u5e08\u59b9\u5c06\u5728\u793a\u4f8b\u4e2d\uff0c\u5411\u5927\u5bb6\u6f14\u793a\u901a\u8fc7\u5e73\u5747\u7edd\u5bf9\u8bef\u5dee\uff08MAE\uff09\u6765\u8fdb\u884c\u6a21\u578b\u8bc4\u4f30\uff1a<\/p>\n<p style=\"text-indent: 2.0625em;text-wrap: wrap;\"><br \/><\/p>\n<\/section>\n<\/section>\n<\/section>\n<section class=\"code-snippet__fix code-snippet__js\">\n<ul class=\"code-snippet__line-index code-snippet__js\">\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<\/ul>\n<pre class=\"code-snippet__js\" data-lang=\"c\"><code><span class=\"code-snippet_outer\">#\u8bc4\u4ef7\u51c6\u5219\u5217\u8868 <\/span><\/code><code><span class=\"code-snippet_outer\">as.data.table(msr()) <\/span><\/code><code><span class=\"code-snippet_outer\">measure = msr(<span class=\"code-snippet__string\">\"regr.mae\"<\/span>) <\/span><\/code><code><span class=\"code-snippet_outer\">measure <\/span><\/code><\/pre>\n<\/section>\n<p style=\"text-indent: 2em;text-wrap: wrap;\" powered-by=\"xiumi.us\"><br \/><\/p>\n<section style=\"text-align: center;margin-top: 10px;margin-bottom: 10px;line-height: 0;\" powered-by=\"xiumi.us\">\n<section style=\"vertical-align: middle;display: inline-block;line-height: 0;\"><img decoding=\"async\" class=\"rich_pages wxw-img\" data-ratio=\"0.35634328358208955\" data-s=\"300,640\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/14_TVNqAicHbom7tdJNw2P3mjP5FnGoRQ.png?w=640\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/oCSOtP61aEWvVqOBicHvFuDE5TR9k3Dk6iaff46Qic4srPWz8VsDBhRZjkhETVNqAicHbom7tdJNw2P3mjP5FnGoRQ\/640?wx_fmt=png'\" data-type=\"png\" data-w=\"536\" style=\"vertical-align: middle;width: 100%;\" data-recalc-dims=\"1\" \/><\/section>\n<\/section>\n<section style=\"text-align: left;justify-content: flex-start;display: flex;flex-flow: row;margin-bottom: 10px;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 100%;vertical-align: top;align-self: flex-start;flex: 0 0 auto;border-style: solid;border-width: 1px;border-color: rgb(145, 184, 175);padding: 23px;\">\n<section style=\"text-align: justify;color: rgb(62, 62, 62);letter-spacing: 0.5px;\" powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2.0625em;margin-bottom: 12px;text-wrap: wrap;\">\u5e73\u5747\u7edd\u5bf9\u8bef\u5dee\uff08Mean Absolute Error\uff0c\u7b80\u79f0MAE\uff09\u662f\u673a\u5668\u5b66\u4e60\u548c\u7edf\u8ba1\u5b66\u4e2d\u5e38\u7528\u7684\u5ea6\u91cf\u6807\u51c6\uff0c\u7528\u4e8e\u8861\u91cf\u9884\u6d4b\u503c\u4e0e\u5b9e\u9645\u503c\u4e4b\u95f4\u8bef\u5dee\u7684\u5e73\u5747\u5927\u5c0f\uff0c\u5b83\u63d0\u4f9b\u4e86\u4e00\u79cd\u7b80\u5355\u7684\u65b9\u5f0f\u6765\u91cf\u5316\u9884\u6d4b\u6a21\u578b\u7684\u6574\u4f53\u51c6\u786e\u6027\u3002<\/p>\n<p style=\"text-indent: 2.0625em;margin-bottom: 12px;text-wrap: wrap;\"><br \/><\/p>\n<p style=\"text-indent: 2.0625em;text-wrap: wrap;\">\u5e73\u5747\u7edd\u5bf9\u8bef\u5dee\uff08MAE\uff09\u7684\u8ba1\u7b97\u516c\u5f0f\u5982\u4e0b\uff1a<\/p>\n<\/section>\n<section style=\"text-align: center;margin-top: 10px;margin-bottom: 10px;line-height: 0;\" powered-by=\"xiumi.us\">\n<section style=\"vertical-align: middle;display: inline-block;line-height: 0;\"><img decoding=\"async\" class=\"rich_pages wxw-img\" data-ratio=\"0.27631578947368424\" data-s=\"300,640\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/15_1P3onDVkFse5TN8gKJ7xOAtEvmkEjQ.png?w=640\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/oCSOtP61aEWvVqOBicHvFuDE5TR9k3Dk6qM2VJ86Wya8O9yjFhLxiac02N1P3onDVkFse5TN8gKJ7xOAtEvmkEjQ\/640?wx_fmt=png'\" data-type=\"png\" data-w=\"456\" style=\"vertical-align: middle;width: 100%;\" data-recalc-dims=\"1\" \/><\/section>\n<\/section>\n<section style=\"text-align: justify;color: rgb(62, 62, 62);letter-spacing: 0.5px;\" powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2.0625em;margin-bottom: 12px;text-wrap: wrap;\"><br \/><\/p>\n<p style=\"text-indent: 2.0625em;text-wrap: wrap;\">\u4e0b\u9762\uff0c\u6211\u4eec\u5c06\u8ba1\u7b97\u6a21\u578b\u7684MAE\uff0c\u4e5f\u53ef\u4ee5\u540c\u65f6\u8ba1\u7b97\u591a\u4e2a\u8bc4\u4ef7\u51c6\u5219\uff1a<\/p>\n<\/section>\n<\/section>\n<\/section>\n<section class=\"code-snippet__fix code-snippet__js\">\n<ul class=\"code-snippet__line-index code-snippet__js\">\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<\/ul>\n<pre class=\"code-snippet__js\" data-lang=\"c\"><code><span class=\"code-snippet_outer\">#\u8ba1\u7b97MAE<\/span><\/code><code><span class=\"code-snippet_outer\">prediction$score(measure) <\/span><\/code><code><span class=\"code-snippet_outer\">#\u8ba1\u7b97MAE\u3001MSE<\/span><\/code><code><span class=\"code-snippet_outer\">measures = msrs(c(<span class=\"code-snippet__string\">\"regr.mse\"<\/span>, <span class=\"code-snippet__string\">\"regr.mae\"<\/span>)) <\/span><\/code><code><span class=\"code-snippet_outer\">prediction$score(measures)<\/span><\/code><\/pre>\n<\/section>\n<section style=\"text-align: center;margin-top: 10px;margin-bottom: 10px;line-height: 0;\" powered-by=\"xiumi.us\">\n<section style=\"vertical-align: middle;display: inline-block;line-height: 0;\"><img decoding=\"async\" class=\"rich_pages wxw-img\" data-ratio=\"0.3333333333333333\" data-s=\"300,640\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/16_7wrUCdQTdefSKquldEKeBBWQiaP04A.png?w=640\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/oCSOtP61aEWvVqOBicHvFuDE5TR9k3Dk6CLwRUjqwz8VYkibzyAUQ0iack687wrUCdQTdefSKquldEKeBBWQiaP04A\/640?wx_fmt=png'\" data-type=\"png\" data-w=\"459\" style=\"vertical-align: middle;width: 100%;\" data-recalc-dims=\"1\" \/><\/section>\n<\/section>\n<section style=\"text-align: left;justify-content: flex-start;display: flex;flex-flow: row;margin-bottom: 10px;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 100%;vertical-align: top;align-self: flex-start;flex: 0 0 auto;border-style: solid;border-width: 1px;border-color: rgb(145, 184, 175);padding: 23px;\">\n<section style=\"text-align: justify;color: rgb(62, 62, 62);letter-spacing: 0.5px;\" powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2.0625em;text-wrap: wrap;\">Mlr3\u4e2d\u4e0d\u4ec5\u63d0\u4f9b\u4e86\u6a21\u578b\u9884\u6d4b\u7ed3\u679c\u7684\u8bc4\u4ef7\u51c6\u5219\uff0c\u8fd8\u6709\u4e00\u7cfb\u5217\u8ddf\u6a21\u578b\u6709\u5173\u7684\u5143\u4fe1\u606f\uff1a<\/p>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"text-align: center;margin-top: 10px;margin-bottom: 10px;line-height: 0;\" powered-by=\"xiumi.us\">\n<section style=\"vertical-align: middle;display: inline-block;line-height: 0;\"><img decoding=\"async\" class=\"rich_pages wxw-img\" data-ratio=\"0.32037037037037036\" data-s=\"300,640\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/17_tPWmic0ZicHetho5sfCvrnI7Zw6tBw.png?w=640\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/oCSOtP61aEWvVqOBicHvFuDE5TR9k3Dk6FHzWbsszUwtkatk24gsUTCDSphtPWmic0ZicHetho5sfCvrnI7Zw6tBw\/640?wx_fmt=png'\" data-type=\"png\" data-w=\"1080\" style=\"vertical-align: middle;width: 100%;\" data-recalc-dims=\"1\" \/><\/section>\n<\/section>\n<section powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2em;text-wrap: wrap;\"><br \/><\/p>\n<p style=\"text-indent: 2em;text-wrap: wrap;\"><br \/><\/p>\n<\/section>\n<section style=\"text-align: left;justify-content: flex-start;display: flex;flex-flow: row;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 100%;vertical-align: top;align-self: flex-start;flex: 0 0 auto;border-style: solid;border-width: 0px 0px 0px 1px;border-color: rgb(145, 184, 175);\">\n<section style=\"justify-content: flex-start;display: flex;flex-flow: row;margin-top: -17px;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: auto;vertical-align: top;align-self: flex-start;flex: 0 0 auto;background-color: rgb(236, 247, 244);padding: 6px 19px 5px 84px;min-width: 5%;height: auto;\">\n<section style=\"text-align: right;margin-bottom: -4px;\" powered-by=\"xiumi.us\">\n<section style=\"text-align: justify;font-size: 12px;color: rgb(145, 184, 175);\">\n<p style=\"text-align: right;text-wrap: wrap;\"><em>\u6700\u540e<\/em><\/p>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"justify-content: flex-start;display: flex;flex-flow: row;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 100%;vertical-align: top;align-self: flex-start;flex: 0 0 auto;padding: 26px;\">\n<section style=\"text-align: justify;color: rgb(62, 62, 62);letter-spacing: 0.5px;\" powered-by=\"xiumi.us\">\n<p>\u5230\u8fd9\u91cc\uff0c\u4eca\u5929\u7684\u5185\u5bb9\u5c0f\u5e08\u59b9\u5c31\u5411\u5927\u5bb6\u8bb2\u5b8c\u4e86\uff0c\u4e0d\u77e5\u9053\u540c\u5b66\u4eec\u662f\u5426\u5b66\u4f1a\u4e86\u5462\uff0c\u5728\u5c0f\u5e08\u59b9\u7684\u966a\u4f34\u4e0b\uff0c\u76f8\u4fe1\u5c0f\u4f19\u4f34\u4eec\u5df2\u7ecf\u57fa\u672c\u638c\u63e1\u4e86\u673a\u5668\u5b66\u4e60\u4e2d\u7684\u8d85\u53c2\u6570\u548c\u8bc4\u4ef7\u76f8\u5173\u7684\u77e5\u8bc6\uff0c\u4f1a\u901a\u8fc7R\u8bed\u8a00\u7f16\u5199\u76f8\u5e94\u7684\u7a0b\u5e8f\uff0c\u5c0f\u5e08\u59b9\u8981\u548c\u5927\u5bb6\u8bf4\u518d\u89c1\u54af\uff0c\u4e00\u5b9a\u8981\u81ea\u5df1\u7ec3\u4e60\u4e00\u4e0b\u54e6\uff0c\u540c\u65f6\u5982\u679c\u5927\u5bb6\u60f3\u8981\u7ee7\u7eed\u4e86\u89e3\u66f4\u591a\u6709\u5173R\u8bed\u8a00\u5185\u5bb9\u53ef\u4ee5\u6301\u7eed\u5173\u6ce8\u5c0f\u5e08\u59b9\u54e6\uff5e\uff5e\u6216\u8005\u4e5f\u53ef\u4ee5\u5173\u6ce8\u6211\u4eec\u7684\u5b98\u7f51\u4e5f\u4f1a\u6301\u7eed\u66f4\u65b0\u7684\u54e6\uff5e http:\/\/www.biocloudservice.com\/home.html<\/p>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<p style=\"margin-bottom: 24px;\"><img decoding=\"async\" class=\"rich_pages wxw-img\" data-ratio=\"0.35083798882681566\" data-s=\"300,640\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/18_LzaFJVwzzLgfnj6Qf8lBiaTR4Pziag-9.jpg?w=640\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_jpg\/oCSOtP61aEUEOPhTDbhztaU7davdEP2YWOAtToI143Aic2TkkStosJ9iahcnLzaFJVwzzLgfnj6Qf8lBiaTR4Pziag\/640?wx_fmt=jpeg'\" data-type=\"jpeg\" data-w=\"895\" style=\"\" data-recalc-dims=\"1\" \/><\/p>\n<p style=\"margin-bottom: 24px;\"><img decoding=\"async\" class=\"rich_pages wxw-img\" data-ratio=\"0.5555555555555556\" data-s=\"300,640\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/19_akXKU5NcO1KwuWc1Rk7ZJ56LC2pYrQ-9.png?w=640\" 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\/><\/p>\n<\/section>\n<section style=\"text-align: justify;color: rgb(62, 62, 62);letter-spacing: 0.5px;\" powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2.0625em;margin-bottom: 12px;text-wrap: wrap;\">\u5728\u4e0a\u4e00\u8282\u4e2d\uff0c\u5c0f\u5e08\u59b9\u5e26\u5927\u5bb6\u5b66\u4e60\u4e86mlr3\u4e2d\u81f3\u5173\u91cd\u8981\u7684learner\u65b9\u6cd5\uff0c\u5bf9\u5e94\u673a\u5668\u5b66\u4e60\u4e2d\u7684\u4e0d\u540c\u7b97\u6cd5\uff08\u5982\u51b3\u7b56\u6811\u3001\u968f\u673a\u68ee\u6797\u3001\u652f\u6301\u5411\u91cf\u673a\u7b49\uff09\u3002\u5c0f\u4f19\u4f34\u4eec\u73b0\u5728\u5df2\u7ecf\u5b66\u4f1a\u4e86\u521b\u5efatask\u673a\u5668\u5b66\u4e60\u4efb\u52a1\uff0c\u5e76\u901a\u8fc7learner\u8fdb\u884c\u5b66\u4e60\u3001\u6570\u636e\u5206\u533a\u548c\u9884\u6d4b 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wrap;\">\u673a\u5668\u5b66\u4e60\u7b97\u6cd5\u901a\u5e38\u5305\u62ec\u53c2\u6570\u548c\u8d85\u53c2\u6570\u3002\u53c2\u6570\u662f\u6a21\u578b\u7cfb\u6570\u6216\u6743\u91cd\u6216\u5176\u4ed6\u4fe1\u606f\uff0c\u7531\u5b66\u4e60\u7b97\u6cd5\u57fa\u4e8e\u8bad\u7ec3\u6570\u636e\u8fdb\u884c\u4f18\u5316\u786e\u5b9a\u3002\u76f8\u53cd\uff0c\u8d85\u53c2\u6570\u7531\u7528\u6237\u914d\u7f6e\uff0c\u5e76\u786e\u5b9a\u6a21\u578b\u5c06\u5982\u4f55\u9002\u5408\u5176\u53c2\u6570\uff0c\u5373\u6a21\u578b\u5982\u4f55\u6784\u5efa\u3002\u793a\u4f8b\u5305\u62ec\u8bbe\u7f6e\u968f\u673a\u68ee\u6797\u4e2d\u7684\u6811\u6570\u3001\u652f\u6301\u5411\u91cf\u673a\u4e2d\u7684\u60e9\u7f5a\u8bbe\u7f6e\u6216\u795e\u7ecf\u7f51\u7edc\u4e2d\u7684\u5b66\u4e60\u7387\u3002<\/p>\n<p style=\"text-indent: 2.0625em;margin-bottom: 12px;text-wrap: wrap;\">Learners\u65b9\u6cd5\u5c01\u88c5\u4e86\u673a\u5668\u5b66\u4e60\u7b97\u6cd5\u53ca\u5176\u8d85\u53c2\u6570\uff0c\u8fd9\u4e9b\u53c2\u6570\u4f1a\u5f71\u54cd\u7b97\u6cd5\u7684\u8fd0\u884c\u65b9\u5f0f\uff0c\u540c\u65f6\u53ef\u7531\u7528\u6237\u8fdb\u884c\u8bbe\u7f6e\u3002\u8d85\u53c2\u6570\u901a\u5e38\u4f1a\u5f71\u54cd\u6a21\u578b\u7684\u8bad\u7ec3\u65b9\u5f0f\u6216\u9884\u6d4b\u65b9\u5f0f\uff0c\u51b3\u5b9a\u5982\u4f55\u8bbe\u7f6e\u8d85\u53c2\u6570\u53ef\u80fd\u9700\u8981\u4e13\u4e1a\u77e5\u8bc6\u3002<\/p>\n<p><br \/><\/p>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"text-align: center;margin-top: 10px;margin-bottom: 10px;line-height: 0;\" powered-by=\"xiumi.us\">\n<section style=\"vertical-align: middle;display: inline-block;line-height: 0;\"><img decoding=\"async\" class=\"rich_pages wxw-img\" data-ratio=\"0.39537037037037037\" data-s=\"300,640\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/3_ribA8cpNnYdgvNuHqn2NLSfCtxKcXg.png?w=640\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/oCSOtP61aEWvVqOBicHvFuDE5TR9k3Dk6oib70Wjd8FjibUX4YAyHbPycnnJribA8cpNnYdgvNuHqn2NLSfCtxKcXg\/640?wx_fmt=png'\" data-type=\"png\" data-w=\"1080\" style=\"vertical-align: middle;width: 100%;\" data-recalc-dims=\"1\" \/><\/section>\n<\/section>\n<section style=\"text-align: left;justify-content: flex-start;display: flex;flex-flow: row;margin-bottom: 10px;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 100%;vertical-align: top;align-self: flex-start;flex: 0 0 auto;border-style: solid;border-width: 1px;border-color: rgb(145, 184, 175);padding: 23px;\">\n<section style=\"text-align: justify;color: rgb(62, 62, 62);letter-spacing: 0.5px;\" powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2.0625em;text-wrap: wrap;\">\u5728\u672c\u8282\u4e2d\uff0c\u5c0f\u5e08\u59b9\u5c06\u6559\u4f1a\u5927\u5bb6\u5982\u4f55\u624b\u52a8\u8c03\u6574\u8d85\u53c2\u6570\uff0c\u5e76\u5bf9\u8bbe\u5b9a\u597d\u7684\u673a\u5668\u5b66\u4e60\u6a21\u578b\u8fdb\u884c\u6027\u80fd\u8bc4\u4f30\uff0c\u5373\u5224\u65ad\u6a21\u578b\u9884\u6d4b\u7684\u8d28\u91cf\u662f\u5426\u201d\u826f\u597d\u201d\u3002\u9996\u5148\uff0c\u8ba9\u6211\u4eec\u5bfc\u5165mlr3\u5305\uff1a<\/p>\n<\/section>\n<\/section>\n<\/section>\n<section class=\"code-snippet__fix code-snippet__js\">\n<ul class=\"code-snippet__line-index code-snippet__js\">\n<li><\/li>\n<\/ul>\n<pre class=\"code-snippet__js\" data-lang=\"c\"><code><span class=\"code-snippet_outer\">library(mlr3) <\/span><\/code><\/pre>\n<\/section>\n<section style=\"text-align: center;justify-content: center;display: flex;flex-flow: row;margin-top: 20px;margin-bottom: 10px;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: auto;vertical-align: top;align-self: flex-start;flex: 0 0 auto;min-width: 5%;height: auto;background-color: rgb(236, 247, 244);padding-right: 26px;padding-left: 26px;\">\n<section style=\"text-align: left;margin-top: -10px;margin-bottom: -24px;line-height: 0;transform: translate3d(-10px, 0px, 0px);\" powered-by=\"xiumi.us\">\n<section style=\"vertical-align: middle;display: inline-block;line-height: 0;width: 54px;height: auto;\"><img decoding=\"async\" data-ratio=\"0.7305555555555555\" data-s=\"300,640\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/2_iawZINSgibFqslChOkNP2o0cE7PsPg.png?w=640\" onerror=\"this.src='\u56fe\u7247\/\u751f\u4fe1\u679c_2023-09-07_\u300c\u8f6c\u300dmlr3\u4e2d\u7684\u673a\u5668\u5b66\u4e60--\u8fdb\u5165\u751f\u7269\u4fe1\u606f\u5b66\u65b0\u65f6\u4ee3\uff083\uff09\/4_iawZINSgibFqslChOkNP2o0cE7PsPg.png\" onerror=\"this.src='\u56fe\u7247\/\u751f\u4fe1\u679c_2023-09-07_\u300c\u8f6c\u300dmlr3\u4e2d\u7684\u673a\u5668\u5b66\u4e60--\u8fdb\u5165\u751f\u7269\u4fe1\u606f\u5b66\u65b0\u65f6\u4ee3\uff083\uff09\/7_iawZINSgibFqslChOkNP2o0cE7PsPg.png\" onerror=\"this.src='\u56fe\u7247\/\u751f\u4fe1\u679c_2023-09-07_\u300c\u8f6c\u300dmlr3\u4e2d\u7684\u673a\u5668\u5b66\u4e60--\u8fdb\u5165\u751f\u7269\u4fe1\u606f\u5b66\u65b0\u65f6\u4ee3\uff083\uff09\/11_iawZINSgibFqslChOkNP2o0cE7PsPg.png\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/oCSOtP61aEWvVqOBicHvFuDE5TR9k3Dk6NOeOaeic6pGKCvrXj9H3R2TBqLmiawZINSgibFqslChOkNP2o0cE7PsPg\/640?wx_fmt=png''''\" data-type=\"png\" data-w=\"1080\" style=\"vertical-align: middle;width: 100%;\" class=\"rich_pages wxw-img\" data-recalc-dims=\"1\" \/><\/section>\n<\/section>\n<section style=\"text-align: left;justify-content: flex-start;display: flex;flex-flow: row;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;vertical-align: bottom;width: auto;min-width: 5%;flex: 0 0 auto;height: auto;align-self: flex-end;\">\n<section style=\"\" powered-by=\"xiumi.us\">\n<section style=\"text-align: justify;font-size: 38px;color: rgb(72, 101, 94);\">\n<p style=\"text-align: left;text-wrap: wrap;\"><em><strong>\u4e00<\/strong><span style=\"font-size: 20px;\">#<\/span><\/em><\/p>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: bottom;width: auto;align-self: flex-end;flex: 0 0 auto;min-width: 5%;height: auto;padding-left: 9px;\">\n<section style=\"transform: perspective(0px);transform-style: flat;\" powered-by=\"xiumi.us\">\n<section style=\"text-align: right;transform: rotateX(180deg);margin-bottom: -10px;\">\n<section style=\"display: inline-block;width: 14px;height: 14px;vertical-align: top;overflow: hidden;border-radius: 135px;background-color: rgb(247, 161, 158);\">\n<section style=\"text-align: justify;\" powered-by=\"xiumi.us\">\n<p><br \/><\/p>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"margin-bottom: -7px;\" powered-by=\"xiumi.us\">\n<section style=\"text-align: justify;font-size: 12px;color: rgb(145, 184, 175);\">\n<p style=\"text-align: left;text-wrap: wrap;\"><em>2023<\/em><\/p>\n<\/section>\n<\/section>\n<section style=\"margin-top: 8px;\" powered-by=\"xiumi.us\">\n<section style=\"background-color: rgb(145, 184, 175);height: 1px;\"><svg viewbox=\"0 0 1 1\" style=\"float:left;line-height:0;width:0;vertical-align:top;\"><\/svg><\/section>\n<\/section>\n<section style=\"margin-bottom: 10px;\" powered-by=\"xiumi.us\">\n<section style=\"text-align: justify;color: rgb(145, 184, 175);\">\n<p><strong><em><br \/><\/em><\/strong><\/p>\n<p><strong><em>\u4e00.\u8d85\u53c2\u6570\u6982\u89c8<\/em><\/strong><\/p>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"text-align: left;justify-content: flex-start;display: flex;flex-flow: row;margin-bottom: 10px;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 100%;vertical-align: top;align-self: flex-start;flex: 0 0 auto;border-style: solid;border-width: 1px;border-color: rgb(145, 184, 175);padding: 23px;\">\n<section style=\"text-align: justify;color: rgb(62, 62, 62);letter-spacing: 0.5px;\" powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2.0625em;margin-bottom: 12px;text-wrap: wrap;\">\u5728\u8fdb\u884c\u4e00\u4e2a\u6a21\u578b\u7684\u8d85\u53c2\u6570\u8bbe\u5b9a\u4e4b\u524d\uff0c\u6211\u4eec\u9700\u8981\u77e5\u9053\u6a21\u578b\u5177\u4f53\u6709\u54ea\u4e9b\u53ef\u4ee5\u8c03\u6574\u7684\u8d85\u53c2\u6570\uff0c\u8d85\u53c2\u6570\u7684\u540d\u79f0\u3001\u53c2\u6570\u7c7b\u578b\u3001\u9ed8\u8ba4\u53d6\u503c\u548c\u53c2\u6570\u7a7a\u95f4\u7b49\u3002<\/p>\n<p style=\"text-indent: 2.0625em;text-wrap: wrap;\">\u5c0f\u5e08\u59b9\u5c06\u5e26\u5927\u5bb6\u4f7f\u7528\u51b3\u7b56\u6811learner\u8fdb\u884c\u6f14\u793a\uff0c\u53ef\u4ee5\u4f7f\u7528$param_set\u6765\u8bbf\u95eelearner\u4e2d\u7684\u8d85\u53c2\u6570\uff1a<\/p>\n<\/section>\n<\/section>\n<\/section>\n<section class=\"code-snippet__fix code-snippet__js\">\n<ul class=\"code-snippet__line-index code-snippet__js\">\n<li><\/li>\n<li><\/li>\n<\/ul>\n<pre class=\"code-snippet__js\" data-lang=\"c\"><code><span class=\"code-snippet_outer\">lrn_rpart = lrn(<span class=\"code-snippet__string\">\"regr.rpart\"<\/span>) <\/span><\/code><code><span class=\"code-snippet_outer\">lrn_rpart$param_set <\/span><\/code><\/pre>\n<\/section>\n<section style=\"text-align: center;margin-top: 10px;margin-bottom: 10px;line-height: 0;\" powered-by=\"xiumi.us\">\n<section style=\"vertical-align: middle;display: inline-block;line-height: 0;\"><img decoding=\"async\" class=\"rich_pages wxw-img\" data-ratio=\"0.32061068702290074\" data-s=\"300,640\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/5_2tkh65VAbPk2VZDRze8FwNzRj9fhSg.png?w=640\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/oCSOtP61aEWvVqOBicHvFuDE5TR9k3Dk6IgqlqJno3Szw28YZCianc001S2tkh65VAbPk2VZDRze8FwNzRj9fhSg\/640?wx_fmt=png'\" data-type=\"png\" data-w=\"786\" style=\"vertical-align: middle;width: 100%;\" data-recalc-dims=\"1\" \/><\/section>\n<\/section>\n<section style=\"letter-spacing: 0.5px;\" powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2.0625em;text-wrap: wrap;\">\u8be5\u8f93\u51fa\u7684\u7b2c\u4e00\u5217(id)\u662f\u8d85\u53c2\u6570\u7684\u540d\u79f0\uff0c\u7b2c\u4e8c\u5217(class)\u662f\u8d85\u53c2\u6570\u7684\u7c7b\u578b\uff0c\u7b2c\u4e09\u5217\u7b2c\u56db\u5217(lower,upper)\u662f\u8d85\u53c2\u6570\u7684\u4e0a\u754c\u548c\u4e0b\u754c\uff0c\u7b2c\u4e94\u5217(nleverls)\u662f\u6307\u5176\u53ef\u80fd\u7684\u53d6\u503c\u6570\u91cf\uff0cInf\u4ee3\u8868\u65e0\u7a77\u591a\uff08\u5927\uff09\uff0cdefault\u662f\u8d85\u53c2\u6570\u7684\u9ed8\u8ba4\u503c\uff0cvalue\u662f\u8bbe\u5b9a\u503c\u3002<\/p>\n<\/section>\n<section style=\"text-align: center;margin-top: 10px;margin-bottom: 10px;line-height: 0;\" powered-by=\"xiumi.us\">\n<section style=\"vertical-align: middle;display: inline-block;line-height: 0;\"><img decoding=\"async\" class=\"rich_pages wxw-img\" data-ratio=\"0.2462962962962963\" data-s=\"300,640\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/6_uYMoPgDwKP6vjpaqO4smcGN5Zial9g.png?w=640\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/oCSOtP61aEWvVqOBicHvFuDE5TR9k3Dk6v31JUBk7zotgglFnPIQJOv6vCuYMoPgDwKP6vjpaqO4smcGN5Zial9g\/640?wx_fmt=png'\" data-type=\"png\" data-w=\"1080\" style=\"vertical-align: middle;width: 100%;\" data-recalc-dims=\"1\" \/><\/section>\n<\/section>\n<section style=\"text-align: left;justify-content: flex-start;display: flex;flex-flow: row;margin-bottom: 10px;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 100%;vertical-align: top;align-self: flex-start;flex: 0 0 auto;border-style: solid;border-width: 1px;border-color: rgb(145, 184, 175);padding: 23px;\">\n<section style=\"text-align: justify;color: rgb(62, 62, 62);letter-spacing: 0.5px;\" powered-by=\"xiumi.us\">\n<p>\u4ece\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u4ece\u8f93\u51fa\u4e2d\u6211\u4eec\u53ef\u4ee5\u5224\u65ad\uff1a<\/p>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"letter-spacing: 0.5px;\" powered-by=\"xiumi.us\">\n<ul style=\"list-style-type: \uf06c;padding-left: 40px;list-style-position: outside;\" class=\"list-paddingleft-1\">\n<li>\n<p>cp\u662f\u53cc\u7cbe\u5ea6\u5b9e\u6570\uff0c\u53d6\u503c\u4ecb\u4e8e(0,1),\u9ed8\u8ba4\u503c\u4e3a0.01<\/p>\n<\/li>\n<li>\n<p>keep_model\u662f\u5e03\u5c14\u53d8\u91cf\uff0c\u5176\u9ed8\u8ba4\u503c\u4e3aFALSE\uff080\uff09<\/p>\n<\/li>\n<li>\n<p>xval\u662f\u6574\u6570\u53d8\u91cf\uff0c\u53d6\u503c\u4ecb\u4e8e,\u9ed8\u8ba4\u503c\u4e3a10<\/p>\n<\/li>\n<li>\n<p>\u2026\u2026<\/p>\n<\/li>\n<\/ul>\n<\/section>\n<section style=\"text-align: center;justify-content: center;display: flex;flex-flow: row;margin-top: 20px;margin-bottom: 10px;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: auto;vertical-align: top;align-self: flex-start;flex: 0 0 auto;min-width: 5%;height: auto;background-color: rgb(236, 247, 244);padding-right: 26px;padding-left: 26px;\">\n<section style=\"text-align: left;margin-top: -10px;margin-bottom: -24px;line-height: 0;transform: translate3d(-10px, 0px, 0px);\" powered-by=\"xiumi.us\">\n<section style=\"vertical-align: middle;display: inline-block;line-height: 0;width: 54px;height: auto;\"><img decoding=\"async\" data-ratio=\"0.7305555555555555\" data-s=\"300,640\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/2_iawZINSgibFqslChOkNP2o0cE7PsPg.png?w=640\" onerror=\"this.src='\u56fe\u7247\/\u751f\u4fe1\u679c_2023-09-07_\u300c\u8f6c\u300dmlr3\u4e2d\u7684\u673a\u5668\u5b66\u4e60--\u8fdb\u5165\u751f\u7269\u4fe1\u606f\u5b66\u65b0\u65f6\u4ee3\uff083\uff09\/4_iawZINSgibFqslChOkNP2o0cE7PsPg.png\" onerror=\"this.src='\u56fe\u7247\/\u751f\u4fe1\u679c_2023-09-07_\u300c\u8f6c\u300dmlr3\u4e2d\u7684\u673a\u5668\u5b66\u4e60--\u8fdb\u5165\u751f\u7269\u4fe1\u606f\u5b66\u65b0\u65f6\u4ee3\uff083\uff09\/7_iawZINSgibFqslChOkNP2o0cE7PsPg.png\" onerror=\"this.src='\u56fe\u7247\/\u751f\u4fe1\u679c_2023-09-07_\u300c\u8f6c\u300dmlr3\u4e2d\u7684\u673a\u5668\u5b66\u4e60--\u8fdb\u5165\u751f\u7269\u4fe1\u606f\u5b66\u65b0\u65f6\u4ee3\uff083\uff09\/11_iawZINSgibFqslChOkNP2o0cE7PsPg.png\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/oCSOtP61aEWvVqOBicHvFuDE5TR9k3Dk6NOeOaeic6pGKCvrXj9H3R2TBqLmiawZINSgibFqslChOkNP2o0cE7PsPg\/640?wx_fmt=png''''\" data-type=\"png\" data-w=\"1080\" style=\"vertical-align: middle;width: 100%;\" data-recalc-dims=\"1\" \/><\/section>\n<\/section>\n<section style=\"text-align: left;justify-content: flex-start;display: flex;flex-flow: row;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;vertical-align: bottom;width: auto;min-width: 5%;flex: 0 0 auto;height: auto;align-self: flex-end;\">\n<section style=\"\" powered-by=\"xiumi.us\">\n<section style=\"text-align: justify;font-size: 38px;color: rgb(72, 101, 94);\">\n<p style=\"text-align: left;text-wrap: wrap;\"><em><strong>\u4e8c<\/strong><span style=\"font-size: 20px;\">#<\/span><\/em><\/p>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: bottom;width: auto;align-self: flex-end;flex: 0 0 auto;min-width: 5%;height: auto;padding-left: 9px;\">\n<section style=\"transform: perspective(0px);transform-style: flat;\" powered-by=\"xiumi.us\">\n<section style=\"text-align: right;transform: rotateX(180deg);margin-bottom: -10px;\">\n<section style=\"display: inline-block;width: 14px;height: 14px;vertical-align: top;overflow: hidden;border-radius: 135px;background-color: rgb(247, 161, 158);\">\n<section style=\"text-align: justify;\" powered-by=\"xiumi.us\">\n<p><br \/><\/p>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"margin-bottom: -7px;\" powered-by=\"xiumi.us\">\n<section style=\"text-align: justify;font-size: 12px;color: rgb(145, 184, 175);\">\n<p style=\"text-align: left;text-wrap: wrap;\"><em>2023<\/em><\/p>\n<\/section>\n<\/section>\n<section style=\"margin-top: 8px;\" powered-by=\"xiumi.us\">\n<section style=\"background-color: rgb(145, 184, 175);height: 1px;\"><svg viewbox=\"0 0 1 1\" style=\"float:left;line-height:0;width:0;vertical-align:top;\"><\/svg><\/section>\n<\/section>\n<section style=\"margin-bottom: 10px;\" powered-by=\"xiumi.us\">\n<section style=\"text-align: justify;color: rgb(145, 184, 175);\">\n<p><strong><em>\u83b7\u53d6\u548c\u8bbe\u7f6e\u8d85\u53c2\u6570<\/em><\/strong><\/p>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"text-align: left;justify-content: flex-start;display: flex;flex-flow: row;margin-bottom: 10px;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 100%;vertical-align: top;align-self: flex-start;flex: 0 0 auto;border-style: solid;border-width: 1px;border-color: rgb(145, 184, 175);padding: 23px;\">\n<section style=\"text-align: justify;color: rgb(62, 62, 62);letter-spacing: 0.5px;\" powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2.0625em;margin-bottom: 12px;text-wrap: wrap;\">\u7ecf\u8fc7\u4e0a\u9762\u7684\u8bb2\u89e3\uff0c\u5c0f\u4f19\u4f34\u4eec\u6709\u6ca1\u6709\u660e\u767d\u8d85\u53c2\u6570\u503c\u662f\u5982\u4f55\u5b58\u50a8\u7684\u5462\uff1f\u73b0\u5728\uff0c\u6211\u4eec\u8981\u8003\u8651\u5982\u4f55\u83b7\u53d6\u5e76\u8bbe\u7f6e\u5b83\u4eec\u3002\u4f8b\u5982\u6211\u4eec\u7684\u51b3\u7b56\u6811\u6a21\u578b\uff0c\u5047\u8bbe\u6211\u4eec\u73b0\u5728\u60f3\u8981\u521b\u5efa\u4e00\u4e2a\u6709\u6df1\u5ea6\u7684\u6811\uff0c\u5176\u4e2d\u6570\u636e\u4ec5\u88ab\u62c6\u5206\u6210\u4e3a\u4e24\u4e2a\u7ec8\u7aef\u8282\u70b9\u4e00\u6b21\u3002<\/p>\n<p style=\"text-indent: 2.0625em;text-wrap: wrap;\">\u4e0b\u9762\u7684\u51e0\u79cd\u65b9\u6cd5\u53ef\u4ee5\u66f4\u6539\u8be5\u8d85\u53c2\u6570\uff1a<\/p>\n<\/section>\n<\/section>\n<\/section>\n<section class=\"code-snippet__fix code-snippet__js\">\n<ul class=\"code-snippet__line-index code-snippet__js\">\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<\/ul>\n<pre class=\"code-snippet__js\" data-lang=\"c\"><code><span class=\"code-snippet_outer\">#\u66f4\u6539\u8d85\u53c2\u6570 <\/span><\/code><code><span class=\"code-snippet_outer\">#<span class=\"code-snippet__number\">1<\/span>\u901a\u8fc7learner\u65b9\u6cd5\u4fee\u6539 <\/span><\/code><code><span class=\"code-snippet_outer\">lrn_rpart = lrn(<span class=\"code-snippet__string\">\"regr.rpart\"<\/span>, maxdepth = <span class=\"code-snippet__number\">3<\/span>, xval = <span class=\"code-snippet__number\">1<\/span>) <\/span><\/code><code><span class=\"code-snippet_outer\">lrn_rpart$param_set$values <\/span><\/code><code><span class=\"code-snippet_outer\">lrn_rpart$train(tsk(<span class=\"code-snippet__string\">\"mtcars\"<\/span>))$model <\/span><\/code><code><span class=\"code-snippet_outer\">#<span class=\"code-snippet__number\">2<\/span>\u66f4\u65b0\u5217\u8868 <\/span><\/code><code><span class=\"code-snippet_outer\">lrn_rpart$param_set$values$maxdepth = <span class=\"code-snippet__number\">2<\/span> <\/span><\/code><code><span class=\"code-snippet_outer\">lrn_rpart$param_set$values <\/span><\/code><code><span class=\"code-snippet_outer\">lrn_rpart$train(tsk(<span class=\"code-snippet__string\">\"mtcars\"<\/span>))$model <\/span><\/code><code><span class=\"code-snippet_outer\">#<span class=\"code-snippet__number\">3<\/span>set_values\u51fd\u6570 <\/span><\/code><code><span class=\"code-snippet_outer\">lrn_rpart$param_set$set_values(xval = <span class=\"code-snippet__number\">2<\/span>, cp = <span class=\"code-snippet__number\">0.5<\/span>) <\/span><\/code><code><span class=\"code-snippet_outer\">lrn_rpart$param_set$values <\/span><\/code><\/pre>\n<\/section>\n<section style=\"text-align: left;justify-content: flex-start;display: flex;flex-flow: row;margin-bottom: 10px;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 100%;vertical-align: top;align-self: flex-start;flex: 0 0 auto;border-style: solid;border-width: 1px;border-color: rgb(145, 184, 175);padding: 23px;\">\n<section style=\"text-align: justify;color: rgb(62, 62, 62);letter-spacing: 0.5px;\" powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2.0625em;text-wrap: wrap;\">\u5176\u4e2d\uff0c\u7b2c\u4e00\u79cd\u65b9\u6cd5\uff0c\u901a\u8fc7\u5728lrn()\u51fd\u6570\u4e2d\u8bbe\u5b9a\u8d85\u53c2\u6570\u7684\u53d6\u503c\uff0c\u53ef\u4ee5\u66f4\u6539\u8d85\u53c2\u6570\uff1b\u5728\u7b2c\u4e8c\u79cd\u65b9\u6cd5\u4e2d\uff0c\u6211\u4eec\u901a\u8fc7\u83b7\u53d6param_set\u5217\u8868\u4e2d\u7684values\uff0c\u8bbe\u5b9amaxdepth=2\uff1b\u5728\u7b2c\u4e09\u79cd\u65b9\u6cd5\u4e2d\uff0c\u901a\u8fc7param_set\u4e2d\u7684set_values\uff08\uff09\u51fd\u6570\uff0c\u53ef\u4ee5\u66f4\u6539\u591a\u4e2a\u8d85\u53c2\u6570\u3002<\/p>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"text-align: center;margin-top: 10px;margin-bottom: 10px;line-height: 0;\" powered-by=\"xiumi.us\">\n<section style=\"vertical-align: middle;display: inline-block;line-height: 0;\"><img decoding=\"async\" class=\"rich_pages wxw-img\" data-ratio=\"0.7647058823529411\" data-s=\"300,640\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/8_EyplgLLQXfnoVEwM5ALDWJhV1bicfA.png?w=640\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/oCSOtP61aEWvVqOBicHvFuDE5TR9k3Dk6SleyQ8tj9K9K4wFpc1JYQ6RG1EyplgLLQXfnoVEwM5ALDWJhV1bicfA\/640?wx_fmt=png'\" data-type=\"png\" data-w=\"459\" style=\"vertical-align: middle;width: 100%;\" data-recalc-dims=\"1\" \/><\/section>\n<\/section>\n<section style=\"text-align: center;margin-top: 10px;margin-bottom: 10px;line-height: 0;\" powered-by=\"xiumi.us\">\n<section style=\"vertical-align: middle;display: inline-block;line-height: 0;\"><img decoding=\"async\" class=\"rich_pages wxw-img\" data-ratio=\"0.7025440313111546\" data-s=\"300,640\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/9_3RYyANXkMFHLehmmqOwkicPyjRic5A.png?w=640\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/oCSOtP61aEWvVqOBicHvFuDE5TR9k3Dk6fPhynibmibloPR1Mia02ffcuCa2dd3RYyANXkMFHLehmmqOwkicPyjRic5A\/640?wx_fmt=png'\" data-type=\"png\" data-w=\"511\" style=\"vertical-align: middle;width: 100%;\" data-recalc-dims=\"1\" \/><\/section>\n<\/section>\n<section style=\"text-align: center;margin-top: 10px;margin-bottom: 10px;line-height: 0;\" powered-by=\"xiumi.us\">\n<section style=\"vertical-align: middle;display: inline-block;line-height: 0;\"><img decoding=\"async\" class=\"rich_pages wxw-img\" data-ratio=\"0.6589785831960461\" data-s=\"300,640\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/10_2Eb4EhwxnHGBwuTx43LIf11cBpsanw.png?w=640\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/oCSOtP61aEWvVqOBicHvFuDE5TR9k3Dk6pXKybs2lAm7fKjXEbjhm9H1D2Eb4EhwxnHGBwuTx43LIf11cBpsanw\/640?wx_fmt=png'\" data-type=\"png\" data-w=\"607\" style=\"vertical-align: middle;width: 100%;\" data-recalc-dims=\"1\" \/><\/section>\n<\/section>\n<section style=\"text-align: left;justify-content: flex-start;display: flex;flex-flow: row;margin-bottom: 10px;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 100%;vertical-align: top;align-self: flex-start;flex: 0 0 auto;border-style: solid;border-width: 1px;border-color: rgb(145, 184, 175);padding: 23px;\">\n<section style=\"text-align: justify;color: rgb(62, 62, 62);letter-spacing: 0.5px;\" powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2.0625em;text-wrap: wrap;\">\u5728learner\u4e2d\uff0c\u5b58\u5728\u4e00\u79cd\u5df2\u7ecf\u8bbe\u5b9a\u597d\u8d85\u53c2\u6570\u7684\u6a21\u578b\uff0c\u867d\u7136\u8fd9\u79cd\u6a21\u578b\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u901a\u5e38\u4e0d\u4f1a\u53bb\u9009\u62e9\uff0c\u4f46\u5728\u6574\u4e2a\u5efa\u6a21\u7684\u8fc7\u7a0b\u4e2d\u5177\u6709\u91cd\u8981\u7684\u610f\u4e49\u3002\u6211\u4eec\u53eb\u5b83\u57fa\u7ebf\u5b66\u4e60\u8005\uff0c\u57fa\u7ebf\u5b66\u4e60\u8005\u5728\u6a21\u578b\u6bd4\u8f83\u7b49\u6b65\u9aa4\u4e2d\u5177\u6709\u91cd\u8981\u7684\u610f\u4e49\u3002<\/p>\n<\/section>\n<\/section>\n<\/section>\n<section class=\"code-snippet__fix code-snippet__js\">\n<ul class=\"code-snippet__line-index code-snippet__js\">\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<\/ul>\n<pre class=\"code-snippet__js\" data-lang=\"c\"><code><span class=\"code-snippet_outer\">df = as_task_regr(data.frame(x = runif(<span class=\"code-snippet__number\">1000<\/span>), y = rnorm(<span class=\"code-snippet__number\">1000<\/span>, <span class=\"code-snippet__number\">2<\/span>, <span class=\"code-snippet__number\">1<\/span>)), <\/span><\/code><code><span class=\"code-snippet_outer\"> target = <span class=\"code-snippet__string\">\"y\"<\/span>)#\u751f\u6210data <\/span><\/code><code><span class=\"code-snippet_outer\">lrn(<span class=\"code-snippet__string\">\"regr.featureless\"<\/span>)$train(df, <span class=\"code-snippet__number\">1<\/span>:<span class=\"code-snippet__number\">995<\/span>)$predict(df, <span class=\"code-snippet__number\">996<\/span>:<span class=\"code-snippet__number\">1000<\/span>) <\/span><\/code><\/pre>\n<\/section>\n<section style=\"text-align: left;justify-content: flex-start;display: flex;flex-flow: row;margin-bottom: 10px;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 100%;vertical-align: top;align-self: flex-start;flex: 0 0 auto;border-style: solid;border-width: 1px;border-color: rgb(145, 184, 175);padding: 23px;\">\n<section style=\"text-align: justify;color: rgb(62, 62, 62);letter-spacing: 0.5px;\" powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2.0625em;text-wrap: wrap;\">\u4e00\u822c\u6765\u8bf4\uff0c\u6027\u80fd\u6bd4\u57fa\u7ebf\u5b66\u4e60\u8005\u5dee\u7684\uff0c\u6211\u4eec\u8ba4\u4e3a\u662f\u574f\u7684\u6a21\u578b\uff0c\u53e6\u4e00\u65b9\u9762\uff0c\u6027\u80fd\u6bd4\u57fa\u7ebf\u5b66\u4e60\u8005\u597d\u7684\uff0c\u4e0d\u4e00\u5b9a\u662f\u597d\u7684\u6a21\u578b\u3002<\/p>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"text-align: center;justify-content: center;display: flex;flex-flow: row;margin-top: 20px;margin-bottom: 10px;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: auto;vertical-align: top;align-self: flex-start;flex: 0 0 auto;min-width: 5%;height: auto;background-color: rgb(236, 247, 244);padding-right: 26px;padding-left: 26px;\">\n<section style=\"text-align: left;margin-top: -10px;margin-bottom: -24px;line-height: 0;transform: translate3d(-10px, 0px, 0px);\" powered-by=\"xiumi.us\">\n<section style=\"vertical-align: middle;display: inline-block;line-height: 0;width: 54px;height: auto;\"><img decoding=\"async\" data-ratio=\"0.7305555555555555\" data-s=\"300,640\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/2_iawZINSgibFqslChOkNP2o0cE7PsPg.png?w=640\" onerror=\"this.src='\u56fe\u7247\/\u751f\u4fe1\u679c_2023-09-07_\u300c\u8f6c\u300dmlr3\u4e2d\u7684\u673a\u5668\u5b66\u4e60--\u8fdb\u5165\u751f\u7269\u4fe1\u606f\u5b66\u65b0\u65f6\u4ee3\uff083\uff09\/4_iawZINSgibFqslChOkNP2o0cE7PsPg.png\" onerror=\"this.src='\u56fe\u7247\/\u751f\u4fe1\u679c_2023-09-07_\u300c\u8f6c\u300dmlr3\u4e2d\u7684\u673a\u5668\u5b66\u4e60--\u8fdb\u5165\u751f\u7269\u4fe1\u606f\u5b66\u65b0\u65f6\u4ee3\uff083\uff09\/7_iawZINSgibFqslChOkNP2o0cE7PsPg.png\" onerror=\"this.src='\u56fe\u7247\/\u751f\u4fe1\u679c_2023-09-07_\u300c\u8f6c\u300dmlr3\u4e2d\u7684\u673a\u5668\u5b66\u4e60--\u8fdb\u5165\u751f\u7269\u4fe1\u606f\u5b66\u65b0\u65f6\u4ee3\uff083\uff09\/11_iawZINSgibFqslChOkNP2o0cE7PsPg.png\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/oCSOtP61aEWvVqOBicHvFuDE5TR9k3Dk6NOeOaeic6pGKCvrXj9H3R2TBqLmiawZINSgibFqslChOkNP2o0cE7PsPg\/640?wx_fmt=png''''\" data-type=\"png\" data-w=\"1080\" style=\"vertical-align: middle;width: 100%;\" data-recalc-dims=\"1\" \/><\/section>\n<\/section>\n<section style=\"text-align: left;justify-content: flex-start;display: flex;flex-flow: row;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;vertical-align: bottom;width: auto;min-width: 5%;flex: 0 0 auto;height: auto;align-self: flex-end;\">\n<section style=\"\" powered-by=\"xiumi.us\">\n<section style=\"text-align: justify;font-size: 38px;color: rgb(72, 101, 94);\">\n<p style=\"text-align: left;text-wrap: wrap;\"><strong><em>\u4e09<\/em><\/strong><em><span style=\"font-size: 20px;\">#<\/span><\/em><\/p>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: bottom;width: auto;align-self: flex-end;flex: 0 0 auto;min-width: 5%;height: auto;padding-left: 9px;\">\n<section style=\"transform: perspective(0px);transform-style: flat;\" powered-by=\"xiumi.us\">\n<section style=\"text-align: right;transform: rotateX(180deg);margin-bottom: -10px;\">\n<section style=\"display: inline-block;width: 14px;height: 14px;vertical-align: top;overflow: hidden;border-radius: 135px;background-color: rgb(247, 161, 158);\">\n<section style=\"text-align: justify;\" powered-by=\"xiumi.us\">\n<p><br \/><\/p>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"margin-bottom: -7px;\" powered-by=\"xiumi.us\">\n<section style=\"text-align: justify;font-size: 12px;color: rgb(145, 184, 175);\">\n<p style=\"text-align: left;text-wrap: wrap;\"><em>2023<\/em><\/p>\n<\/section>\n<\/section>\n<section style=\"margin-top: 8px;\" powered-by=\"xiumi.us\">\n<section style=\"background-color: rgb(145, 184, 175);height: 1px;\"><svg viewbox=\"0 0 1 1\" style=\"float:left;line-height:0;width:0;vertical-align:top;\"><\/svg><\/section>\n<\/section>\n<section style=\"margin-bottom: 10px;\" powered-by=\"xiumi.us\">\n<section style=\"text-align: justify;color: rgb(145, 184, 175);\">\n<p><strong><em>\u6a21\u578b\u7684\u8bc4\u4ef7<\/em><\/strong><\/p>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"text-align: left;justify-content: flex-start;display: flex;flex-flow: row;margin-bottom: 10px;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 100%;vertical-align: top;align-self: flex-start;flex: 0 0 auto;border-style: solid;border-width: 1px;border-color: rgb(145, 184, 175);padding: 23px;\">\n<section style=\"text-align: justify;color: rgb(62, 62, 62);letter-spacing: 0.5px;\" powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2.0625em;text-wrap: wrap;\">\u5728\u6574\u4e2a\u673a\u5668\u5b66\u4e60\u5de5\u4f5c\u7684\u6d41\u7a0b\u4e2d\uff0c\u6700\u91cd\u8981\u7684\u6b65\u9aa4\u53ef\u80fd\u662f\u6a21\u578b\u7684\u6027\u80fd\u8bc4\u4f30\u3002\u6ca1\u6709\u6027\u80fd\u7684\u8bc4\u4f30\uff0c\u6211\u4eec\u5c06\u65e0\u6cd5\u77e5\u9053\u6240\u8bad\u7ec3\u7684\u6a21\u578b\u662f\u5426\u8fdb\u884c\u4e86\u7cbe\u51c6\u7684\u9884\u6d4b\uff0c\u8fd8\u662f\u6bd4\u968f\u673a\u731c\u6d4b\u66f4\u4e3a\u7cdf\u7cd5\uff0c\u6216\u8005\u4ecb\u4e8e\u4e24\u8005\u4e4b\u95f4\u3002\u5728\u4e0b\u9762\u7684\u4f8b\u5b50\u4e2d\uff0c\u5c0f\u5e08\u59b9\u4ecd\u5c06\u4f7f\u7528\u51b3\u7b56\u6811\u6a21\u578b\u6765\u786e\u5b9a\u9884\u6d4b\u7684\u8d28\u91cf\u662f\u5426\u201c\u826f\u597d\u201d\uff0c\u8fdb\u800c\u5bf9\u6a21\u578b\u7ed9\u51fa\u76f8\u5e94\u7684\u8bc4\u4ef7\u3002<\/p>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"text-align: center;margin-top: 10px;margin-bottom: 10px;line-height: 0;\" powered-by=\"xiumi.us\">\n<section style=\"vertical-align: middle;display: inline-block;line-height: 0;\"><img decoding=\"async\" class=\"rich_pages wxw-img\" data-ratio=\"0.5487944890929966\" data-s=\"300,640\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/12_CNS3TCOdj1eBYHevyibbha8Wl6ibAA.png?w=640\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/oCSOtP61aEWvVqOBicHvFuDE5TR9k3Dk68DqaPrV04QCrMibchAQkibpaUl1ICNS3TCOdj1eBYHevyibbha8Wl6ibAA\/640?wx_fmt=png'\" data-type=\"png\" data-w=\"871\" style=\"vertical-align: middle;width: 100%;\" data-recalc-dims=\"1\" \/><\/section>\n<\/section>\n<section class=\"code-snippet__fix code-snippet__js\">\n<ul class=\"code-snippet__line-index code-snippet__js\">\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<\/ul>\n<pre class=\"code-snippet__js\" data-lang=\"c\"><code><span class=\"code-snippet_outer\">#\u6a21\u578b\u8bc4\u4ef7 <\/span><\/code><code><span class=\"code-snippet_outer\">lrn_rpart = lrn(<span class=\"code-snippet__string\">\"regr.rpart\"<\/span>) <\/span><\/code><code><span class=\"code-snippet_outer\">tsk_mtcars = tsk(<span class=\"code-snippet__string\">\"mtcars\"<\/span>) <\/span><\/code><code><span class=\"code-snippet_outer\">splits = partition(tsk_mtcars) <\/span><\/code><code><span class=\"code-snippet_outer\">lrn_rpart$train(tsk_mtcars, splits$train) <\/span><\/code><code><span class=\"code-snippet_outer\">prediction = lrn_rpart$predict(tsk_mtcars, splits$test) <\/span><\/code><\/pre>\n<\/section>\n<section style=\"text-align: left;justify-content: flex-start;display: flex;flex-flow: row;margin-bottom: 10px;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 100%;vertical-align: top;align-self: flex-start;flex: 0 0 auto;border-style: solid;border-width: 1px;border-color: rgb(145, 184, 175);padding: 23px;\">\n<section style=\"text-align: justify;color: rgb(62, 62, 62);letter-spacing: 0.5px;\" powered-by=\"xiumi.us\">\n<p>\u8bc4\u4ef7\u7684\u51c6\u5219\u901a\u5e38\u6709\u4ee5\u4e0b\u51e0\u79cd\uff1a<\/p>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"text-align: center;margin-top: 10px;margin-bottom: 10px;line-height: 0;\" powered-by=\"xiumi.us\">\n<section style=\"vertical-align: middle;display: inline-block;line-height: 0;\"><img decoding=\"async\" class=\"rich_pages wxw-img\" data-ratio=\"0.587037037037037\" data-s=\"300,640\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/13_Rkpz8blFuRKNMGSf5vvUibX9PibcRw.png?w=640\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/oCSOtP61aEWvVqOBicHvFuDE5TR9k3Dk61ZgDCGe5Dic9WJljSTgM2YDChRwRkpz8blFuRKNMGSf5vvUibX9PibcRw\/640?wx_fmt=png'\" data-type=\"png\" data-w=\"1080\" style=\"vertical-align: middle;width: 100%;\" data-recalc-dims=\"1\" \/><\/section>\n<\/section>\n<section style=\"text-align: left;justify-content: flex-start;display: flex;flex-flow: row;margin-bottom: 10px;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 100%;vertical-align: top;align-self: flex-start;flex: 0 0 auto;border-style: solid;border-width: 1px;border-color: rgb(145, 184, 175);padding: 23px;\">\n<section style=\"text-align: justify;color: rgb(62, 62, 62);letter-spacing: 0.5px;\" powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2.0625em;margin-bottom: 12px;text-wrap: wrap;\">\u5176\u4e2d\uff0c\u5e38\u89c1\u7684aic\u3001bic\u76f8\u4fe1\u5927\u5bb6\u90fd\u6709\u6240\u8033\u95fb\uff0c\u5b9e\u65bd\u7684\u6240\u6709\u63aa\u65bd\u4e3b\u8981\u7531\u4e09\u4e2a\u7ec4\u6210\u90e8\u5206\u5b9a\u4e49\uff1a1\uff09\u5b9a\u4e49\u63aa\u65bd\u7684\u51fd\u6570;2\uff09\u8f83\u4f4e\u6216\u8f83\u9ad8\u7684\u503c\u662f\u5426\u88ab\u89c6\u4e3a\u201c\u826f\u597d\u201d;3\uff09\u63aa\u65bd\u53ef\u4ee5\u91c7\u53d6\u7684\u53ef\u80fd\u503c\u7684\u8303\u56f4\u3002<\/p>\n<p style=\"text-indent: 2.0625em;margin-bottom: 12px;text-wrap: wrap;\">\u5c0f\u5e08\u59b9\u5c06\u5728\u793a\u4f8b\u4e2d\uff0c\u5411\u5927\u5bb6\u6f14\u793a\u901a\u8fc7\u5e73\u5747\u7edd\u5bf9\u8bef\u5dee\uff08MAE\uff09\u6765\u8fdb\u884c\u6a21\u578b\u8bc4\u4f30\uff1a<\/p>\n<p style=\"text-indent: 2.0625em;text-wrap: wrap;\"><br \/><\/p>\n<\/section>\n<\/section>\n<\/section>\n<section class=\"code-snippet__fix code-snippet__js\">\n<ul class=\"code-snippet__line-index code-snippet__js\">\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<\/ul>\n<pre class=\"code-snippet__js\" data-lang=\"c\"><code><span class=\"code-snippet_outer\">#\u8bc4\u4ef7\u51c6\u5219\u5217\u8868 <\/span><\/code><code><span class=\"code-snippet_outer\">as.data.table(msr()) <\/span><\/code><code><span class=\"code-snippet_outer\">measure = msr(<span class=\"code-snippet__string\">\"regr.mae\"<\/span>) <\/span><\/code><code><span class=\"code-snippet_outer\">measure <\/span><\/code><\/pre>\n<\/section>\n<p style=\"text-indent: 2em;text-wrap: wrap;\" powered-by=\"xiumi.us\"><br \/><\/p>\n<section style=\"text-align: center;margin-top: 10px;margin-bottom: 10px;line-height: 0;\" powered-by=\"xiumi.us\">\n<section style=\"vertical-align: middle;display: inline-block;line-height: 0;\"><img decoding=\"async\" class=\"rich_pages wxw-img\" data-ratio=\"0.35634328358208955\" data-s=\"300,640\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/14_TVNqAicHbom7tdJNw2P3mjP5FnGoRQ.png?w=640\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/oCSOtP61aEWvVqOBicHvFuDE5TR9k3Dk6iaff46Qic4srPWz8VsDBhRZjkhETVNqAicHbom7tdJNw2P3mjP5FnGoRQ\/640?wx_fmt=png'\" data-type=\"png\" data-w=\"536\" style=\"vertical-align: middle;width: 100%;\" data-recalc-dims=\"1\" \/><\/section>\n<\/section>\n<section style=\"text-align: left;justify-content: flex-start;display: flex;flex-flow: row;margin-bottom: 10px;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 100%;vertical-align: top;align-self: flex-start;flex: 0 0 auto;border-style: solid;border-width: 1px;border-color: rgb(145, 184, 175);padding: 23px;\">\n<section style=\"text-align: justify;color: rgb(62, 62, 62);letter-spacing: 0.5px;\" powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2.0625em;margin-bottom: 12px;text-wrap: wrap;\">\u5e73\u5747\u7edd\u5bf9\u8bef\u5dee\uff08Mean Absolute Error\uff0c\u7b80\u79f0MAE\uff09\u662f\u673a\u5668\u5b66\u4e60\u548c\u7edf\u8ba1\u5b66\u4e2d\u5e38\u7528\u7684\u5ea6\u91cf\u6807\u51c6\uff0c\u7528\u4e8e\u8861\u91cf\u9884\u6d4b\u503c\u4e0e\u5b9e\u9645\u503c\u4e4b\u95f4\u8bef\u5dee\u7684\u5e73\u5747\u5927\u5c0f\uff0c\u5b83\u63d0\u4f9b\u4e86\u4e00\u79cd\u7b80\u5355\u7684\u65b9\u5f0f\u6765\u91cf\u5316\u9884\u6d4b\u6a21\u578b\u7684\u6574\u4f53\u51c6\u786e\u6027\u3002<\/p>\n<p style=\"text-indent: 2.0625em;margin-bottom: 12px;text-wrap: wrap;\"><br \/><\/p>\n<p style=\"text-indent: 2.0625em;text-wrap: wrap;\">\u5e73\u5747\u7edd\u5bf9\u8bef\u5dee\uff08MAE\uff09\u7684\u8ba1\u7b97\u516c\u5f0f\u5982\u4e0b\uff1a<\/p>\n<\/section>\n<section style=\"text-align: center;margin-top: 10px;margin-bottom: 10px;line-height: 0;\" powered-by=\"xiumi.us\">\n<section style=\"vertical-align: middle;display: inline-block;line-height: 0;\"><img decoding=\"async\" class=\"rich_pages wxw-img\" data-ratio=\"0.27631578947368424\" data-s=\"300,640\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/15_1P3onDVkFse5TN8gKJ7xOAtEvmkEjQ.png?w=640\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/oCSOtP61aEWvVqOBicHvFuDE5TR9k3Dk6qM2VJ86Wya8O9yjFhLxiac02N1P3onDVkFse5TN8gKJ7xOAtEvmkEjQ\/640?wx_fmt=png'\" data-type=\"png\" data-w=\"456\" style=\"vertical-align: middle;width: 100%;\" data-recalc-dims=\"1\" \/><\/section>\n<\/section>\n<section style=\"text-align: justify;color: rgb(62, 62, 62);letter-spacing: 0.5px;\" powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2.0625em;margin-bottom: 12px;text-wrap: wrap;\"><br \/><\/p>\n<p style=\"text-indent: 2.0625em;text-wrap: wrap;\">\u4e0b\u9762\uff0c\u6211\u4eec\u5c06\u8ba1\u7b97\u6a21\u578b\u7684MAE\uff0c\u4e5f\u53ef\u4ee5\u540c\u65f6\u8ba1\u7b97\u591a\u4e2a\u8bc4\u4ef7\u51c6\u5219\uff1a<\/p>\n<\/section>\n<\/section>\n<\/section>\n<section class=\"code-snippet__fix code-snippet__js\">\n<ul class=\"code-snippet__line-index code-snippet__js\">\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<\/ul>\n<pre class=\"code-snippet__js\" data-lang=\"c\"><code><span class=\"code-snippet_outer\">#\u8ba1\u7b97MAE<\/span><\/code><code><span class=\"code-snippet_outer\">prediction$score(measure) <\/span><\/code><code><span class=\"code-snippet_outer\">#\u8ba1\u7b97MAE\u3001MSE<\/span><\/code><code><span class=\"code-snippet_outer\">measures = msrs(c(<span class=\"code-snippet__string\">\"regr.mse\"<\/span>, <span class=\"code-snippet__string\">\"regr.mae\"<\/span>)) <\/span><\/code><code><span class=\"code-snippet_outer\">prediction$score(measures)<\/span><\/code><\/pre>\n<\/section>\n<section style=\"text-align: center;margin-top: 10px;margin-bottom: 10px;line-height: 0;\" powered-by=\"xiumi.us\">\n<section style=\"vertical-align: middle;display: inline-block;line-height: 0;\"><img decoding=\"async\" class=\"rich_pages wxw-img\" data-ratio=\"0.3333333333333333\" data-s=\"300,640\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/16_7wrUCdQTdefSKquldEKeBBWQiaP04A.png?w=640\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/oCSOtP61aEWvVqOBicHvFuDE5TR9k3Dk6CLwRUjqwz8VYkibzyAUQ0iack687wrUCdQTdefSKquldEKeBBWQiaP04A\/640?wx_fmt=png'\" data-type=\"png\" data-w=\"459\" style=\"vertical-align: middle;width: 100%;\" data-recalc-dims=\"1\" \/><\/section>\n<\/section>\n<section style=\"text-align: left;justify-content: flex-start;display: flex;flex-flow: row;margin-bottom: 10px;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 100%;vertical-align: top;align-self: flex-start;flex: 0 0 auto;border-style: solid;border-width: 1px;border-color: rgb(145, 184, 175);padding: 23px;\">\n<section style=\"text-align: justify;color: rgb(62, 62, 62);letter-spacing: 0.5px;\" powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2.0625em;text-wrap: wrap;\">Mlr3\u4e2d\u4e0d\u4ec5\u63d0\u4f9b\u4e86\u6a21\u578b\u9884\u6d4b\u7ed3\u679c\u7684\u8bc4\u4ef7\u51c6\u5219\uff0c\u8fd8\u6709\u4e00\u7cfb\u5217\u8ddf\u6a21\u578b\u6709\u5173\u7684\u5143\u4fe1\u606f\uff1a<\/p>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"text-align: center;margin-top: 10px;margin-bottom: 10px;line-height: 0;\" powered-by=\"xiumi.us\">\n<section style=\"vertical-align: middle;display: inline-block;line-height: 0;\"><img decoding=\"async\" class=\"rich_pages wxw-img\" data-ratio=\"0.32037037037037036\" data-s=\"300,640\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/17_tPWmic0ZicHetho5sfCvrnI7Zw6tBw.png?w=640\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/oCSOtP61aEWvVqOBicHvFuDE5TR9k3Dk6FHzWbsszUwtkatk24gsUTCDSphtPWmic0ZicHetho5sfCvrnI7Zw6tBw\/640?wx_fmt=png'\" data-type=\"png\" data-w=\"1080\" style=\"vertical-align: middle;width: 100%;\" data-recalc-dims=\"1\" \/><\/section>\n<\/section>\n<section powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2em;text-wrap: wrap;\"><br \/><\/p>\n<p style=\"text-indent: 2em;text-wrap: wrap;\"><br \/><\/p>\n<\/section>\n<section style=\"text-align: left;justify-content: flex-start;display: flex;flex-flow: row;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 100%;vertical-align: top;align-self: flex-start;flex: 0 0 auto;border-style: solid;border-width: 0px 0px 0px 1px;border-color: rgb(145, 184, 175);\">\n<section style=\"justify-content: flex-start;display: flex;flex-flow: row;margin-top: -17px;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: auto;vertical-align: top;align-self: flex-start;flex: 0 0 auto;background-color: rgb(236, 247, 244);padding: 6px 19px 5px 84px;min-width: 5%;height: auto;\">\n<section style=\"text-align: right;margin-bottom: -4px;\" powered-by=\"xiumi.us\">\n<section style=\"text-align: justify;font-size: 12px;color: rgb(145, 184, 175);\">\n<p style=\"text-align: right;text-wrap: wrap;\"><em>\u6700\u540e<\/em><\/p>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"justify-content: flex-start;display: flex;flex-flow: row;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 100%;vertical-align: top;align-self: flex-start;flex: 0 0 auto;padding: 26px;\">\n<section style=\"text-align: justify;color: rgb(62, 62, 62);letter-spacing: 0.5px;\" 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