{"id":27497,"date":"2024-02-01T16:53:01","date_gmt":"2024-02-01T08:53:01","guid":{"rendered":"http:\/\/www.biocloudservice.com\/wordpress\/?p=27497"},"modified":"2024-02-01T16:53:02","modified_gmt":"2024-02-01T08:53:02","slug":"%e7%94%9f%e4%bf%a1%e6%95%b0%e6%8d%ae%e5%a4%84%e7%90%86%e5%a5%bd%e5%b8%ae%e6%89%8b%ef%bc%9adplyr%e5%8a%a9%e4%bd%a0%e4%b8%80%e8%87%82%e4%b9%8b%e5%8a%9b%ef%bc%81","status":"publish","type":"post","link":"http:\/\/www.biocloudservice.com\/wordpress\/?p=27497","title":{"rendered":"\u751f\u4fe1\u6570\u636e\u5904\u7406\u597d\u5e2e\u624b\uff1adplyr\u52a9\u4f60\u4e00\u81c2\u4e4b\u529b\uff01"},"content":{"rendered":"<p>\u5728\u751f\u7269\u4fe1\u606f\u5b66\u4e2d\uff0c\u6570\u636e\u5904\u7406\u662f\u975e\u5e38\u91cd\u8981\u7684\u4e00\u73af\u3002\u4e3a\u4e86\u65b9\u4fbf\u8fdb\u884c\u6570\u636e\u64cd\u4f5c\u548c\u5904\u7406\uff0cR\u8bed\u8a00\u63d0\u4f9b\u4e86\u8bb8\u591a\u5f3a\u5927\u7684\u5305\uff0c\u5176\u4e2d\u4e4b\u4e00\u5c31\u662fdplyr\u5305\u3002dplyr\u5305\u662f\u4e00\u4e2a\u529f\u80fd\u5f3a\u5927\u4e14\u6613\u4e8e\u4f7f\u7528\u7684\u6570\u636e\u64cd\u4f5c\u5305\uff0c\u5b83\u63d0\u4f9b\u4e86\u4e00\u7ec4\u7b80\u6d01\u3001\u4e00\u81f4\u4e14\u6613\u4e8e\u8bb0\u5fc6\u7684\u51fd\u6570\uff0c\u7528\u4e8e\u5bf9\u6570\u636e\u8fdb\u884c\u7b5b\u9009\u3001\u6392\u5e8f\u3001\u6574\u7406\u548c\u6c47\u603b\u7b49\u64cd\u4f5c\u3002\u4e0b\u9762\u5c0f\u679c\u5c06\u901a\u8fc7\u4e00\u4e2a\u5b9e\u4f8b\u6765\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528dplyr\u5305\u8fdb\u884c\u6570\u636e\u5904\u7406\uff0c\u611f\u5174\u8da3\u7684\u8bdd\u5c31\u548c\u5c0f\u679c\u4e00\u8d77\u770b\u4e0b\u53bb\u5427\uff01<\/p>\n<p><strong>\u4e86\u89e3dplyr<\/strong><\/p>\n<p>\u5728\u751f\u7269\u4fe1\u606f\u5b66\u4e2d\uff0cdplyr\u5305\u5e38\u5e38\u7528\u4e8e\u5bf9\u57fa\u56e0\u8868\u8fbe\u6570\u636e\u3001\u5355\u7ec6\u80de\u8f6c\u5f55\u7ec4\u6570\u636e\u7b49\u8fdb\u884c\u6570\u636e\u5904\u7406\u548c\u5206\u6790\u3002\u4ee5\u4e0b\u662fdplyr\u5305\u5728\u751f\u7269\u4fe1\u606f\u5b66\u4e2d\u7684\u4e00\u4e9b\u5e38\u89c1\u5e94\u7528\uff1a<\/p>\n<ol>\n<li>\u6570\u636e\u8fc7\u6ee4\uff1a\u4f7f\u7528dplyr\u7684filter()\u51fd\u6570\u53ef\u4ee5\u6839\u636e\u7279\u5b9a\u6761\u4ef6\u7b5b\u9009\u51fa\u611f\u5174\u8da3\u7684\u57fa\u56e0\u6216\u6837\u672c\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u7b5b\u9009\u51fa\u5dee\u5f02\u663e\u8457\u7684\u57fa\u56e0\u6765\u8fdb\u884c\u540e\u7eed\u5206\u6790\u3002<\/li>\n<li>\u6570\u636e\u9009\u62e9\u548c\u91cd\u547d\u540d\uff1a\u4f7f\u7528dplyr\u7684select()\u51fd\u6570\u53ef\u4ee5\u9009\u62e9\u611f\u5174\u8da3\u7684\u5217\uff0c\u6bd4\u5982\u9009\u62e9\u7279\u5b9a\u57fa\u56e0\u7684\u8868\u8fbe\u6c34\u5e73\u3002\u540c\u65f6\uff0c\u8fd8\u53ef\u4ee5\u4f7f\u7528rename()\u51fd\u6570\u5bf9\u5217\u8fdb\u884c\u91cd\u547d\u540d\uff0c\u65b9\u4fbf\u540e\u7eed\u5206\u6790\u548c\u53ef\u89c6\u5316\u3002<\/li>\n<li>\u6570\u636e\u6574\u7406\uff1a\u4f7f\u7528dplyr\u7684mutate()\u51fd\u6570\u53ef\u4ee5\u521b\u5efa\u65b0\u5217\uff0c\u4f8b\u5982\u8ba1\u7b97\u57fa\u56e0\u7684\u8868\u8fbe\u6bd4\u4f8b\u6216\u52a0\u5165\u5176\u4ed6\u6ce8\u91ca\u4fe1\u606f\u3002\u4f7f\u7528arrange()\u51fd\u6570\u53ef\u4ee5\u5bf9\u6570\u636e\u6309\u7279\u5b9a\u5217\u8fdb\u884c\u6392\u5e8f\uff0c\u4f8b\u5982\u6309\u7167\u57fa\u56e0\u8868\u8fbe\u6c34\u5e73\u6392\u5e8f\u3002<\/li>\n<li>\u6570\u636e\u805a\u5408\u548c\u6c47\u603b\uff1a\u4f7f\u7528dplyr\u7684group_by()\u51fd\u6570\u53ef\u4ee5\u5c06\u6570\u636e\u6309\u7167\u7279\u5b9a\u53d8\u91cf\u8fdb\u884c\u5206\u7ec4\uff0c\u7136\u540e\u4f7f\u7528summarize()\u51fd\u6570\u8ba1\u7b97\u6bcf\u4e2a\u7ec4\u7684\u6458\u8981\u7edf\u8ba1\u91cf\uff0c\u5982\u5e73\u5747\u503c\u3001\u4e2d\u4f4d\u6570\u7b49\u3002\u8fd9\u5728\u5206\u6790\u4e0d\u540c\u6761\u4ef6\u4e0b\u7684\u57fa\u56e0\u8868\u8fbe\u5dee\u5f02\u65f6\u975e\u5e38\u6709\u7528\u3002<\/li>\n<li>\u6570\u636e\u5408\u5e76\u548c\u8fde\u63a5\uff1a\u4f7f\u7528dplyr\u7684bind_rows()\u548cbind_cols()\u51fd\u6570\u53ef\u4ee5\u5c06\u4e0d\u540c\u6837\u672c\u6216\u5b9e\u9a8c\u7684\u6570\u636e\u5408\u5e76\u6210\u4e00\u4e2a\u5927\u7684\u6570\u636e\u6846\uff0c\u65b9\u4fbf\u540e\u7eed\u5206\u6790\u3002\u6b64\u5916\uff0c\u4f7f\u7528left_join()\u3001inner_join()\u7b49\u51fd\u6570\u53ef\u4ee5\u6839\u636e\u5171\u4eab\u7684\u5217\u5c06\u591a\u4e2a\u6570\u636e\u6846\u8fde\u63a5\u8d77\u6765\u3002<\/li>\n<\/ol>\n<p>\u8fd9\u53ea\u662fdplyr\u5305\u5728\u751f\u7269\u4fe1\u606f\u5b66\u4e2d\u7684\u4e00\u4e9b\u5e38\u89c1\u5e94\u7528\uff0c\u5b9e\u9645\u4e0a\uff0cdplyr\u8fd8\u63d0\u4f9b\u4e86\u66f4\u591a\u5f3a\u5927\u800c\u7075\u6d3b\u7684\u529f\u80fd\uff0c\u53ef\u4ee5\u5e2e\u52a9\u7814\u7a76\u4eba\u5458\u8fdb\u884c\u9ad8\u6548\u7684\u6570\u636e\u5904\u7406\u548c\u5206\u6790\uff0c\u4ece\u800c\u66f4\u597d\u5730\u7406\u89e3\u548c\u89e3\u91ca\u751f\u7269\u5b66\u6570\u636e\u3002<\/p>\n<p><strong>dplyr\u5904\u7406\u6570\u636e<\/strong><\/p>\n<p><strong>\u52a0\u8f7dR\u5305\u4e0e\u6570\u636e\u51c6\u5907<\/strong><\/p>\n<p>\u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u52a0\u8f7ddplyr\u5305\uff0c\u8fd9\u4e24\u4e2a\u5305\u5305\u542b\u4e86\u8bb8\u591a\u7528\u4e8e\u6570\u636e\u5904\u7406\u7684\u51fd\u6570\u3002<\/p>\n<p>library(dplyr)<\/p>\n<p>\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528dplyr\u5305\u81ea\u5e26\u7684starwars\u6570\u636e\u96c6\u6765\u6f14\u793adplyr\u5305\u7684\u4f7f\u7528\uff0c\u540c\u5b66\u4eec\u53ef\u4ee5\u6839\u636e\u81ea\u5df1\u7684\u5b66\u4e60\u60c5\u51b5\u66ff\u6362\u6210\u81ea\u5df1\u611f\u5174\u8da3\u7684\u6570\u636e\u54e6\uff01<\/p>\n<p>\u6211\u4eec\u53ef\u4ee5\u5148\u6765\u67e5\u770b\u4e00\u4e0bstarwars\u6570\u636e\u96c6\u4e2d\u7684\u6570\u636e\uff1a<\/p>\n<p>starwars<\/p>\n<p>\u67e5\u770bstarwars\u6570\u636e\u96c6\u7684\u7c7b\u578b\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n<p>class(starwars)<\/p>\n<p>\u67e5\u770bstarwars\u6570\u636e\u96c6\u7684\u5b57\u6bb5\u540d\uff1a<\/p>\n<p>colnames(starwars)<\/p>\n<p>\u67e5\u770bstarwars\u6570\u636e\u96c6\u7684\u5927\u5c0f\uff0c\u5373\u884c\u6570\u548c\u5217\u6570\uff1a<\/p>\n<p>dim(starwars)<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" width=\"640\" height=\"133\" class=\"wp-image-27501\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/02\/word-image-27497-1.png?resize=640%2C133\" srcset=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/02\/word-image-27497-1.png?w=1719 1719w, https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/02\/word-image-27497-1.png?resize=300%2C62 300w, https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/02\/word-image-27497-1.png?resize=1024%2C213 1024w, https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/02\/word-image-27497-1.png?resize=768%2C160 768w, https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/02\/word-image-27497-1.png?resize=1536%2C320 1536w, https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/02\/word-image-27497-1.png?resize=600%2C125 600w, https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/02\/word-image-27497-1.png?w=1280 1280w\" sizes=\"(max-width: 640px) 100vw, 640px\" data-recalc-dims=\"1\" \/><\/p>\n<p>\u5728\u751f\u7269\u4fe1\u606f\u5b66\u4e2d\uff0c\u6211\u4eec\u901a\u5e38\u9700\u8981\u5bf9\u6570\u636e\u8fdb\u884c\u7b5b\u9009\u3001\u6392\u5e8f\u548c\u6574\u7406\u7b49\u64cd\u4f5c\u3002\u4e0b\u9762\u5c06\u4ecb\u7ecd\u4e00\u4e9bdplyr\u5305\u4e2d\u5e38\u7528\u7684\u51fd\u6570\u3002<\/p>\n<p><strong>\u7b5b\u9009\u6570\u636e\uff1afilter()<\/strong><\/p>\n<p>\u7b5b\u9009\u6570\u636e\u662f\u6839\u636e\u67d0\u4e9b\u6761\u4ef6\u9009\u62e9\u7279\u5b9a\u884c\u6216\u5217\u7684\u8fc7\u7a0b\u3002\u5728dplyr\u5305\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528filter()\u51fd\u6570\u6765\u7b5b\u9009\u6570\u636e\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u793a\u4f8b\uff1a<\/p>\n<p># \u7b5b\u9009\u51faheight\u4e3a150\u7684\u884c<br \/>\nfilter(starwars, height == 150)<br \/>\n\u200b<br \/>\n# \u7b5b\u9009\u51fasex\u4e3afemale\u7684\u884c<br \/>\nfilter(starwars, sex == &#8216;female&#8217;)<br \/>\n\u200b<br \/>\n# \u7b5b\u9009\u51faskin_color\u4e3alight\u5e76\u4e14height\u7b49\u4e8e150\u7684\u884c<br \/>\nfilter(starwars, skin_color == &#8216;light&#8217; &amp; height == 150)<br \/>\n\u200b<br \/>\n# \u7b5b\u9009\u51faskin_color\u4e3alight\u6216\u8005height\u7b49\u4e8e150\u7684\u884c<br \/>\nfilter(starwars, skin_color == &#8216;light&#8217; | height == 150)<\/p>\n<p><strong><img decoding=\"async\" loading=\"lazy\" width=\"640\" height=\"125\" class=\"wp-image-27502\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/02\/unnamed-file.png?resize=640%2C125\" alt=\"\u6563\u70b9\u56fe\n\n\u63cf\u8ff0\u5df2\u81ea\u52a8\u751f\u6210\" srcset=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/02\/unnamed-file.png?w=1828 1828w, https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/02\/unnamed-file.png?resize=300%2C59 300w, https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/02\/unnamed-file.png?resize=1024%2C200 1024w, https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/02\/unnamed-file.png?resize=768%2C150 768w, https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/02\/unnamed-file.png?resize=1536%2C300 1536w, https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/02\/unnamed-file.png?resize=600%2C117 600w, https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/02\/unnamed-file.png?w=1280 1280w\" sizes=\"(max-width: 640px) 100vw, 640px\" data-recalc-dims=\"1\" \/><\/strong><\/p>\n<p><strong>\u6392\u5e8f\u6570\u636e\uff1aarrange()<\/strong><\/p>\n<p>\u6392\u5e8f\u6570\u636e\u662f\u6839\u636e\u67d0\u4e00\u5217\u7684\u503c\u5bf9\u6570\u636e\u8fdb\u884c\u5347\u5e8f\u6216\u964d\u5e8f\u6392\u5217\u7684\u8fc7\u7a0b\u3002\u5728dplyr\u5305\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528arrange()\u51fd\u6570\u6765\u6392\u5e8f\u6570\u636e\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u793a\u4f8b\uff1a<\/p>\n<p># \u5347\u5e8f\u6392\u5217<br \/>\narrange(starwars, height)<br \/>\n\u200b<br \/>\n# \u964d\u5e8f\u6392\u5217<br \/>\narrange(starwars, -height)<br \/>\n\u200b<br \/>\n# \u964d\u5e8f\u6392\u5217\uff0c\u4f7f\u7528desc()\u51fd\u6570<br \/>\narrange(starwars, desc(height))<\/p>\n<p><strong><img decoding=\"async\" loading=\"lazy\" width=\"640\" height=\"250\" class=\"wp-image-27503\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/02\/unnamed-file-1.png?resize=640%2C250\" alt=\"\u8868\u683c\n\n\u4e2d\u5ea6\u53ef\u4fe1\u5ea6\u63cf\u8ff0\u5df2\u81ea\u52a8\u751f\u6210\" srcset=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/02\/unnamed-file-1.png?w=1812 1812w, https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/02\/unnamed-file-1.png?resize=300%2C117 300w, https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/02\/unnamed-file-1.png?resize=1024%2C400 1024w, https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/02\/unnamed-file-1.png?resize=768%2C300 768w, https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/02\/unnamed-file-1.png?resize=1536%2C599 1536w, https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/02\/unnamed-file-1.png?resize=600%2C234 600w, https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/02\/unnamed-file-1.png?w=1280 1280w\" sizes=\"(max-width: 640px) 100vw, 640px\" data-recalc-dims=\"1\" \/><\/strong><\/p>\n<p><strong><img decoding=\"async\" loading=\"lazy\" width=\"640\" height=\"246\" class=\"wp-image-27504\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/02\/unnamed-file-2.png?resize=640%2C246\" alt=\"\u8868\u683c\n\n\u63cf\u8ff0\u5df2\u81ea\u52a8\u751f\u6210\" srcset=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/02\/unnamed-file-2.png?w=1718 1718w, https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/02\/unnamed-file-2.png?resize=300%2C115 300w, https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/02\/unnamed-file-2.png?resize=1024%2C394 1024w, https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/02\/unnamed-file-2.png?resize=768%2C295 768w, https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/02\/unnamed-file-2.png?resize=1536%2C591 1536w, https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/02\/unnamed-file-2.png?resize=600%2C231 600w, https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/02\/unnamed-file-2.png?w=1280 1280w\" sizes=\"(max-width: 640px) 100vw, 640px\" data-recalc-dims=\"1\" \/><\/strong><\/p>\n<p><strong>\u6574\u7406\u6570\u636e\uff1amutate()<\/strong><\/p>\n<p>\u5728\u751f\u7269\u4fe1\u606f\u5b66\u4e2d\uff0c\u6709\u65f6\u6211\u4eec\u9700\u8981\u6dfb\u52a0\u65b0\u7684\u5217\u6216\u4fee\u6539\u73b0\u6709\u5217\u6765\u8fdb\u884c\u8fdb\u4e00\u6b65\u5206\u6790\u3002\u5728dplyr\u5305\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528mutate()\u51fd\u6570\u6765\u5b9e\u73b0\u8fd9\u4e2a\u529f\u80fd\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u793a\u4f8b\uff1a<\/p>\n<p># \u6dfb\u52a0\u4e24\u5217\uff1aht_m\u5c06\u8eab\u9ad8\u6570\u636e\u9664\u4ee5100\uff0ccolor\u5217\u8fde\u63a5skin_color\u548ceye_color\u4e24\u5217<br \/>\nmutate(starwars, ht_m = height\/100, color = paste(skin_color, eye_color, sep = &#8220;_&#8221;))<br \/>\n\u200b<br \/>\n# \u8ba1\u7b97\u65b0\u5217ht_m\u548ccolor\uff0c\u5e76\u8fd4\u56de\u4ec5\u5305\u542b\u65b0\u5217\u7684\u5bf9\u8c61<br \/>\ntransmute(starwars, ht_m = height\/100, color = paste(skin_color, eye_color, sep = &#8220;_&#8221;))<\/p>\n<p><strong><img decoding=\"async\" loading=\"lazy\" width=\"640\" height=\"118\" class=\"wp-image-27505\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/02\/unnamed-file-3.png?resize=640%2C118\" alt=\"\u6563\u70b9\u56fe\n\n\u63cf\u8ff0\u5df2\u81ea\u52a8\u751f\u6210\" srcset=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/02\/unnamed-file-3.png?w=1928 1928w, https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/02\/unnamed-file-3.png?resize=300%2C55 300w, https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/02\/unnamed-file-3.png?resize=1024%2C189 1024w, https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/02\/unnamed-file-3.png?resize=768%2C142 768w, https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/02\/unnamed-file-3.png?resize=1536%2C284 1536w, https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/02\/unnamed-file-3.png?resize=600%2C111 600w, https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/02\/unnamed-file-3.png?w=1280 1280w\" sizes=\"(max-width: 640px) 100vw, 640px\" data-recalc-dims=\"1\" \/><\/strong><\/p>\n<p><strong>\u6c47\u603b\u6570\u636e\uff1asummarise()<\/strong><\/p>\n<p>\u5728\u751f\u7269\u4fe1\u606f\u5b66\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u9700\u8981\u8ba1\u7b97\u6570\u636e\u7684\u7edf\u8ba1\u91cf\uff0c\u5982\u5747\u503c\u3001\u6807\u51c6\u5dee\u3001\u6700\u5927\u503c\u7b49\u3002\u5728dplyr\u5305\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528summarise()\u51fd\u6570\u6765\u5b9e\u73b0\u8fd9\u4e2a\u529f\u80fd\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u793a\u4f8b\uff1a<\/p>\n<p># \u8fd4\u56de\u6570\u636e\u4e2dheight\u7684\u5747\u503c<br \/>\nsummarise(na.omit(starwars), mean(height))<br \/>\n\u200b<br \/>\n# \u8fd4\u56de\u6570\u636e\u4e2dheight\u7684\u6807\u51c6\u5dee<br \/>\nsummarise(na.omit(starwars), sd(height))<br \/>\n\u200b<br \/>\n# \u8fd4\u56de\u6570\u636e\u4e2dheight\u7684\u6700\u5927\u503c\u548c\u6700\u5c0f\u503c<br \/>\nsummarise(na.omit(starwars), max(height), min(height))<br \/>\n\u200b<br \/>\n# \u8fd4\u56destarwars\u6570\u636e\u6846\u7684\u884c\u6570<br \/>\nsummarise(starwars, n())<br \/>\n\u200b<br \/>\n# \u8fd4\u56desex\u53bb\u91cd\u540e\u7684\u4e2a\u6570<br \/>\nsummarise(starwars, n_distinct(sex))<br \/>\n\u200b<br \/>\n# \u8fd4\u56deheight\u7684\u7b2c\u4e00\u4e2a\u503c<br \/>\nsummarise(starwars, first(height))<br \/>\n\u200b<br \/>\n# \u8fd4\u56deheight\u7684\u6700\u540e\u4e00\u4e2a\u503c<br \/>\nsummarise(starwars, last(height))<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" width=\"640\" height=\"633\" class=\"wp-image-27506\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/02\/unnamed-file-4.png?resize=640%2C633\" alt=\"\u56fe\u5f62\u7528\u6237\u754c\u9762, \u6587\u672c, \u5e94\u7528\u7a0b\u5e8f\n\n\u63cf\u8ff0\u5df2\u81ea\u52a8\u751f\u6210\" srcset=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/02\/unnamed-file-4.png?w=787 787w, https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/02\/unnamed-file-4.png?resize=300%2C297 300w, https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/02\/unnamed-file-4.png?resize=768%2C760 768w, https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/02\/unnamed-file-4.png?resize=600%2C594 600w, https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/02\/unnamed-file-4.png?resize=100%2C100 100w\" sizes=\"(max-width: 640px) 100vw, 640px\" data-recalc-dims=\"1\" \/><\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u4f7f\u7528dplyr\u5305\u8fdb\u884c\u6570\u636e\u5904\u7406\u7684\u4e00\u4e9b\u5e38\u7528\u51fd\u6570\u548c\u793a\u4f8b\u3002\u901a\u8fc7\u5b66\u4e60\u548c\u638c\u63e1\u8fd9\u4e9b\u51fd\u6570\uff0c\u4f60\u53ef\u4ee5\u66f4\u52a0\u65b9\u4fbf\u5730\u5bf9\u751f\u7269\u4fe1\u606f\u5b66\u4e2d\u7684\u6570\u636e\u8fdb\u884c\u6e05\u6d17\u3001\u6574\u7406\u548c\u5206\u6790\u3002\u600e\u4e48\u6837\uff0c\u662f\u4e0d\u662f\u5f88\u7b80\u5355\uff01\u5e0c\u671b\u8fd9\u4e2a\u6559\u7a0b\u5bf9\u4f60\u7406\u89e3dplyr\u5305\u7684\u4f7f\u7528\u548c\u751f\u7269\u4fe1\u606f\u5b66\u7684\u5e94\u7528\u6709\u6240\u5e2e\u52a9\uff0c\u5927\u5bb6\u8d76\u5feb\u5b9e\u64cd\u8d77\u6765\u5427\uff01\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728\u751f\u7269\u4fe1\u606f\u5b66\u4e2d\uff0c\u6570\u636e\u5904\u7406\u662f\u975e\u5e38\u91cd\u8981\u7684\u4e00\u73af\u3002\u4e3a\u4e86\u65b9\u4fbf\u8fdb\u884c\u6570\u636e\u64cd\u4f5c\u548c\u5904\u7406\uff0cR\u8bed\u8a00\u63d0\u4f9b\u4e86\u8bb8\u591a\u5f3a\u5927\u7684\u5305\uff0c\u5176\u4e2d\u4e4b\u4e00\u5c31\u662fd [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":""},"categories":[1],"tags":[],"jetpack_featured_media_url":"","_links":{"self":[{"href":"http:\/\/www.biocloudservice.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/27497"}],"collection":[{"href":"http:\/\/www.biocloudservice.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.biocloudservice.com\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.biocloudservice.com\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.biocloudservice.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=27497"}],"version-history":[{"count":1,"href":"http:\/\/www.biocloudservice.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/27497\/revisions"}],"predecessor-version":[{"id":27509,"href":"http:\/\/www.biocloudservice.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/27497\/revisions\/27509"}],"wp:attachment":[{"href":"http:\/\/www.biocloudservice.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=27497"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.biocloudservice.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=27497"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.biocloudservice.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=27497"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}