{"id":821,"date":"2022-11-08T21:03:17","date_gmt":"2022-12-15T11:51:47","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/index.php\/2023\/11\/30\/r-squared%e5%9c%a8r%e4%b8%ad%e7%9a%84%e8%ae%a1%e7%ae%97%e6%96%b9%e6%b3%95%e6%98%af%e4%bb%80%e4%b9%88%ef%bc%9f\/"},"modified":"2025-08-03T10:49:04","modified_gmt":"2025-08-03T02:49:04","slug":"r-squared%e5%9c%a8r%e4%b8%ad%e7%9a%84%e8%ae%a1%e7%ae%97%e6%96%b9%e6%b3%95%e6%98%af%e4%bb%80%e4%b9%88%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/r-squared%e5%9c%a8r%e4%b8%ad%e7%9a%84%e8%ae%a1%e7%ae%97%e6%96%b9%e6%b3%95%e6%98%af%e4%bb%80%e4%b9%88%ef%bc%9f\/","title":{"rendered":"R\u8bed\u8a00\u8ba1\u7b97R\u5e73\u65b9\u503c\u5b8c\u5168\u6307\u5357\uff1a\u65b9\u6cd5\u4e0e\u5b9e\u4f8b"},"content":{"rendered":"<p>\u5927\u5bb6\u597d\uff0c\u8bfb\u8005\u670b\u53cb\u4eec\uff01\u5728\u8fd9\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u4eec\u5c06\u8981\u4ecb\u7ecd\u673a\u5668\u5b66\u4e60\u4e2d\u7684\u4e00\u4e2a\u91cd\u8981\u6982\u5ff5 &#8211; \u5728R\u7f16\u7a0b\u4e2d\u7684R\u5e73\u65b9\uff08R\u00b2\uff09\u3002<\/p>\n<p>\u6240\u4ee5\uff0c\u8ba9\u6211\u4eec\u5f00\u59cb\u5427\uff01<\/p>\n<hr \/>\n<h2>R\u5e73\u65b9\u8bef\u5dee\u5ea6\u91cf\u7684\u91cd\u8981\u6027<\/h2>\n<p>\u8ba9\u6211\u4eec\u9996\u5148\u4e86\u89e3\u5728\u6570\u636e\u79d1\u5b66\u548c\u673a\u5668\u5b66\u4e60\u9886\u57df\u4e2d\u8bef\u5dee\u5ea6\u91cf\u7684\u91cd\u8981\u6027\uff01<\/p>\n<p>\u8bef\u5dee\u6307\u6807\u4f7f\u6211\u4eec\u80fd\u591f\u8bc4\u4f30\u673a\u5668\u5b66\u4e60\u6a21\u578b\u5728\u7279\u5b9a\u6570\u636e\u96c6\u4e0a\u7684\u8868\u73b0\u3002<\/p>\n<p>\u6839\u636e\u7b97\u6cd5\u7c7b\u522b\uff0c\u5b58\u5728\u5404\u79cd\u4e0d\u540c\u7684\u8bef\u5dee\u5ea6\u91cf\u6a21\u578b\u3002<\/p>\n<p>\u6211\u4eec\u6709\u6df7\u6dc6\u77e9\u9635\u6765\u5904\u7406\u548c\u8bc4\u4f30\u5206\u7c7b\u7b97\u6cd5\u3002\u800cR\u5e73\u65b9\u662f\u4e00\u4e2a\u8bc4\u4f30\u56de\u5f52\u7b97\u6cd5\u9884\u6d4b\u7684\u91cd\u8981\u8bef\u5dee\u5ea6\u91cf\u3002<\/p>\n<p>R\u5e73\u65b9\uff08R\u00b2\uff09\u662f\u4e00\u4e2a\u56de\u5f52\u8bef\u5dee\u5ea6\u91cf\u6307\u6807\uff0c\u7528\u6765\u8bc4\u4f30\u6a21\u578b\u7684\u6027\u80fd\u3002\u5b83\u4ee3\u8868\u4e86\u81ea\u53d8\u91cf\u80fd\u591f\u63cf\u8ff0\u56e0\u53d8\u91cf\u7684\u503c\u7684\u7a0b\u5ea6\u3002<\/p>\n<p>\u56e0\u6b64\uff0cR\u5e73\u65b9\u6a21\u578b\u63cf\u8ff0\u4e86\u76ee\u6807\u53d8\u91cf\u5982\u4f55\u7531\u72ec\u7acb\u53d8\u91cf\u7684\u7ec4\u5408\u4f5c\u4e3a\u4e00\u4e2a\u6574\u4f53\u6765\u89e3\u91ca\u3002<\/p>\n<p>R\u5e73\u65b9\u503c\u7684\u8303\u56f4\u57280\u81f31\u4e4b\u95f4\uff0c\u5e76\u7531\u4e0b\u8ff0\u516c\u5f0f\u8868\u793a\uff1a<\/p>\n<p>R\u00b2 = 1 \u2013 \uff08\u6b8b\u5dee\u5e73\u65b9\u548c\/\u603b\u5e73\u65b9\u548c\uff09<\/p>\n<p>\u8fd9\u91cc\uff1a<\/p>\n<ul class=\"post-ul\">\n<li>SSres\uff1a\u6b8b\u5dee\u5e73\u65b9\u548c<\/li>\n<li>SStot\uff1a\u603b\u5e73\u65b9\u548c<\/li>\n<\/ul>\n<p>\u6c38\u8fdc\u8bb0\u4f4f\uff0cR\u5e73\u65b9\u503c\u8d8a\u9ad8\uff0c\u9884\u6d4b\u6a21\u578b\u5c31\u8d8a\u597d\uff01<\/p>\n<hr \/>\n<h2>\u5728R\u4e2d\u4f7f\u7528\u7ebf\u6027\u56de\u5f52\u7684R\u5e73\u65b9<\/h2>\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u5728\u7ebf\u6027\u56de\u5f52\u6a21\u578b\u4e0a\u5b9e\u65bd\u4e86R\u5e73\u65b9\u8bef\u5dee\u5ea6\u91cf\u7684\u6982\u5ff5\u3002<\/p>\n<ol>\n<li>\u6700\u521d\uff0c\u6211\u4eec\u4f7f\u7528read.csv()\u51fd\u6570\u52a0\u8f7d\u6211\u4eec\u7684\u6570\u636e\u96c6\u3002<\/li>\n<li>\u4e0b\u4e00\u6b65\u662f\u4f7f\u7528createDataPartition()\u65b9\u6cd5\u5c06\u6570\u636e\u5206\u79bb\u6210\u8bad\u7ec3\u96c6\u548c\u6d4b\u8bd5\u96c6\u3002<\/li>\n<li>\u5728\u5efa\u6a21\u4e4b\u524d\uff0c\u6211\u4eec\u5df2\u7ecf\u6307\u5b9a\u4e86\u8bef\u5dee\u6307\u6807\u7684\u81ea\u5b9a\u4e49\u51fd\u6570\uff0c\u5982\u4e0b\u9762\u7684\u793a\u4f8b\u6240\u793a\u3002<\/li>\n<li>\u6700\u540e\u4e00\u6b65\u662f\u4f7f\u7528lm()\u51fd\u6570\u5e94\u7528\u7ebf\u6027\u56de\u5f52\u6a21\u578b\uff0c\u7136\u540e\u6211\u4eec\u8c03\u7528\u4e86\u7528\u6237\u5b9a\u4e49\u7684R\u5e73\u65b9\u51fd\u6570\u6765\u8bc4\u4f30\u6a21\u578b\u7684\u6027\u80fd\u3002<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><span class=\"token comment\"># \u79fb\u9664\u6240\u6709\u73b0\u6709\u5bf9\u8c61<\/span>\r\nrm<span class=\"token punctuation\">(<\/span>list <span class=\"token operator\">=<\/span> ls<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span>\r\n<span class=\"token comment\"># \u8bbe\u7f6e\u5de5\u4f5c\u76ee\u5f55<\/span>\r\nsetwd<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"D:\/Ediwsor_Project - Bike_Rental_Count\/\"<\/span><span class=\"token punctuation\">)<\/span>\r\ngetwd<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\n\r\n<span class=\"token comment\"># \u52a0\u8f7d\u6570\u636e\u96c6<\/span>\r\nbike_data <span class=\"token operator\">=<\/span> read.csv<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"day.csv\"<\/span><span class=\"token punctuation\">,<\/span>header<span class=\"token operator\">=<\/span><span class=\"token boolean\">TRUE<\/span><span class=\"token punctuation\">)<\/span>\r\n\r\n<span class=\"token comment\">### \u6570\u636e\u91c7\u6837 -- \u5c06\u6570\u636e\u5217\u5206\u5272\u4e3a\u8bad\u7ec3\u96c6\u548c\u6d4b\u8bd5\u96c6 ###<\/span>\r\ncategorical_col_updated <span class=\"token operator\">=<\/span> c<span class=\"token punctuation\">(<\/span><span class=\"token string\">'season'<\/span><span class=\"token punctuation\">,<\/span><span class=\"token string\">'yr'<\/span><span class=\"token punctuation\">,<\/span><span class=\"token string\">'mnth'<\/span><span class=\"token punctuation\">,<\/span><span class=\"token string\">'weathersit'<\/span><span class=\"token punctuation\">,<\/span><span class=\"token string\">'holiday'<\/span><span class=\"token punctuation\">)<\/span>\r\nlibrary<span class=\"token punctuation\">(<\/span>dummies<span class=\"token punctuation\">)<\/span>\r\nbike <span class=\"token operator\">=<\/span> bike_data\r\nbike <span class=\"token operator\">=<\/span> dummy.data.frame<span class=\"token punctuation\">(<\/span>bike<span class=\"token punctuation\">,<\/span>categorical_col_updated<span class=\"token punctuation\">)<\/span>\r\ndim<span class=\"token punctuation\">(<\/span>bike<span class=\"token punctuation\">)<\/span>\r\n\r\n<span class=\"token comment\"># \u5c06\u56e0\u53d8\u91cf\u548c\u81ea\u53d8\u91cf\u5206\u79bb\u5230\u4e24\u4e2a\u6570\u636e\u6846\u4e2d<\/span>\r\nlibrary<span class=\"token punctuation\">(<\/span>caret<span class=\"token punctuation\">)<\/span>\r\nset.seed<span class=\"token punctuation\">(<\/span><span class=\"token number\">101<\/span><span class=\"token punctuation\">)<\/span>\r\nsplit_val <span class=\"token operator\">=<\/span> createDataPartition<span class=\"token punctuation\">(<\/span>bike<span class=\"token operator\">$<\/span>cnt<span class=\"token punctuation\">,<\/span> p <span class=\"token operator\">=<\/span> <span class=\"token number\">0.80<\/span><span class=\"token punctuation\">,<\/span> list <span class=\"token operator\">=<\/span> <span class=\"token boolean\">FALSE<\/span><span class=\"token punctuation\">)<\/span> \r\ntrain_data <span class=\"token operator\">=<\/span> bike<span class=\"token punctuation\">[<\/span>split_val<span class=\"token punctuation\">,<\/span><span class=\"token punctuation\">]<\/span>\r\ntest_data <span class=\"token operator\">=<\/span> bike<span class=\"token punctuation\">[<\/span><span class=\"token operator\">-<\/span>split_val<span class=\"token punctuation\">,<\/span><span class=\"token punctuation\">]<\/span>\r\n\r\n<span class=\"token comment\">### \u4f7f\u7528\u673a\u5668\u5b66\u4e60\u7b97\u6cd5\u5bf9\u6570\u636e\u5efa\u6a21 ###<\/span>\r\n<span class=\"token comment\"># \u5b9a\u4e49\u8bef\u5dee\u6307\u6807\u4ee5\u68c0\u67e5\u56de\u5f52\u673a\u5668\u5b66\u4e60\u7b97\u6cd5\u7684\u8bef\u5dee\u7387\u548c\u51c6\u786e\u6027<\/span>\r\n\r\n<span class=\"token comment\"># 1. \u5e73\u5747\u7edd\u5bf9\u767e\u5206\u6bd4\u8bef\u5dee (MAPE)<\/span>\r\nMAPE <span class=\"token operator\">=<\/span> <span class=\"token keyword\">function<\/span><span class=\"token punctuation\">(<\/span>y_actual<span class=\"token punctuation\">,<\/span>y_predict<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span>\r\n  mean<span class=\"token punctuation\">(<\/span>abs<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span>y_actual<span class=\"token operator\">-<\/span>y_predict<span class=\"token punctuation\">)<\/span><span class=\"token operator\">\/<\/span>y_actual<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">*<\/span><span class=\"token number\">100<\/span>\r\n<span class=\"token punctuation\">}<\/span>\r\n\r\n<span class=\"token comment\"># 2. R\u5e73\u65b9\u8bef\u5dee\u6307\u6807 -- \u51b3\u5b9a\u7cfb\u6570<\/span>\r\nRSQUARE <span class=\"token operator\">=<\/span> <span class=\"token keyword\">function<\/span><span class=\"token punctuation\">(<\/span>y_actual<span class=\"token punctuation\">,<\/span>y_predict<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span>\r\n  cor<span class=\"token punctuation\">(<\/span>y_actual<span class=\"token punctuation\">,<\/span>y_predict<span class=\"token punctuation\">)<\/span><span class=\"token operator\">^<\/span><span class=\"token number\">2<\/span>\r\n<span class=\"token punctuation\">}<\/span>\r\n\r\n<span class=\"token comment\">## \u6a21\u578b1\uff1a\u7ebf\u6027\u56de\u5f52<\/span>\r\nlinear_model <span class=\"token operator\">=<\/span> lm<span class=\"token punctuation\">(<\/span>cnt<span class=\"token operator\">~<\/span>.<span class=\"token punctuation\">,<\/span> train_data<span class=\"token punctuation\">)<\/span> <span class=\"token comment\"># \u5728\u6211\u4eec\u7684\u6570\u636e\u96c6\u4e0a\u6784\u5efa\u7ebf\u6027\u56de\u5f52\u6a21\u578b<\/span>\r\nsummary<span class=\"token punctuation\">(<\/span>linear_model<span class=\"token punctuation\">)<\/span>\r\nlinear_predict<span class=\"token operator\">=<\/span>predict<span class=\"token punctuation\">(<\/span>linear_model<span class=\"token punctuation\">,<\/span>test_data<span class=\"token punctuation\">[<\/span><span class=\"token operator\">-<\/span><span class=\"token number\">27<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token comment\"># \u5728\u6d4b\u8bd5\u6570\u636e\u4e0a\u8fdb\u884c\u9884\u6d4b<\/span>\r\n\r\nLR_MAPE <span class=\"token operator\">=<\/span> MAPE<span class=\"token punctuation\">(<\/span>test_data<span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">27<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span>linear_predict<span class=\"token punctuation\">)<\/span> <span class=\"token comment\"># \u4f7f\u7528MAPE\u8bef\u5dee\u6307\u6807\u68c0\u67e5\u8bef\u5dee\u7387\u548c\u51c6\u786e\u5ea6\u6c34\u5e73<\/span>\r\nLR_R <span class=\"token operator\">=<\/span> RSQUARE<span class=\"token punctuation\">(<\/span>test_data<span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">27<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span>linear_predict<span class=\"token punctuation\">)<\/span> <span class=\"token comment\"># \u4f7f\u7528R\u5e73\u65b9\u8bef\u5dee\u6307\u6807\u68c0\u67e5\u8bef\u5dee\u7387\u548c\u51c6\u786e\u5ea6\u6c34\u5e73<\/span>\r\nAccuracy_Linear <span class=\"token operator\">=<\/span> <span class=\"token number\">100<\/span> <span class=\"token operator\">-<\/span> LR_MAPE\r\n\r\nprint<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"MAPE: \"<\/span><span class=\"token punctuation\">)<\/span>\r\nprint<span class=\"token punctuation\">(<\/span>LR_MAPE<span class=\"token punctuation\">)<\/span>\r\nprint<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"R\u5e73\u65b9: \"<\/span><span class=\"token punctuation\">)<\/span>\r\nprint<span class=\"token punctuation\">(<\/span>LR_R<span class=\"token punctuation\">)<\/span>\r\nprint<span class=\"token punctuation\">(<\/span><span class=\"token string\">'\u7ebf\u6027\u56de\u5f52\u51c6\u786e\u5ea6: '<\/span><span class=\"token punctuation\">)<\/span>\r\nprint<span class=\"token punctuation\">(<\/span>Accuracy_Linear<span class=\"token punctuation\">)<\/span>\r\n\r\n<\/code><\/pre>\n<p>\u8f93\u51fa\uff1a<\/p>\n<p>\u5982\u4e0b\u6240\u793a\uff0cR\u5e73\u65b9\u503c\u4e3a0.82\uff0c\u5373\u6a21\u578b\u5bf9\u6211\u4eec\u7684\u6570\u636e\u62df\u5408\u6548\u679c\u826f\u597d\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"token operator\">><\/span> print<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"MAPE: \"<\/span><span class=\"token punctuation\">)<\/span>\r\n<span class=\"token punctuation\">[<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token string\">\"MAPE: \"<\/span>\r\n<span class=\"token operator\">><\/span> print<span class=\"token punctuation\">(<\/span>LR_MAPE<span class=\"token punctuation\">)<\/span>\r\n<span class=\"token punctuation\">[<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token number\">17.61674<\/span>\r\n<span class=\"token operator\">><\/span> print<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"R\u5e73\u65b9: \"<\/span><span class=\"token punctuation\">)<\/span>\r\n<span class=\"token punctuation\">[<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token string\">\"R\u5e73\u65b9: \"<\/span>\r\n<span class=\"token operator\">><\/span> print<span class=\"token punctuation\">(<\/span>LR_R<span class=\"token punctuation\">)<\/span>\r\n<span class=\"token punctuation\">[<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token number\">0.8278258<\/span>\r\n<span class=\"token operator\">><\/span> print<span class=\"token punctuation\">(<\/span><span class=\"token string\">'\u7ebf\u6027\u56de\u5f52\u51c6\u786e\u5ea6: '<\/span><span class=\"token punctuation\">)<\/span>\r\n<span class=\"token punctuation\">[<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token string\">\"\u7ebf\u6027\u56de\u5f52\u51c6\u786e\u5ea6: \"<\/span>\r\n<span class=\"token operator\">><\/span> print<span class=\"token punctuation\">(<\/span>Accuracy_Linear<span class=\"token punctuation\">)<\/span>\r\n<span class=\"token punctuation\">[<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token number\">82.38326<\/span>\r\n<\/code><\/pre>\n<hr \/>\n<h2>II. \u5229\u7528summary()\u51fd\u6570\u8ba1\u7b97R\u5e73\u65b9\u503c<\/h2>\n<p>\u6211\u4eec\u751a\u81f3\u53ef\u4ee5\u5229\u7528R\u4e2d\u7684<code>summary()<\/code>\u51fd\u6570\u5728\u5efa\u6a21\u540e\u63d0\u53d6R\u65b9\u503c\u3002<\/p>\n<p>\u5728\u4e0b\u9762\u7684\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u5bf9\u6211\u4eec\u7684\u6570\u636e\u6846\u5e94\u7528\u4e86\u7ebf\u6027\u56de\u5f52\u6a21\u578b\uff0c\u7136\u540e\u4f7f\u7528<code>summary()$r.squared<\/code>\u6765\u83b7\u53d6R\u5e73\u65b9\u503c\u3002<\/p>\n<p>\u4e3a\u4e86\u66f4\u6e05\u695a\u5730\u8bf4\u660e\uff0c\u4e0b\u9762\u7684\u793a\u4f8b\u5c55\u793a\u4e86\u5982\u4f55\u5728R\u4e2d\u8ba1\u7b97R\u5e73\u65b9\u503c\u3002\u6211\u4eec\u5c06\u521b\u5efa\u4e00\u4e2a\u6570\u636e\u6846\uff0c\u5e94\u7528\u7ebf\u6027\u56de\u5f52\u6a21\u578b\uff0c\u7136\u540e\u4ece\u6a21\u578b\u6458\u8981\u4e2d\u63d0\u53d6R\u5e73\u65b9\u503c\u3002<\/p>\n<pre class=\"post-pre\"><code>rm(list = ls())  # \u6e05\u9664\u5de5\u4f5c\u7a7a\u95f4\u4e2d\u7684\u6240\u6709\u5bf9\u8c61\r\n \r\n# \u521b\u5efa\u5411\u91cf\r\nA <- c(1,2,3,4,2,3,4,1) \r\nB <- c(1,2,3,4,2,3,4,1) \r\na <- c(10,20,30,40,50,60,70,80) \r\nb <- c(100,200,300,400,500,600,700,800) \r\n\r\n# \u521b\u5efa\u6570\u636e\u6846\r\ndata <- data.frame(A,B,a,b) \r\n\r\n# \u6253\u5370\u539f\u59cb\u6570\u636e\u6846\r\nprint(\"\u539f\u59cb\u6570\u636e\u6846:\\n\") \r\nprint(data) \r\n\r\n# \u521b\u5efa\u7ebf\u6027\u56de\u5f52\u6a21\u578b\r\nml = lm(A~a, data = data) \r\n\r\n# \u4ece\u6a21\u578b\u6458\u8981\u4e2d\u63d0\u53d6R\u5e73\u65b9\u503c\r\nsummary(ml)$r.squared \r\n   \r\n<\/code><\/pre>\n<p>\u8f93\u51fa\u7ed3\u679c\uff1a<\/p>\n<pre class=\"post-pre\"><code>[1] \"\u539f\u59cb\u6570\u636e\u6846:\\n\"\r\n  A B  a   b\r\n1 1 1 10 100\r\n2 2 2 20 200\r\n3 3 3 30 300\r\n4 4 4 40 400\r\n5 2 2 50 500\r\n6 3 3 60 600\r\n7 4 4 70 700\r\n8 1 1 80 800\r\n\r\n[1] 0.03809524\r\n<\/code><\/pre>\n<hr \/>\n<h2>\u7ed3\u8bba<\/h2>\n<p>\u901a\u8fc7\u4e0a\u8ff0\u793a\u4f8b\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230\u5728R\u4e2d\u63d0\u53d6R\u5e73\u65b9\u503c\u975e\u5e38\u7b80\u5355\u3002\u4f7f\u7528<code>summary()$r.squared<\/code>\u53ef\u4ee5\u76f4\u63a5\u4ece\u7ebf\u6027\u56de\u5f52\u6a21\u578b\u4e2d\u83b7\u53d6\u8fd9\u4e00\u91cd\u8981\u7edf\u8ba1\u91cf\u3002R\u5e73\u65b9\u503c\uff08\u51b3\u5b9a\u7cfb\u6570\uff09\u5e2e\u52a9\u6211\u4eec\u7406\u89e3\u6a21\u578b\u5bf9\u6570\u636e\u7684\u89e3\u91ca\u7a0b\u5ea6\uff0c\u503c\u8d8a\u63a5\u8fd11\u8868\u793a\u6a21\u578b\u5bf9\u6570\u636e\u7684\u89e3\u91ca\u80fd\u529b\u8d8a\u5f3a\u3002\u5728\u672c\u4f8b\u4e2d\uff0cR\u5e73\u65b9\u503c\u4e3a0.038\uff0c\u8868\u660e\u6a21\u578b\u5bf9\u6570\u636e\u7684\u89e3\u91ca\u80fd\u529b\u8f83\u5f31\u3002<\/p>\n<p>\u901a\u8fc7\u8fd9\u4e2a\u8ba8\u8bba\uff0c\u6211\u4eec\u7684\u8bdd\u9898\u8ba8\u8bba\u5230\u8fd9\u91cc\u7ed3\u675f\u4e86\u3002\u5982\u679c\u60a8\u5728\u8ba8\u8bba\u8fc7\u7a0b\u4e2d\u6709\u4efb\u4f55\u95ee\u9898\uff0c\u8bf7\u968f\u65f6\u5728\u4e0b\u65b9\u7559\u8a00\u3002<\/p>\n<p>\u795d\u60a8\u5b66\u4e60\u6109\u5feb\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5927\u5bb6\u597d\uff0c\u8bfb\u8005\u670b\u53cb\u4eec\uff01\u5728\u8fd9\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u4eec\u5c06\u8981\u4ecb\u7ecd\u673a\u5668\u5b66\u4e60\u4e2d\u7684\u4e00\u4e2a\u91cd\u8981\u6982\u5ff5 &#8211; \u5728R\u7f16\u7a0b\u4e2d\u7684R\u5e73\u65b9\uff08R [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[2169,586,2170,811,809],"class_list":{"0":"post-821","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"hentry","6":"category-uncategorized","7":"tag-r","9":"tag-2170","10":"tag-811","11":"tag-809"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>R\u8bed\u8a00\u8ba1\u7b97R\u5e73\u65b9\u503c\u5b8c\u5168\u6307\u5357\uff1a\u65b9\u6cd5\u4e0e\u5b9e\u4f8b - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"\u672c\u6587\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u5728R\u8bed\u8a00\u4e2d\u8ba1\u7b97R\u5e73\u65b9\u503c\uff0c\u5305\u62ec\u57fa\u7840\u6982\u5ff5\u3001\u8ba1\u7b97\u65b9\u6cd5\u548c\u5b9e\u9645\u5e94\u7528\u6848\u4f8b\u3002\u901a\u8fc7\u6e05\u6670\u7684\u6b65\u9aa4\u8bf4\u660e\u548c\u4ee3\u7801\u793a\u4f8b\uff0c\u5e2e\u52a9\u60a8\u638c\u63e1R\u8bed\u8a00\u7edf\u8ba1\u5206\u6790\u6280\u5de7\uff0c\u63d0\u9ad8\u6570\u636e\u5206\u6790\u80fd\u529b\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/r-squared\u5728r\u4e2d\u7684\u8ba1\u7b97\u65b9\u6cd5\u662f\u4ec0\u4e48\uff1f\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"R\u8bed\u8a00\u8ba1\u7b97R\u5e73\u65b9\u503c\u5b8c\u5168\u6307\u5357\uff1a\u65b9\u6cd5\u4e0e\u5b9e\u4f8b\" \/>\n<meta property=\"og:description\" content=\"\u672c\u6587\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u5728R\u8bed\u8a00\u4e2d\u8ba1\u7b97R\u5e73\u65b9\u503c\uff0c\u5305\u62ec\u57fa\u7840\u6982\u5ff5\u3001\u8ba1\u7b97\u65b9\u6cd5\u548c\u5b9e\u9645\u5e94\u7528\u6848\u4f8b\u3002\u901a\u8fc7\u6e05\u6670\u7684\u6b65\u9aa4\u8bf4\u660e\u548c\u4ee3\u7801\u793a\u4f8b\uff0c\u5e2e\u52a9\u60a8\u638c\u63e1R\u8bed\u8a00\u7edf\u8ba1\u5206\u6790\u6280\u5de7\uff0c\u63d0\u9ad8\u6570\u636e\u5206\u6790\u80fd\u529b\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/r-squared\u5728r\u4e2d\u7684\u8ba1\u7b97\u65b9\u6cd5\u662f\u4ec0\u4e48\uff1f\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2022-12-15T11:51:47+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-08-03T02:49:04+00:00\" \/>\n<meta name=\"author\" content=\"\u6587, \u7fd4\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u6587, \u7fd4\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/r-squared%e5%9c%a8r%e4%b8%ad%e7%9a%84%e8%ae%a1%e7%ae%97%e6%96%b9%e6%b3%95%e6%98%af%e4%bb%80%e4%b9%88%ef%bc%9f\/\",\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/r-squared%e5%9c%a8r%e4%b8%ad%e7%9a%84%e8%ae%a1%e7%ae%97%e6%96%b9%e6%b3%95%e6%98%af%e4%bb%80%e4%b9%88%ef%bc%9f\/\",\"name\":\"R\u8bed\u8a00\u8ba1\u7b97R\u5e73\u65b9\u503c\u5b8c\u5168\u6307\u5357\uff1a\u65b9\u6cd5\u4e0e\u5b9e\u4f8b - Blog - Silicon Cloud\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#website\"},\"datePublished\":\"2022-12-15T11:51:47+00:00\",\"dateModified\":\"2025-08-03T02:49:04+00:00\",\"author\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/64d5cc7727fffbff2f9a2a8da1de3e5c\"},\"description\":\"\u672c\u6587\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u5728R\u8bed\u8a00\u4e2d\u8ba1\u7b97R\u5e73\u65b9\u503c\uff0c\u5305\u62ec\u57fa\u7840\u6982\u5ff5\u3001\u8ba1\u7b97\u65b9\u6cd5\u548c\u5b9e\u9645\u5e94\u7528\u6848\u4f8b\u3002\u901a\u8fc7\u6e05\u6670\u7684\u6b65\u9aa4\u8bf4\u660e\u548c\u4ee3\u7801\u793a\u4f8b\uff0c\u5e2e\u52a9\u60a8\u638c\u63e1R\u8bed\u8a00\u7edf\u8ba1\u5206\u6790\u6280\u5de7\uff0c\u63d0\u9ad8\u6570\u636e\u5206\u6790\u80fd\u529b\u3002\",\"breadcrumb\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/r-squared%e5%9c%a8r%e4%b8%ad%e7%9a%84%e8%ae%a1%e7%ae%97%e6%96%b9%e6%b3%95%e6%98%af%e4%bb%80%e4%b9%88%ef%bc%9f\/#breadcrumb\"},\"inLanguage\":\"zh-Hans\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.silicloud.com\/zh\/blog\/r-squared%e5%9c%a8r%e4%b8%ad%e7%9a%84%e8%ae%a1%e7%ae%97%e6%96%b9%e6%b3%95%e6%98%af%e4%bb%80%e4%b9%88%ef%bc%9f\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/r-squared%e5%9c%a8r%e4%b8%ad%e7%9a%84%e8%ae%a1%e7%ae%97%e6%96%b9%e6%b3%95%e6%98%af%e4%bb%80%e4%b9%88%ef%bc%9f\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.silicloud.com\/zh\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"R\u8bed\u8a00\u8ba1\u7b97R\u5e73\u65b9\u503c\u5b8c\u5168\u6307\u5357\uff1a\u65b9\u6cd5\u4e0e\u5b9e\u4f8b\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#website\",\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/\",\"name\":\"Blog - Silicon Cloud\",\"description\":\"\",\"inLanguage\":\"zh-Hans\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/64d5cc7727fffbff2f9a2a8da1de3e5c\",\"name\":\"\u6587, \u7fd4\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/920c3d673e0bccacc98e5e6b7149bb3c22edd8d39cb753e5d7d7e471498118a1?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/920c3d673e0bccacc98e5e6b7149bb3c22edd8d39cb753e5d7d7e471498118a1?s=96&d=mm&r=g\",\"caption\":\"\u6587, \u7fd4\"},\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/author\/wenxiang\/\"},{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/r-squared%e5%9c%a8r%e4%b8%ad%e7%9a%84%e8%ae%a1%e7%ae%97%e6%96%b9%e6%b3%95%e6%98%af%e4%bb%80%e4%b9%88%ef%bc%9f\/#local-main-organization-logo\",\"url\":\"\",\"contentUrl\":\"\",\"caption\":\"Blog - Silicon Cloud\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"R\u8bed\u8a00\u8ba1\u7b97R\u5e73\u65b9\u503c\u5b8c\u5168\u6307\u5357\uff1a\u65b9\u6cd5\u4e0e\u5b9e\u4f8b - Blog - Silicon Cloud","description":"\u672c\u6587\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u5728R\u8bed\u8a00\u4e2d\u8ba1\u7b97R\u5e73\u65b9\u503c\uff0c\u5305\u62ec\u57fa\u7840\u6982\u5ff5\u3001\u8ba1\u7b97\u65b9\u6cd5\u548c\u5b9e\u9645\u5e94\u7528\u6848\u4f8b\u3002\u901a\u8fc7\u6e05\u6670\u7684\u6b65\u9aa4\u8bf4\u660e\u548c\u4ee3\u7801\u793a\u4f8b\uff0c\u5e2e\u52a9\u60a8\u638c\u63e1R\u8bed\u8a00\u7edf\u8ba1\u5206\u6790\u6280\u5de7\uff0c\u63d0\u9ad8\u6570\u636e\u5206\u6790\u80fd\u529b\u3002","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.silicloud.com\/zh\/blog\/r-squared\u5728r\u4e2d\u7684\u8ba1\u7b97\u65b9\u6cd5\u662f\u4ec0\u4e48\uff1f\/","og_locale":"zh_CN","og_type":"article","og_title":"R\u8bed\u8a00\u8ba1\u7b97R\u5e73\u65b9\u503c\u5b8c\u5168\u6307\u5357\uff1a\u65b9\u6cd5\u4e0e\u5b9e\u4f8b","og_description":"\u672c\u6587\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u5728R\u8bed\u8a00\u4e2d\u8ba1\u7b97R\u5e73\u65b9\u503c\uff0c\u5305\u62ec\u57fa\u7840\u6982\u5ff5\u3001\u8ba1\u7b97\u65b9\u6cd5\u548c\u5b9e\u9645\u5e94\u7528\u6848\u4f8b\u3002\u901a\u8fc7\u6e05\u6670\u7684\u6b65\u9aa4\u8bf4\u660e\u548c\u4ee3\u7801\u793a\u4f8b\uff0c\u5e2e\u52a9\u60a8\u638c\u63e1R\u8bed\u8a00\u7edf\u8ba1\u5206\u6790\u6280\u5de7\uff0c\u63d0\u9ad8\u6570\u636e\u5206\u6790\u80fd\u529b\u3002","og_url":"https:\/\/www.silicloud.com\/zh\/blog\/r-squared\u5728r\u4e2d\u7684\u8ba1\u7b97\u65b9\u6cd5\u662f\u4ec0\u4e48\uff1f\/","og_site_name":"Blog - Silicon Cloud","article_published_time":"2022-12-15T11:51:47+00:00","article_modified_time":"2025-08-03T02:49:04+00:00","author":"\u6587, \u7fd4","twitter_card":"summary_large_image","twitter_misc":{"\u4f5c\u8005":"\u6587, \u7fd4","\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4":"1 \u5206"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.silicloud.com\/zh\/blog\/r-squared%e5%9c%a8r%e4%b8%ad%e7%9a%84%e8%ae%a1%e7%ae%97%e6%96%b9%e6%b3%95%e6%98%af%e4%bb%80%e4%b9%88%ef%bc%9f\/","url":"https:\/\/www.silicloud.com\/zh\/blog\/r-squared%e5%9c%a8r%e4%b8%ad%e7%9a%84%e8%ae%a1%e7%ae%97%e6%96%b9%e6%b3%95%e6%98%af%e4%bb%80%e4%b9%88%ef%bc%9f\/","name":"R\u8bed\u8a00\u8ba1\u7b97R\u5e73\u65b9\u503c\u5b8c\u5168\u6307\u5357\uff1a\u65b9\u6cd5\u4e0e\u5b9e\u4f8b - Blog - Silicon Cloud","isPartOf":{"@id":"https:\/\/www.silicloud.com\/zh\/blog\/#website"},"datePublished":"2022-12-15T11:51:47+00:00","dateModified":"2025-08-03T02:49:04+00:00","author":{"@id":"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/64d5cc7727fffbff2f9a2a8da1de3e5c"},"description":"\u672c\u6587\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u5728R\u8bed\u8a00\u4e2d\u8ba1\u7b97R\u5e73\u65b9\u503c\uff0c\u5305\u62ec\u57fa\u7840\u6982\u5ff5\u3001\u8ba1\u7b97\u65b9\u6cd5\u548c\u5b9e\u9645\u5e94\u7528\u6848\u4f8b\u3002\u901a\u8fc7\u6e05\u6670\u7684\u6b65\u9aa4\u8bf4\u660e\u548c\u4ee3\u7801\u793a\u4f8b\uff0c\u5e2e\u52a9\u60a8\u638c\u63e1R\u8bed\u8a00\u7edf\u8ba1\u5206\u6790\u6280\u5de7\uff0c\u63d0\u9ad8\u6570\u636e\u5206\u6790\u80fd\u529b\u3002","breadcrumb":{"@id":"https:\/\/www.silicloud.com\/zh\/blog\/r-squared%e5%9c%a8r%e4%b8%ad%e7%9a%84%e8%ae%a1%e7%ae%97%e6%96%b9%e6%b3%95%e6%98%af%e4%bb%80%e4%b9%88%ef%bc%9f\/#breadcrumb"},"inLanguage":"zh-Hans","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.silicloud.com\/zh\/blog\/r-squared%e5%9c%a8r%e4%b8%ad%e7%9a%84%e8%ae%a1%e7%ae%97%e6%96%b9%e6%b3%95%e6%98%af%e4%bb%80%e4%b9%88%ef%bc%9f\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.silicloud.com\/zh\/blog\/r-squared%e5%9c%a8r%e4%b8%ad%e7%9a%84%e8%ae%a1%e7%ae%97%e6%96%b9%e6%b3%95%e6%98%af%e4%bb%80%e4%b9%88%ef%bc%9f\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/www.silicloud.com\/zh\/blog\/"},{"@type":"ListItem","position":2,"name":"R\u8bed\u8a00\u8ba1\u7b97R\u5e73\u65b9\u503c\u5b8c\u5168\u6307\u5357\uff1a\u65b9\u6cd5\u4e0e\u5b9e\u4f8b"}]},{"@type":"WebSite","@id":"https:\/\/www.silicloud.com\/zh\/blog\/#website","url":"https:\/\/www.silicloud.com\/zh\/blog\/","name":"Blog - Silicon Cloud","description":"","inLanguage":"zh-Hans"},{"@type":"Person","@id":"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/64d5cc7727fffbff2f9a2a8da1de3e5c","name":"\u6587, \u7fd4","image":{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/920c3d673e0bccacc98e5e6b7149bb3c22edd8d39cb753e5d7d7e471498118a1?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/920c3d673e0bccacc98e5e6b7149bb3c22edd8d39cb753e5d7d7e471498118a1?s=96&d=mm&r=g","caption":"\u6587, \u7fd4"},"url":"https:\/\/www.silicloud.com\/zh\/blog\/author\/wenxiang\/"},{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.silicloud.com\/zh\/blog\/r-squared%e5%9c%a8r%e4%b8%ad%e7%9a%84%e8%ae%a1%e7%ae%97%e6%96%b9%e6%b3%95%e6%98%af%e4%bb%80%e4%b9%88%ef%bc%9f\/#local-main-organization-logo","url":"","contentUrl":"","caption":"Blog - Silicon Cloud"}]}},"_links":{"self":[{"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/posts\/821","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/comments?post=821"}],"version-history":[{"count":4,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/posts\/821\/revisions"}],"predecessor-version":[{"id":110742,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/posts\/821\/revisions\/110742"}],"wp:attachment":[{"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/media?parent=821"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/categories?post=821"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/tags?post=821"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}