{"id":2201,"date":"2022-08-07T10:16:58","date_gmt":"2022-08-07T04:16:58","guid":{"rendered":"http:\/\/www.jichangqing.net\/wordpress\/?p=2201"},"modified":"2022-08-07T10:16:58","modified_gmt":"2022-08-07T04:16:58","slug":"python%e6%95%b0%e6%8d%ae%e7%a7%91%e5%ad%a6%ef%bc%9alogistic%e5%9b%9e%e5%bd%92","status":"publish","type":"post","link":"http:\/\/www.jichangqing.net\/wordpress\/?p=2201","title":{"rendered":"Python\u6570\u636e\u79d1\u5b66\uff1aLogistic\u56de\u5f52"},"content":{"rendered":"<div class=\"col-2-article-header\">\n<h1 class=\"article-title J-articleTitle\" style=\"color: #000000;\">Python\u6570\u636e\u79d1\u5b66\uff1aLogistic\u56de\u5f52<\/h1>\n<div class=\"article-infos-wrap\">\n<div class=\"article-infos\"><\/div>\n<\/div>\n<\/div>\n<div class=\"com-markdown-collpase\">\n<div class=\"com-markdown-collpase-main\">\n<div class=\"rno-markdown J-articleContent rno-\">\n<p>\u597d\u4e45\u6ca1\u5199\u6570\u636e\u6316\u6398\u8fd9\u5757\u7684\u5185\u5bb9\u4e86\uff0c\u8fd9\u4e00\u671f\u5c31\u63a5\u7740\u6765\u8bb2\u8bb2\u3002<\/p>\n<p>\u5b66\u4e60\u4e00\u4e0b\u903b\u8f91\u56de\u5f52\u6a21\u578b\u3002<\/p>\n<figure>\n<div class=\"image-block\"><img decoding=\"async\" src=\"https:\/\/ask.qcloudimg.com\/http-save\/yehe-6291251\/x1smjc90ar.jpeg?imageView2\/2\/w\/1620\" alt=\"\" \/><\/div>\n<\/figure>\n<p>\u4ece\u4e0a\u56fe\u6211\u4eec\u53ef\u77e5\uff0c\u903b\u8f91\u56de\u5f52\u6a21\u578b\u591a\u7528\u4e8e\u56e0\u53d8\u91cf\u4e3a\u5206\u7c7b\u53d8\u91cf\u7684\u60c5\u51b5\u3002<\/p>\n<p>\u6240\u4ee5\u672c\u6b21\u7684\u6570\u636e\u9884\u6d4b\uff0c\u4e5f\u9009\u53d6\u7684\u662f\u4e00\u4e2a\u4e8c\u5206\u7c7b\u53d8\u91cf(\u662f\u5426\u8fdd\u7ea6)\u3002<\/p>\n<p><strong>\/ 01 \/ Logistic\u56de\u5f52<\/strong><\/p>\n<p>Logistic\u56de\u5f52\u901a\u8fc7logit\u8f6c\u6362\u5c06\u53d6\u503c\u4e3a\u6b63\u8d1f\u65e0\u7a77\u7684\u7ebf\u6027\u65b9\u7a0b\u7684\u503c\u57df\u8f6c\u5316\u4e3a(0\uff0c1)\uff0c\u6b63\u597d\u4e0e\u6982\u7387\u7684\u53d6\u503c\u8303\u56f4\u4e00\u81f4\u3002<\/p>\n<p>\u5177\u4f53\u516c\u5f0f\u5c31\u4e0d\u5217\u4e3e\u4e86\uff0c\u6b64\u5904\u70b9\u5230\u4e3a\u6b62\u3002<\/p>\n<p>\u60f3\u4e86\u89e3\u66f4\u591a\uff0c\u53ef\u4ee5\u67e5\u9605\u76f8\u5173\u8d44\u6599\u6216\u4e66\u7c4d\u3002<\/p>\n<p>Logistic\u56de\u5f52\u662f\u901a\u8fc7\u6784\u5efalogit\u53d8\u6362\uff0c\u4ece\u800c\u8fdb\u884c\u6982\u7387\u9884\u6d4b\u3002<\/p>\n<p>\u7ebf\u6027\u56de\u5f52\u540c\u6837\u4e5f\u662f\u4e00\u79cd\u9884\u6d4b\u65b9\u6cd5\u3002<\/p>\n<p>\u4f46\u662fLogistic\u56de\u5f52\u9002\u5408\u9884\u6d4b\u5206\u7c7b\u53d8\u91cf\uff0c\u800c\u4e14\u9884\u6d4b\u7684\u662f\u4e00\u4e2a\u533a\u95f40\u52301\u7684\u6982\u7387\u3002<\/p>\n<p>\u800c\u7ebf\u6027\u56de\u5f52\u5219\u9002\u5408\u7684\u662f\u9884\u6d4b\u8fde\u7eed\u578b\u53d8\u91cf\u3002<\/p>\n<p>\u6b64\u5916\u5982\u679c\u9047\u5230\u591a\u5143\u76ee\u6807\u53d8\u91cf\u65f6\uff0cLogistic\u56de\u5f52\u4e5f\u80fd\u591f\u8fdb\u884c\u9884\u6d4b\u3002<\/p>\n<p>\u4f46\u66f4\u591a\u7684\u65f6\u5019\uff0c\u5206\u6790\u5e08\u66f4\u503e\u5411\u4e8e\u6839\u636e\u4e1a\u52a1\u7684\u7406\u89e3\u5c06\u591a\u5143\u76ee\u6807\u53d8\u91cf\u6574\u5408\u4e3a\u4e8c\u5143\u76ee\u6807\u53d8\u91cf\uff0c\u7136\u540e\u8fdb\u884cLogistic\u56de\u5f52(\u5982\u82e5\u53ef\u884c)\u3002<\/p>\n<p>Logistic\u56de\u5f52\u9884\u6d4b\u7684\u662f\u4e8b\u4ef6\u7684\u6982\u7387\uff0c\u4f7f\u7528\u6700\u5927\u4f3c\u7136\u4f30\u8ba1\u5bf9\u6982\u7387\u8fdb\u884c\u53c2\u6570\u4f30\u8ba1\u3002<\/p>\n<p><strong>\/ 02\/ Python\u5b9e\u73b0<\/strong><\/p>\n<p>\u60ef\u4f8b\uff0c\u7ee7\u7eed\u4f7f\u7528\u4e66\u4e2d\u63d0\u4f9b\u7684\u6570\u636e\u3002<\/p>\n<p>\u4e00\u4efd\u6c7d\u8f66\u8fdd\u7ea6\u8d37\u6b3e\u6570\u636e\u96c6\u3002<\/p>\n<p>\u6d89\u53ca\u5230\u7684\u53d8\u91cf\u6709\u300c\u662f\u5426\u8fdd\u7ea6\u300d\u300c\u66fe\u7ecf\u7834\u4ea7\u6807\u8bc6\u300d\u300c\u4e94\u5e74\u5185\u4fe1\u7528\u4e0d\u826f\u4e8b\u4ef6\u6570\u91cf\u300d\u300c\u6700\u4e45\u8d26\u6237\u5b58\u7eed\u65f6\u95f4\u300d\u300c\u53ef\u5faa\u73af\u8d37\u6b3e\u8d26\u6237\u4f7f\u7528\u6bd4\u4f8b\u300d\u300cFICO\u6253\u5206\u300d\u300c\u8d37\u6b3e\u91d1\u989d\/\u5efa\u8bae\u552e\u4ef7*100\u300d\u300c\u884c\u9a76\u91cc\u7a0b\u300d\u3002<\/p>\n<p>\u8bfb\u53d6\u6570\u636e\uff0c\u5e76\u5bf9\u6570\u636e\u8fdb\u884c\u62bd\u6837\uff0c\u8bad\u7ec3\u96c6\u548c\u6d4b\u8bd5\u96c6\u6bd4\u4f8b\u4e3a7:3\u3002<\/p>\n<div class=\"developer-code-block\">\n<pre class=\"prism-token token line-numbers language-javascript\" style=\"color: #cccccc;\" tabindex=\"0\"><code class=\"language-javascript\"><span class=\"token keyword\" style=\"color: #cc99cd;\">import<\/span> numpy <span class=\"token keyword\" style=\"color: #cc99cd;\">as<\/span> np\r\n<span class=\"token keyword\" style=\"color: #cc99cd;\">import<\/span> pandas <span class=\"token keyword\" style=\"color: #cc99cd;\">as<\/span> pd\r\n<span class=\"token keyword\" style=\"color: #cc99cd;\">import<\/span> statsmodels<span class=\"token punctuation\">.<\/span>api <span class=\"token keyword\" style=\"color: #cc99cd;\">as<\/span> sm\r\n<span class=\"token keyword\" style=\"color: #cc99cd;\">import<\/span> matplotlib<span class=\"token punctuation\">.<\/span>pyplot <span class=\"token keyword\" style=\"color: #cc99cd;\">as<\/span> plt\r\n<span class=\"token keyword\" style=\"color: #cc99cd;\">import<\/span> sklearn<span class=\"token punctuation\">.<\/span>metrics <span class=\"token keyword\" style=\"color: #cc99cd;\">as<\/span> metrics\r\n<span class=\"token keyword\" style=\"color: #cc99cd;\">import<\/span> statsmodels<span class=\"token punctuation\">.<\/span>formula<span class=\"token punctuation\">.<\/span>api <span class=\"token keyword\" style=\"color: #cc99cd;\">as<\/span> smf\r\n\r\n# \u6d88\u9664pandas\u8f93\u51fa\u7701\u7565\u53f7\u60c5\u51b5\r\npd<span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">set_option<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\" style=\"color: #7ec699;\">'display.max_columns'<\/span><span class=\"token punctuation\">,<\/span> None<span class=\"token punctuation\">)<\/span>\r\n# \u8bfb\u53d6\u6570\u636e<span class=\"token punctuation\">,<\/span><span class=\"token literal-property property\" style=\"color: #f8c555;\">skipinitialspace<\/span><span class=\"token operator\" style=\"color: #67cdcc;\">:<\/span>\u5ffd\u7565\u5206\u9694\u7b26\u540e\u7684\u7a7a\u767d\r\naccepts <span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span> pd<span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">read_csv<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\" style=\"color: #7ec699;\">'accepts.csv'<\/span><span class=\"token punctuation\">,<\/span> skipinitialspace<span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span>True<span class=\"token punctuation\">)<\/span>\r\n# dropna<span class=\"token operator\" style=\"color: #67cdcc;\">:<\/span>\u5bf9\u7f3a\u5931\u7684\u6570\u636e\u8fdb\u884c\u5220\u9664\r\naccepts <span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span> accepts<span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">dropna<\/span><span class=\"token punctuation\">(<\/span>axis<span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span><span class=\"token number\" style=\"color: #f08d49;\">0<\/span><span class=\"token punctuation\">,<\/span> how<span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span><span class=\"token string\" style=\"color: #7ec699;\">'any'<\/span><span class=\"token punctuation\">)<\/span>\r\n# frac\u62bd\u6837\u6bd4\u4f8b<span class=\"token punctuation\">,<\/span>\u4e3a<span class=\"token number\" style=\"color: #f08d49;\">70<\/span><span class=\"token operator\" style=\"color: #67cdcc;\">%<\/span>\r\ntrain <span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span> accepts<span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">sample<\/span><span class=\"token punctuation\">(<\/span>frac<span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span><span class=\"token number\" style=\"color: #f08d49;\">0.7<\/span><span class=\"token punctuation\">,<\/span> random_state<span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span><span class=\"token number\" style=\"color: #f08d49;\">1234<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">copy<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\ntest <span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span> accepts<span class=\"token punctuation\">[<\/span><span class=\"token operator\" style=\"color: #67cdcc;\">~<\/span> accepts<span class=\"token punctuation\">.<\/span>index<span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">isin<\/span><span class=\"token punctuation\">(<\/span>train<span class=\"token punctuation\">.<\/span>index<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">copy<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\n<span class=\"token function\" style=\"color: #f08d49;\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\" style=\"color: #7ec699;\">'\u8bad\u7ec3\u96c6\u6837\u672c\u91cf: %i \\n\u6d4b\u8bd5\u96c6\u6837\u672c\u5bb9\u91cf: %i'<\/span> <span class=\"token operator\" style=\"color: #67cdcc;\">%<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token function\" style=\"color: #f08d49;\">len<\/span><span class=\"token punctuation\">(<\/span>train<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token function\" style=\"color: #f08d49;\">len<\/span><span class=\"token punctuation\">(<\/span>test<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><\/code><\/pre>\n<p><button class=\"copy\" style=\"color: #ffffff;\">\u590d\u5236<\/button><\/div>\n<p>\u7ecf\u8fc7\u6211\u7684\u4e00\u756a\u5b9e\u8df5\uff0c\u53d1\u73b0\u62bd\u53d6\u6bd4\u4f8b\u4e0d\u540c\uff0c\u4f1a\u5bfc\u81f4\u6700\u540e\u7684\u7ed3\u679c\u4e5f\u6709\u6240\u4e0d\u540c\u3002<\/p>\n<p>\u6b64\u5916\u4e0a\u8ff0\u4f7f\u7528\u7684\u662f\u968f\u673a\u62bd\u6837\uff0c\u4f1a\u51fa\u73b0\u62bd\u53d6\u7684\u8bad\u7ec3\u96c6\u548c\u6d4b\u8bd5\u96c6\u5f53\u4e2d\u7684\u8fdd\u7ea6\u6bd4\u4f8b\u4e0d\u4e00\u6837\u7684\u60c5\u51b5\u3002<\/p>\n<p>\u6240\u4ee5\u8fd8\u53ef\u4ee5\u8003\u8651\u4e00\u4e0b\u5206\u5c42\u62bd\u6837\uff0c\u4fdd\u8bc1\u56fa\u5b9a\u6bd4\u4f8b\u62bd\u53d6\u6837\u672c\u3002<\/p>\n<p>\u63a5\u4e0b\u6765\u4f7f\u7528\u5e7f\u4e49\u7ebf\u6027\u56de\u5f52\uff0c\u4e14\u6307\u5b9a\u4f7f\u7528logit\u53d8\u6362\u5bf9\u6570\u636e\u8fdb\u884c\u5904\u7406\u3002<\/p>\n<div class=\"developer-code-block\">\n<pre class=\"prism-token token line-numbers language-javascript\" style=\"color: #cccccc;\" tabindex=\"0\"><code class=\"language-javascript\">lg <span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span> smf<span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">glm<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\" style=\"color: #7ec699;\">'bad_ind ~ fico_score'<\/span><span class=\"token punctuation\">,<\/span> data<span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span>train<span class=\"token punctuation\">,<\/span> family<span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span>sm<span class=\"token punctuation\">.<\/span>families<span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">Binomial<\/span><span class=\"token punctuation\">(<\/span>sm<span class=\"token punctuation\">.<\/span>families<span class=\"token punctuation\">.<\/span>links<span class=\"token punctuation\">.<\/span>logit<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">fit<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\n<span class=\"token function\" style=\"color: #f08d49;\">print<\/span><span class=\"token punctuation\">(<\/span>lg<span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">summary<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><\/code><\/pre>\n<p><button class=\"copy\" style=\"color: #ffffff;\">\u590d\u5236<\/button><\/div>\n<p>\u9488\u5bf9FICO\u8bc4\u5206\u5f97\u5230\u7684\u903b\u8f91\u56de\u5f52\u7ed3\u679c\u3002<\/p>\n<figure>\n<div class=\"image-block\"><img decoding=\"async\" src=\"https:\/\/ask.qcloudimg.com\/http-save\/yehe-6291251\/nnt25o94lr.png?imageView2\/2\/w\/1620\" alt=\"\" \/><\/div>\n<\/figure>\n<p>\u5f97\u5230\u56de\u5f52\u65b9\u7a0b\u7684\u7cfb\u6570\u548c\u622a\u8ddd\u3002<\/p>\n<p>\u5176\u4e2de\u7684-0.0151\u6b21\u65b9\u7684\u503c\u7ea6\u4e3a0.985\u3002<\/p>\n<p>\u8fd9\u5c31\u610f\u5473\u7740FICO\u8bc4\u5206\u6bcf\u589e\u52a0\u4e00\u4e2a\u5355\u4f4d\uff0c\u8fdd\u7ea6\u53d1\u751f\u7684\u53ef\u80fd\u6027\u5c31\u4e3a\u539f\u6765\u76840.985\u500d\uff0c\u8fdd\u7ea6\u53ef\u80fd\u6027\u964d\u4f4e\u3002<\/p>\n<p>\u591a\u5143\u903b\u8f91\u56de\u5f52\u7684\u5b9e\u73b0\u5982\u4e0b\u3002<\/p>\n<div class=\"developer-code-block\">\n<pre class=\"prism-token token line-numbers language-javascript\" style=\"color: #cccccc;\" tabindex=\"0\"><code class=\"language-javascript\">formula <span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span> <span class=\"token string\" style=\"color: #7ec699;\">\"\"<\/span><span class=\"token string\" style=\"color: #7ec699;\">\"bad_ind ~ fico_score + bankruptcy_ind + tot_derog + age_oldest_tr + rev_util + ltv + veh_mileage\"<\/span><span class=\"token string\" style=\"color: #7ec699;\">\"\"<\/span>\r\nlg_m <span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span> smf<span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">glm<\/span><span class=\"token punctuation\">(<\/span>formula<span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span>formula<span class=\"token punctuation\">,<\/span> data<span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span>train<span class=\"token punctuation\">,<\/span> family<span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span>sm<span class=\"token punctuation\">.<\/span>families<span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">Binomial<\/span><span class=\"token punctuation\">(<\/span>sm<span class=\"token punctuation\">.<\/span>families<span class=\"token punctuation\">.<\/span>links<span class=\"token punctuation\">.<\/span>logit<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">fit<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\n<span class=\"token function\" style=\"color: #f08d49;\">print<\/span><span class=\"token punctuation\">(<\/span>lg_m<span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">summary<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><\/code><\/pre>\n<p><button class=\"copy\" style=\"color: #ffffff;\">\u590d\u5236<\/button><\/div>\n<p>\u5f97\u5230\u7684\u903b\u8f91\u56de\u5f52\u7ed3\u679c\u5982\u4e0b\u3002<\/p>\n<figure>\n<div class=\"image-block\"><img decoding=\"async\" src=\"https:\/\/ask.qcloudimg.com\/http-save\/yehe-6291251\/13cw7zna24.jpeg?imageView2\/2\/w\/1620\" alt=\"\" \/><\/div>\n<\/figure>\n<p>\u5f97\u5230\u5404\u53d8\u91cf\u7684\u7cfb\u6570\uff0c\u5176\u4e2d\u300c\u53ef\u5faa\u73af\u8d37\u6b3e\u8d26\u6237\u4f7f\u7528\u6bd4\u4f8b\u300d\u548c\u300c\u884c\u9a76\u91cc\u7a0b\u300d\u8fd9\u4e24\u4e2a\u53d8\u91cf\u7684\u7cfb\u6570\u76f8\u5bf9\u6765\u8bf4\u8f83\u4e0d\u663e\u8457\uff0c\u53ef\u4ee5\u9009\u62e9\u5220\u9664\u3002<\/p>\n<p>\u5f53\u7136\u8fd8\u53ef\u4ee5\u7ed3\u5408\u7ebf\u6027\u56de\u5f52\u65f6\u4f7f\u7528\u7684\uff0c\u57fa\u4e8eAIC\u51c6\u5219\u7684\u5411\u524d\u6cd5\uff0c\u5bf9\u53d8\u91cf\u8fdb\u884c\u7b5b\u9009\u3002<\/p>\n<div class=\"developer-code-block\">\n<pre class=\"prism-token token line-numbers language-javascript\" style=\"color: #cccccc;\" tabindex=\"0\"><code class=\"language-javascript\"># \u5411\u524d\u56de\u5f52\u6cd5\r\ndef <span class=\"token function\" style=\"color: #f08d49;\">forward_select<\/span><span class=\"token punctuation\">(<\/span>data<span class=\"token punctuation\">,<\/span> response<span class=\"token punctuation\">)<\/span><span class=\"token operator\" style=\"color: #67cdcc;\">:<\/span>\r\n    <span class=\"token string\" style=\"color: #7ec699;\">\"\"<\/span><span class=\"token string\" style=\"color: #7ec699;\">\"data\u662f\u5305\u542b\u81ea\u53d8\u91cf\u53ca\u56e0\u53d8\u91cf\u7684\u6570\u636e,response\u662f\u56e0\u53d8\u91cf\"<\/span><span class=\"token string\" style=\"color: #7ec699;\">\"\"<\/span>\r\n    # \u83b7\u53d6\u81ea\u53d8\u91cf\u5217\u8868\r\n    remaining <span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span> <span class=\"token function\" style=\"color: #f08d49;\">set<\/span><span class=\"token punctuation\">(<\/span>data<span class=\"token punctuation\">.<\/span>columns<span class=\"token punctuation\">)<\/span>\r\n    remaining<span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">remove<\/span><span class=\"token punctuation\">(<\/span>response<span class=\"token punctuation\">)<\/span>\r\n    selected <span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span>\r\n    # <span class=\"token function\" style=\"color: #f08d49;\">\u5b9a\u4e49\u6570\u636e\u7c7b\u578b<\/span><span class=\"token punctuation\">(<\/span>\u6b63\u65e0\u7a77<span class=\"token punctuation\">)<\/span>\r\n    current_score<span class=\"token punctuation\">,<\/span> best_new_score <span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span> <span class=\"token function\" style=\"color: #f08d49;\">float<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\" style=\"color: #7ec699;\">'inf'<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token function\" style=\"color: #f08d49;\">float<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\" style=\"color: #7ec699;\">'inf'<\/span><span class=\"token punctuation\">)<\/span>\r\n    # \u81ea\u53d8\u91cf\u5217\u8868\u542b\u6709\u81ea\u53d8\u91cf\u65f6\r\n    <span class=\"token keyword\" style=\"color: #cc99cd;\">while<\/span> <span class=\"token literal-property property\" style=\"color: #f8c555;\">remaining<\/span><span class=\"token operator\" style=\"color: #67cdcc;\">:<\/span>\r\n        aic_with_candidates <span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span>\r\n        # \u5bf9\u81ea\u53d8\u91cf\u5217\u8868\u8fdb\u884c\u5faa\u73af\r\n        <span class=\"token keyword\" style=\"color: #cc99cd;\">for<\/span> candidates <span class=\"token keyword\" style=\"color: #cc99cd;\">in<\/span> <span class=\"token literal-property property\" style=\"color: #f8c555;\">remaining<\/span><span class=\"token operator\" style=\"color: #67cdcc;\">:<\/span>\r\n            # \u6784\u5efa\u8868\u8fbe\u5f0f<span class=\"token punctuation\">,<\/span>\u81ea\u53d8\u91cf\u4f1a\u4e0d\u65ad\u589e\u52a0\r\n            formula <span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span> <span class=\"token string\" style=\"color: #7ec699;\">\"{} ~ {}\"<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">format<\/span><span class=\"token punctuation\">(<\/span>response<span class=\"token punctuation\">,<\/span> <span class=\"token string\" style=\"color: #7ec699;\">' + '<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">join<\/span><span class=\"token punctuation\">(<\/span>selected <span class=\"token operator\" style=\"color: #67cdcc;\">+<\/span> <span class=\"token punctuation\">[<\/span>candidates<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span>\r\n            # \u751f\u6210\u81ea\u53d8\u91cf\u7684<span class=\"token constant\" style=\"color: #f8c555;\">AIC<\/span>\u89e3\u91ca\u529b\u5ea6\r\n            aic <span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span> smf<span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">glm<\/span><span class=\"token punctuation\">(<\/span>formula<span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span>formula<span class=\"token punctuation\">,<\/span> data<span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span>data<span class=\"token punctuation\">,<\/span> family<span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span>sm<span class=\"token punctuation\">.<\/span>families<span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">Binomial<\/span><span class=\"token punctuation\">(<\/span>sm<span class=\"token punctuation\">.<\/span>families<span class=\"token punctuation\">.<\/span>links<span class=\"token punctuation\">.<\/span>logit<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">fit<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>aic\r\n            # \u5f97\u5230\u81ea\u53d8\u91cf\u7684<span class=\"token constant\" style=\"color: #f8c555;\">AIC<\/span>\u89e3\u91ca\u529b\u5ea6\u5217\u8868\r\n            aic_with_candidates<span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">append<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span>aic<span class=\"token punctuation\">,<\/span> candidates<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span>\r\n        # \u5bf9\u89e3\u91ca\u529b\u5ea6\u5217\u8868\u4ece\u5927\u5230\u5c0f\u6392\u5e8f\r\n        aic_with_candidates<span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">sort<\/span><span class=\"token punctuation\">(<\/span>reverse<span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span>True<span class=\"token punctuation\">)<\/span>\r\n        # <span class=\"token function\" style=\"color: #f08d49;\">\u5f97\u5230\u89e3\u91ca\u529b\u5ea6\u6700\u5927\u503c<\/span><span class=\"token punctuation\">(<\/span><span class=\"token constant\" style=\"color: #f8c555;\">AIC<\/span>\u503c\u6700\u5c0f<span class=\"token punctuation\">)<\/span>\u53ca\u81ea\u53d8\u91cf\r\n        best_new_score<span class=\"token punctuation\">,<\/span> best_candidate <span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span> aic_with_candidates<span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">pop<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\n        # <span class=\"token number\" style=\"color: #f08d49;\">1.<\/span>\u6b63\u65e0\u7a77\u5927\u5927\u4e8e\u89e3\u91ca\u529b\u5ea6\u6700\u5927\u503c <span class=\"token number\" style=\"color: #f08d49;\">2.<\/span>\u4e0a\u4e00\u671f\u5b9e\u9a8c\u7684<span class=\"token constant\" style=\"color: #f8c555;\">AIC<\/span>\u503c\u9700\u5927\u4e8e\u4e0b\u4e00\u671f\u7684<span class=\"token constant\" style=\"color: #f8c555;\">AIC<\/span>\u5b9e\u9a8c\u503c<span class=\"token punctuation\">,<\/span>\u5373\u6dfb\u52a0\u53d8\u91cf\u8d8a\u591a<span class=\"token punctuation\">,<\/span><span class=\"token constant\" style=\"color: #f8c555;\">AIC<\/span>\u503c\u5e94\u8be5\u8d8a\u5c0f<span class=\"token punctuation\">,<\/span>\u6a21\u578b\u6548\u679c\u8d8a\u597d\r\n        <span class=\"token keyword\" style=\"color: #cc99cd;\">if<\/span> current_score <span class=\"token operator\" style=\"color: #67cdcc;\">&gt;<\/span> best_new_score<span class=\"token operator\" style=\"color: #67cdcc;\">:<\/span>\r\n            # \u79fb\u9664\u5f71\u54cd\u6700\u5927\u7684\u81ea\u53d8\u91cf\r\n            remaining<span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">remove<\/span><span class=\"token punctuation\">(<\/span>best_candidate<span class=\"token punctuation\">)<\/span>\r\n            # \u6dfb\u52a0\u5f71\u54cd\u8f83\u5927\u7684\u81ea\u53d8\u91cf\r\n            selected<span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">append<\/span><span class=\"token punctuation\">(<\/span>best_candidate<span class=\"token punctuation\">)<\/span>\r\n            # \u8d4b\u503c\u672c\u6b21\u5b9e\u9a8c\u7684<span class=\"token constant\" style=\"color: #f8c555;\">AIC<\/span>\u503c\r\n            current_score <span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span> best_new_score\r\n            <span class=\"token function\" style=\"color: #f08d49;\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\" style=\"color: #7ec699;\">'aic is {},continue!'<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">format<\/span><span class=\"token punctuation\">(<\/span>current_score<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span>\r\n        <span class=\"token keyword\" style=\"color: #cc99cd;\">else<\/span><span class=\"token operator\" style=\"color: #67cdcc;\">:<\/span>\r\n            <span class=\"token function\" style=\"color: #f08d49;\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\" style=\"color: #7ec699;\">'forward selection over!'<\/span><span class=\"token punctuation\">)<\/span>\r\n            <span class=\"token keyword\" style=\"color: #cc99cd;\">break<\/span>\r\n    # \u91c7\u7528\u5f71\u54cd\u8f83\u5927\u7684\u81ea\u53d8\u91cf\u5217\u8868<span class=\"token punctuation\">,<\/span>\u5bf9\u6570\u636e\u505a\u7ebf\u6027\u56de\u5f52\r\n    formula <span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span> <span class=\"token string\" style=\"color: #7ec699;\">\"{} ~ {}\"<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">format<\/span><span class=\"token punctuation\">(<\/span>response<span class=\"token punctuation\">,<\/span> <span class=\"token string\" style=\"color: #7ec699;\">' + '<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">join<\/span><span class=\"token punctuation\">(<\/span>selected<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span>\r\n    <span class=\"token function\" style=\"color: #f08d49;\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\" style=\"color: #7ec699;\">'final formula is {}'<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">format<\/span><span class=\"token punctuation\">(<\/span>formula<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span>\r\n    model <span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span> smf<span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">glm<\/span><span class=\"token punctuation\">(<\/span>formula<span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span>formula<span class=\"token punctuation\">,<\/span> data<span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span>data<span class=\"token punctuation\">,<\/span> family<span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span>sm<span class=\"token punctuation\">.<\/span>families<span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">Binomial<\/span><span class=\"token punctuation\">(<\/span>sm<span class=\"token punctuation\">.<\/span>families<span class=\"token punctuation\">.<\/span>links<span class=\"token punctuation\">.<\/span>logit<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">fit<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\n    <span class=\"token keyword\" style=\"color: #cc99cd;\">return<\/span> model\r\n\r\n\r\n# \u91c7\u7528\u5411\u524d\u56de\u5f52\u6cd5\u7b5b\u9009\u53d8\u91cf<span class=\"token punctuation\">,<\/span>\u5229\u7528\u7b5b\u9009\u7684\u53d8\u91cf\u6784\u5efa\u56de\u5f52\u6a21\u578b\r\ndata_for_select <span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span> train<span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">[<\/span><span class=\"token string\" style=\"color: #7ec699;\">'bad_ind'<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\" style=\"color: #7ec699;\">'fico_score'<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\" style=\"color: #7ec699;\">'bankruptcy_ind'<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\" style=\"color: #7ec699;\">'tot_derog'<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\" style=\"color: #7ec699;\">'age_oldest_tr'<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\" style=\"color: #7ec699;\">'rev_util'<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\" style=\"color: #7ec699;\">'ltv'<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\" style=\"color: #7ec699;\">'veh_mileage'<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">]<\/span>\r\nlg_m1 <span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span> <span class=\"token function\" style=\"color: #f08d49;\">forward_select<\/span><span class=\"token punctuation\">(<\/span>data<span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span>data_for_select<span class=\"token punctuation\">,<\/span> response<span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span><span class=\"token string\" style=\"color: #7ec699;\">'bad_ind'<\/span><span class=\"token punctuation\">)<\/span>\r\n<span class=\"token function\" style=\"color: #f08d49;\">print<\/span><span class=\"token punctuation\">(<\/span>lg_m1<span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">summary<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><\/code><\/pre>\n<p><button class=\"copy\" style=\"color: #ffffff;\">\u590d\u5236<\/button><\/div>\n<p>\u8f93\u51fa\u7ed3\u679c\u5982\u4e0b\u3002<\/p>\n<figure>\n<div class=\"image-block\"><img decoding=\"async\" src=\"https:\/\/ask.qcloudimg.com\/http-save\/yehe-6291251\/1wr7vmcqpg.png?imageView2\/2\/w\/1620\" alt=\"\" \/><\/div>\n<\/figure>\n<p>\u53d1\u73b0\u53d8\u91cf\u5e76\u6ca1\u6709\u88ab\u7b5b\u9009\u6389\u3002<\/p>\n<p>\u4f46\u662f\u89c2\u5bdf\u5230\u4e4b\u524d\u63d0\u5230\u7684\u4e24\u4e2a\u53d8\u91cf\uff0c\u4ed6\u4eec\u5bf9\u4e8eAIC\u503c\u7684\u6539\u53d8\uff0c\u5fae\u4e4e\u5176\u5fae\u3002<\/p>\n<p>\u867d\u7136AIC\u503c\u662f\u964d\u4f4e\u4e86\uff0c\u4f46\u662f\u57fa\u4e8e\u5c31\u53d8\u5316\u8fd9\u4e48\u70b9\u70b9\uff0c\u4e5f\u662f\u53ef\u4ee5\u9009\u62e9\u5220\u9664\u7684\u3002<\/p>\n<p>\u8fd9\u91cc\u5c31\u548c\u4e66\u4e2d\uff0c\u6709\u6240\u4e0d\u4e00\u6837\u4e86&#8230;<\/p>\n<p>\u63a5\u4e0b\u6765\u4f7f\u7528\u7ebf\u6027\u56de\u5f52\u4e2d\u7684\u65b9\u5dee\u81a8\u80c0\u56e0\u5b50\u8ba1\u7b97\u51fd\u6570\uff0c\u5b8c\u6210\u5bf9\u903b\u8f91\u56de\u5f52\u4e2d\u81ea\u53d8\u91cf\u7684\u591a\u91cd\u5171\u7ebf\u6027\u5224\u65ad\u3002<\/p>\n<div class=\"developer-code-block\">\n<pre class=\"prism-token token line-numbers language-javascript\" style=\"color: #cccccc;\" tabindex=\"0\"><code class=\"language-javascript\">def <span class=\"token function\" style=\"color: #f08d49;\">vif<\/span><span class=\"token punctuation\">(<\/span>df<span class=\"token punctuation\">,<\/span> col_i<span class=\"token punctuation\">)<\/span><span class=\"token operator\" style=\"color: #67cdcc;\">:<\/span>\r\n    # \u83b7\u53d6\u53d8\u91cf\r\n    cols <span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span> <span class=\"token function\" style=\"color: #f08d49;\">list<\/span><span class=\"token punctuation\">(<\/span>df<span class=\"token punctuation\">.<\/span>columns<span class=\"token punctuation\">)<\/span>\r\n    # \u53bb\u9664\u56e0\u53d8\u91cf\r\n    cols<span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">remove<\/span><span class=\"token punctuation\">(<\/span>col_i<span class=\"token punctuation\">)<\/span>\r\n    # \u83b7\u53d6\u81ea\u53d8\u91cf\r\n    cols_noti <span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span> cols\r\n    # \u591a\u5143\u7ebf\u6027\u56de\u5f52\u6a21\u578b\u5efa\u7acb\u53ca\u83b7\u53d6\u6a21\u578b<span class=\"token constant\" style=\"color: #f8c555;\">R<\/span>\u00b2\r\n    formula <span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span> col_i <span class=\"token operator\" style=\"color: #67cdcc;\">+<\/span> <span class=\"token string\" style=\"color: #7ec699;\">'~'<\/span> <span class=\"token operator\" style=\"color: #67cdcc;\">+<\/span> <span class=\"token string\" style=\"color: #7ec699;\">'+'<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">join<\/span><span class=\"token punctuation\">(<\/span>cols_noti<span class=\"token punctuation\">)<\/span>\r\n    r2 <span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span> smf<span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">ols<\/span><span class=\"token punctuation\">(<\/span>formula<span class=\"token punctuation\">,<\/span> df<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">fit<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>rsquared\r\n    # \u8ba1\u7b97\u65b9\u5dee\u81a8\u80c0\u7cfb\u6570\r\n    <span class=\"token keyword\" style=\"color: #cc99cd;\">return<\/span> <span class=\"token number\" style=\"color: #f08d49;\">1.<\/span> <span class=\"token operator\" style=\"color: #67cdcc;\">\/<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token number\" style=\"color: #f08d49;\">1.<\/span> <span class=\"token operator\" style=\"color: #67cdcc;\">-<\/span> r2<span class=\"token punctuation\">)<\/span>\r\n\r\n# \u83b7\u53d6\u81ea\u53d8\u91cf\u6570\u636e\r\nexog <span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span> train<span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">[<\/span><span class=\"token string\" style=\"color: #7ec699;\">'fico_score'<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\" style=\"color: #7ec699;\">'tot_derog'<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\" style=\"color: #7ec699;\">'age_oldest_tr'<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\" style=\"color: #7ec699;\">'rev_util'<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\" style=\"color: #7ec699;\">'ltv'<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\" style=\"color: #7ec699;\">'veh_mileage'<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">]<\/span>\r\n# \u904d\u5386\u81ea\u53d8\u91cf<span class=\"token punctuation\">,<\/span>\u83b7\u53d6\u5176<span class=\"token constant\" style=\"color: #f8c555;\">VIF<\/span>\u503c\r\n<span class=\"token keyword\" style=\"color: #cc99cd;\">for<\/span> i <span class=\"token keyword\" style=\"color: #cc99cd;\">in<\/span> exog<span class=\"token punctuation\">.<\/span>columns<span class=\"token operator\" style=\"color: #67cdcc;\">:<\/span>\r\n    <span class=\"token function\" style=\"color: #f08d49;\">print<\/span><span class=\"token punctuation\">(<\/span>i<span class=\"token punctuation\">,<\/span> <span class=\"token string\" style=\"color: #7ec699;\">'\\t'<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token function\" style=\"color: #f08d49;\">vif<\/span><span class=\"token punctuation\">(<\/span>df<span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span>exog<span class=\"token punctuation\">,<\/span> col_i<span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span>i<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><\/code><\/pre>\n<p><button class=\"copy\" style=\"color: #ffffff;\">\u590d\u5236<\/button><\/div>\n<p>\u8f93\u51fa\u7ed3\u679c\u5982\u4e0b\u3002<\/p>\n<figure>\n<div class=\"image-block\"><img decoding=\"async\" src=\"https:\/\/ask.qcloudimg.com\/http-save\/yehe-6291251\/1ujq9vyljl.png?imageView2\/2\/w\/1620\" alt=\"\" \/><\/div>\n<\/figure>\n<p>\u53d1\u73b0\u90fd\u5c0f\u4e8e10\u8fd9\u4e2a\u9608\u503c\uff0c\u8bf4\u660e\u81ea\u53d8\u91cf\u6ca1\u6709\u663e\u8457\u7684\u591a\u91cd\u5171\u7ebf\u6027\u3002<\/p>\n<p>\u4e0b\u9762\u5229\u7528\u8bad\u7ec3\u597d\u7684\u6a21\u578b\u5bf9\u6d4b\u8bd5\u8fdb\u884c\u9884\u6d4b\u3002<\/p>\n<div class=\"developer-code-block\">\n<pre class=\"prism-token token line-numbers language-javascript\" style=\"color: #cccccc;\" tabindex=\"0\"><code class=\"language-javascript\">train<span class=\"token punctuation\">[<\/span><span class=\"token string\" style=\"color: #7ec699;\">'proba'<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span> lg_m1<span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">predict<\/span><span class=\"token punctuation\">(<\/span>train<span class=\"token punctuation\">)<\/span>\r\ntest<span class=\"token punctuation\">[<\/span><span class=\"token string\" style=\"color: #7ec699;\">'proba'<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span> lg_m1<span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">predict<\/span><span class=\"token punctuation\">(<\/span>test<span class=\"token punctuation\">)<\/span>\r\n<span class=\"token function\" style=\"color: #f08d49;\">print<\/span><span class=\"token punctuation\">(<\/span>test<span class=\"token punctuation\">[<\/span><span class=\"token string\" style=\"color: #7ec699;\">'proba'<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">head<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span>\r\n# \u5927\u4e8e<span class=\"token number\" style=\"color: #f08d49;\">0.5<\/span>\u7684\u4e3a\u8fdd\u7ea6\r\ntest<span class=\"token punctuation\">[<\/span><span class=\"token string\" style=\"color: #7ec699;\">'prediction'<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span> <span class=\"token punctuation\">(<\/span>test<span class=\"token punctuation\">[<\/span><span class=\"token string\" style=\"color: #7ec699;\">'proba'<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\" style=\"color: #67cdcc;\">&gt;<\/span> <span class=\"token number\" style=\"color: #f08d49;\">0.5<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">astype<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\" style=\"color: #7ec699;\">'int'<\/span><span class=\"token punctuation\">)<\/span>\r\n# <span class=\"token function\" style=\"color: #f08d49;\">print<\/span><span class=\"token punctuation\">(<\/span>test<span class=\"token punctuation\">[<\/span><span class=\"token string\" style=\"color: #7ec699;\">'prediction'<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><\/code><\/pre>\n<p><button class=\"copy\" style=\"color: #ffffff;\">\u590d\u5236<\/button><\/div>\n<p>\u8f93\u51fa\u7ed3\u679c\u5982\u4e0b\u3002<\/p>\n<figure>\n<div class=\"image-block\"><img decoding=\"async\" src=\"https:\/\/ask.qcloudimg.com\/http-save\/yehe-6291251\/hzueyd4gd3.png?imageView2\/2\/w\/1620\" alt=\"\" \/><\/div>\n<\/figure>\n<p><strong>\/ 03 \/ \u6a21\u578b\u8bc4\u4f30<\/strong><\/p>\n<p>Logistic\u56de\u5f52\u6a21\u578b\u591a\u7528\u4e8e\u505a\u6392\u5e8f\u7c7b\u6a21\u578b\u3002<\/p>\n<p>\u800c\u8bc4\u4f30\u6392\u5e8f\u6a21\u578b\u7684\u6307\u6807\u5219\u6709ROC\u66f2\u7ebf\u3001K-S\u7edf\u8ba1\u91cf\u3001\u6d1b\u4f26\u5179\u66f2\u7ebf\u7b49\u3002<\/p>\n<p>\u672c\u6b21\u4ee5ROC\u66f2\u7ebf\u6765\u8bf4\u660e\u3002<\/p>\n<p>ROC\u66f2\u7ebf\u53c8\u79f0\u63a5\u6536\u8005\u64cd\u4f5c\u7279\u5f81\u66f2\u7ebf\uff0c\u7528\u6765\u63cf\u8ff0\u6a21\u578b\u5206\u8fa8\u80fd\u529b\uff0c\u5bf9\u89d2\u7ebf\u4ee5\u4e0a\u7684\u56fe\u5f62\u8d8a\u9ad8\uff0c\u5219\u6a21\u578b\u8d8a\u597d\u3002<\/p>\n<p>\u5728ROC\u66f2\u7ebf\u4e2d\uff0c\u4e3b\u8981\u6d89\u53ca\u5230\u7075\u654f\u5ea6\u4e0e\u7279\u5f02\u5ea6\u4e24\u4e2a\u6307\u6807\u3002<\/p>\n<p>\u7075\u654f\u5ea6\u8868\u793a\u6a21\u578b\u9884\u6d4b\u54cd\u5e94\u7684\u8986\u76d6\u7a0b\u5ea6\u3002<\/p>\n<p>\u7279\u5f02\u5ea6\u8868\u793a\u6a21\u578b\u9884\u6d4b\u4e0d\u54cd\u5e94\u7684\u8986\u76d6\u7a0b\u5ea6\u3002<\/p>\n<p>\u8986\u76d6\u5ea6\u8868\u793a\u9884\u6d4b\u51c6\u786e\u5730\u89c2\u6d4b\u5360\u5b9e\u9645\u89c2\u6d4b\u7684\u6bd4\u4f8b\u3002<\/p>\n<p>ROC\u66f2\u7ebf\u5219\u662f\u4ee5\u7279\u5f02\u5ea6\u4e3aX\u8f74\uff0c\u4ee5\u7075\u654f\u5ea6\u4e3aY\u8f74\u7684\u6563\u70b9\u66f2\u7ebf\u56fe\u3002<\/p>\n<p>ROC\u66f2\u7ebf\u8d8a\u9661\u5ced\uff0c\u8868\u793a\u9884\u6d4b\u6982\u7387\u9ad8\u7684\u89c2\u6d4b\u91cc\u54cd\u5e94\u7684\u8986\u76d6\u7387\u8d8a\u5f3a\uff0c\u865a\u62a5\u7684\u54cd\u5e94\u5360\u6bd4\u5c11\uff0c\u8bf4\u660e\u6a21\u578b\u6548\u679c\u8d8a\u597d\u3002<\/p>\n<p>\u6700\u540e\u53ef\u7528AUC\u503c(\u66f2\u7ebf\u4e0b\u65b9\u7684\u9762\u79ef)\u5224\u65ad\u6a21\u578b\u7684\u597d\u574f\u3002<\/p>\n<p>\u300c0.5\uff0c0.7\u300d-\u6548\u679c\u8f83\u4f4e\uff0c\u300c0.7\uff0c0.85\u300d-\u6548\u679c\u4e00\u822c\uff0c\u300c0.85\uff0c0.95\u300d-\u6548\u679c\u826f\u597d\uff0c\u300c0.95\uff0c1\u300d-\u6548\u679c\u975e\u5e38\u597d\u3002<\/p>\n<p>\u672c\u4f8b\u4e2dROC\u66f2\u7ebf\u7684\u5b9e\u73b0\u4ee3\u7801\u5982\u4e0b\u3002<\/p>\n<div class=\"developer-code-block\">\n<pre class=\"prism-token token line-numbers language-javascript\" style=\"color: #cccccc;\" tabindex=\"0\"><code class=\"language-javascript\">acc <span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span> <span class=\"token function\" style=\"color: #f08d49;\">sum<\/span><span class=\"token punctuation\">(<\/span>test<span class=\"token punctuation\">[<\/span><span class=\"token string\" style=\"color: #7ec699;\">'prediction'<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\" style=\"color: #67cdcc;\">==<\/span> test<span class=\"token punctuation\">[<\/span><span class=\"token string\" style=\"color: #7ec699;\">'bad_ind'<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\" style=\"color: #67cdcc;\">\/<\/span> np<span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">float<\/span><span class=\"token punctuation\">(<\/span><span class=\"token function\" style=\"color: #f08d49;\">len<\/span><span class=\"token punctuation\">(<\/span>test<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span>\r\n# \u9884\u6d4b\u6a21\u578b\u51c6\u786e\u7387\r\n<span class=\"token function\" style=\"color: #f08d49;\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\" style=\"color: #7ec699;\">'The accurancy is %.2f'<\/span> <span class=\"token operator\" style=\"color: #67cdcc;\">%<\/span> acc<span class=\"token punctuation\">)<\/span>\r\n# \u8f93\u51fa<span class=\"token number\" style=\"color: #f08d49;\">0.5<\/span>\u9608\u503c\u65f6\u7684\u4ea4\u53c9\u6c47\u603b\u8868\r\n<span class=\"token function\" style=\"color: #f08d49;\">print<\/span><span class=\"token punctuation\">(<\/span>pd<span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">crosstab<\/span><span class=\"token punctuation\">(<\/span>test<span class=\"token punctuation\">.<\/span>bad_ind<span class=\"token punctuation\">,<\/span> test<span class=\"token punctuation\">.<\/span>prediction<span class=\"token punctuation\">,<\/span> margins<span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span>True<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span>\r\n\r\n<span class=\"token keyword\" style=\"color: #cc99cd;\">for<\/span> i <span class=\"token keyword\" style=\"color: #cc99cd;\">in<\/span> np<span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">arange<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\" style=\"color: #f08d49;\">0<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\" style=\"color: #f08d49;\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\" style=\"color: #f08d49;\">0.1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\" style=\"color: #67cdcc;\">:<\/span>\r\n    prediction <span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span> <span class=\"token punctuation\">(<\/span>test<span class=\"token punctuation\">[<\/span><span class=\"token string\" style=\"color: #7ec699;\">'proba'<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\" style=\"color: #67cdcc;\">&gt;<\/span> i<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">astype<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\" style=\"color: #7ec699;\">'int'<\/span><span class=\"token punctuation\">)<\/span>\r\n    confusion_matrix <span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span> pd<span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">crosstab<\/span><span class=\"token punctuation\">(<\/span>test<span class=\"token punctuation\">.<\/span>bad_ind<span class=\"token punctuation\">,<\/span> prediction<span class=\"token punctuation\">,<\/span> margins<span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span>True<span class=\"token punctuation\">)<\/span>\r\n    precision <span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span> confusion_matrix<span class=\"token punctuation\">.<\/span>ix<span class=\"token punctuation\">[<\/span><span class=\"token number\" style=\"color: #f08d49;\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\" style=\"color: #f08d49;\">1<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\" style=\"color: #67cdcc;\">\/<\/span> confusion_matrix<span class=\"token punctuation\">.<\/span>ix<span class=\"token punctuation\">[<\/span><span class=\"token string\" style=\"color: #7ec699;\">'All'<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\" style=\"color: #f08d49;\">1<\/span><span class=\"token punctuation\">]<\/span>\r\n    recall <span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span> confusion_matrix<span class=\"token punctuation\">.<\/span>ix<span class=\"token punctuation\">[<\/span><span class=\"token number\" style=\"color: #f08d49;\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\" style=\"color: #f08d49;\">1<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\" style=\"color: #67cdcc;\">\/<\/span> confusion_matrix<span class=\"token punctuation\">.<\/span>ix<span class=\"token punctuation\">[<\/span><span class=\"token number\" style=\"color: #f08d49;\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\" style=\"color: #7ec699;\">'All'<\/span><span class=\"token punctuation\">]<\/span>\r\n    f1_score <span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span> <span class=\"token number\" style=\"color: #f08d49;\">2<\/span> <span class=\"token operator\" style=\"color: #67cdcc;\">*<\/span> <span class=\"token punctuation\">(<\/span>precision <span class=\"token operator\" style=\"color: #67cdcc;\">*<\/span> recall<span class=\"token punctuation\">)<\/span> <span class=\"token operator\" style=\"color: #67cdcc;\">\/<\/span> <span class=\"token punctuation\">(<\/span>precision <span class=\"token operator\" style=\"color: #67cdcc;\">+<\/span> recall<span class=\"token punctuation\">)<\/span>\r\n    <span class=\"token function\" style=\"color: #f08d49;\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\" style=\"color: #7ec699;\">'threshold: %s, precision: %.2f, recall: %.2f, f1_score: %.2f'<\/span> <span class=\"token operator\" style=\"color: #67cdcc;\">%<\/span> <span class=\"token punctuation\">(<\/span>i<span class=\"token punctuation\">,<\/span> precision<span class=\"token punctuation\">,<\/span> recall<span class=\"token punctuation\">,<\/span> f1_score<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span>\r\n\r\n# \u7ed8\u5236<span class=\"token constant\" style=\"color: #f8c555;\">ROC<\/span>\u66f2\u7ebf\r\nfpr_test<span class=\"token punctuation\">,<\/span> tpr_test<span class=\"token punctuation\">,<\/span> th_test <span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span> metrics<span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">roc_curve<\/span><span class=\"token punctuation\">(<\/span>test<span class=\"token punctuation\">.<\/span>bad_ind<span class=\"token punctuation\">,<\/span> test<span class=\"token punctuation\">.<\/span>proba<span class=\"token punctuation\">)<\/span>\r\nfpr_train<span class=\"token punctuation\">,<\/span> tpr_train<span class=\"token punctuation\">,<\/span> th_train <span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span> metrics<span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">roc_curve<\/span><span class=\"token punctuation\">(<\/span>train<span class=\"token punctuation\">.<\/span>bad_ind<span class=\"token punctuation\">,<\/span> train<span class=\"token punctuation\">.<\/span>proba<span class=\"token punctuation\">)<\/span>\r\nplt<span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">figure<\/span><span class=\"token punctuation\">(<\/span>figsize<span class=\"token operator\" style=\"color: #67cdcc;\">=<\/span><span class=\"token punctuation\">[<\/span><span class=\"token number\" style=\"color: #f08d49;\">3<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\" style=\"color: #f08d49;\">3<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span>\r\nplt<span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">plot<\/span><span class=\"token punctuation\">(<\/span>fpr_test<span class=\"token punctuation\">,<\/span> tpr_test<span class=\"token punctuation\">,<\/span> <span class=\"token string\" style=\"color: #7ec699;\">'b--'<\/span><span class=\"token punctuation\">)<\/span>\r\nplt<span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">plot<\/span><span class=\"token punctuation\">(<\/span>fpr_train<span class=\"token punctuation\">,<\/span> tpr_train<span class=\"token punctuation\">,<\/span> <span class=\"token string\" style=\"color: #7ec699;\">'r-'<\/span><span class=\"token punctuation\">)<\/span>\r\nplt<span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">title<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\" style=\"color: #7ec699;\">'ROC curve'<\/span><span class=\"token punctuation\">)<\/span>\r\nplt<span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">show<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\n\r\n# \u8ba1\u7b97<span class=\"token constant\" style=\"color: #f8c555;\">AUC<\/span>\u503c\r\n<span class=\"token function\" style=\"color: #f08d49;\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\" style=\"color: #7ec699;\">'AUC = %.4f'<\/span> <span class=\"token operator\" style=\"color: #67cdcc;\">%<\/span> metrics<span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">auc<\/span><span class=\"token punctuation\">(<\/span>fpr_train<span class=\"token punctuation\">,<\/span> tpr_train<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span>\r\n<span class=\"token function\" style=\"color: #f08d49;\">print<\/span><span class=\"token punctuation\">(<\/span>metrics<span class=\"token punctuation\">.<\/span><span class=\"token function\" style=\"color: #f08d49;\">auc<\/span><span class=\"token punctuation\">(<\/span>fpr_train<span class=\"token punctuation\">,<\/span> tpr_train<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><\/code><\/pre>\n<p><button class=\"copy\" style=\"color: #ffffff;\">\u590d\u5236<\/button><\/div>\n<p>\u8f93\u51faROC\u66f2\u7ebf\u56fe\u5982\u4e0b\u3002<\/p>\n<figure>\n<div class=\"image-block\"><img decoding=\"async\" src=\"https:\/\/ask.qcloudimg.com\/http-save\/yehe-6291251\/momn2qc4j8.png?imageView2\/2\/w\/1620\" alt=\"\" \/><\/div>\n<\/figure>\n<p>\u9884\u6d4b\u6a21\u578b\u51c6\u786e\u7387\u8f93\u51fa\u4e3a0.81\u3002<\/p>\n<p>\u8f93\u51faAUC\u503c\u4e3a0.7732\uff0c\u6a21\u578b\u6548\u679c\u4e00\u822c\u3002<\/p>\n<p>from:<\/p>\n<p>https:\/\/cloud.tencent.com\/developer\/article\/1710026<\/p>\n<p>\u6ce8\uff1a\u90e8\u5206\u6ca1\u8c03\u901a\uff0c\u5982\u679c\u6709\u8c03\u901a\u7684\u540c\u5fd7\u8bf7\u544a\u77e5\uff0c\u5fae\u4fe1dreamflier<\/p>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Python\u6570\u636e\u79d1\u5b66\uff1aLogistic\u56de\u5f52 \u597d\u4e45\u6ca1\u5199\u6570\u636e\u6316\u6398\u8fd9\u5757\u7684\u5185\u5bb9\u4e86\uff0c\u8fd9\u4e00\u671f\u5c31\u63a5\u7740\u6765\u8bb2\u8bb2\u3002 \u5b66\u4e60\u4e00\u4e0b\u903b\u8f91\u56de\u5f52\u6a21\u578b\u3002 \u4ece\u4e0a\u56fe\u6211\u4eec\u53ef\u77e5\uff0c\u903b\u8f91\u56de\u5f52\u6a21\u578b\u591a\u7528\u4e8e\u56e0\u53d8\u91cf\u4e3a\u5206\u7c7b\u53d8\u91cf\u7684\u60c5\u51b5\u3002 \u6240\u4ee5\u672c\u6b21\u7684\u6570\u636e\u9884\u6d4b\uff0c\u4e5f\u9009\u53d6\u7684\u662f\u4e00\u4e2a\u4e8c\u5206\u7c7b\u53d8\u91cf(\u662f\u5426\u8fdd\u7ea6)\u3002  &#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13],"tags":[],"class_list":["post-2201","post","type-post","status-publish","format-standard","hentry","category-13"],"_links":{"self":[{"href":"http:\/\/www.jichangqing.net\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/2201","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.jichangqing.net\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.jichangqing.net\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.jichangqing.net\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.jichangqing.net\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2201"}],"version-history":[{"count":1,"href":"http:\/\/www.jichangqing.net\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/2201\/revisions"}],"predecessor-version":[{"id":2202,"href":"http:\/\/www.jichangqing.net\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/2201\/revisions\/2202"}],"wp:attachment":[{"href":"http:\/\/www.jichangqing.net\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2201"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.jichangqing.net\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2201"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.jichangqing.net\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2201"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}