{"id":885,"date":"2023-07-28T10:40:30","date_gmt":"2023-07-28T10:40:30","guid":{"rendered":"https:\/\/statorials.org\/cn\/python-%e7%82%b9%e5%8f%8c%e5%88%97%e7%9b%b8%e5%85%b3\/"},"modified":"2023-07-28T10:40:30","modified_gmt":"2023-07-28T10:40:30","slug":"python-%e7%82%b9%e5%8f%8c%e5%88%97%e7%9b%b8%e5%85%b3","status":"publish","type":"post","link":"https:\/\/statorials.org\/cn\/python-%e7%82%b9%e5%8f%8c%e5%88%97%e7%9b%b8%e5%85%b3\/","title":{"rendered":"\u5982\u4f55\u5728 python \u4e2d\u8ba1\u7b97\u70b9\u53cc\u5217\u76f8\u5173\u6027"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\"><strong>\u70b9\u53cc\u5217\u76f8\u5173<\/strong>\u7528\u4e8e\u6d4b\u91cf\u4e8c\u5143\u53d8\u91cf x \u548c\u8fde\u7eed\u53d8\u91cf y \u4e4b\u95f4\u7684\u5173\u7cfb\u3002<\/span><\/p>\n<p><span style=\"color: #000000;\">\u4e0e<a href=\"https:\/\/statorials.org\/cn\/\u76ae\u5c14\u900a\u76f8\u5173\u7cfb\u6570-1\/\" target=\"_blank\" rel=\"noopener\">Pearson \u76f8\u5173\u7cfb\u6570<\/a>\u7c7b\u4f3c\uff0c\u70b9\u53cc\u5217\u76f8\u5173\u7cfb\u6570\u53d6 -1 \u5230 1 \u4e4b\u95f4\u7684\u503c\uff0c\u5176\u4e2d\uff1a<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">-1\u8868\u793a\u4e24\u4e2a\u53d8\u91cf\u4e4b\u95f4\u5b8c\u5168\u8d1f\u76f8\u5173<\/span><\/li>\n<li><span style=\"color: #000000;\">0 \u8868\u793a\u4e24\u4e2a\u53d8\u91cf\u4e4b\u95f4\u6ca1\u6709\u76f8\u5173\u6027<\/span><\/li>\n<li><span style=\"color: #000000;\">1 \u8868\u793a\u4e24\u4e2a\u53d8\u91cf\u4e4b\u95f4\u5b8c\u5168\u6b63\u76f8\u5173<\/span><\/li>\n<\/ul>\n<p><span style=\"color: #000000;\">\u672c\u6559\u7a0b\u4ecb\u7ecd\u5982\u4f55\u5728 Python \u4e2d\u8ba1\u7b97\u4e24\u4e2a\u53d8\u91cf\u4e4b\u95f4\u7684\u70b9\u4e8c\u5217\u76f8\u5173\u6027\u3002<\/span><\/p>\n<h3><strong><span style=\"color: #000000;\">\u793a\u4f8b\uff1aPython \u4e2d\u7684\u70b9\u53cc\u5217\u76f8\u5173<\/span><\/strong><\/h3>\n<p><span style=\"color: #000000;\">\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u4e8c\u5143\u53d8\u91cf x \u548c\u4e00\u4e2a\u8fde\u7eed\u53d8\u91cf y\uff1a<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>x = [0, 1, 1, 0, 0, 0, 1, 0, 1, 1, 0]\ny = [12, 14, 17, 17, 11, 22, 23, 11, 19, 8, 12]\n<\/strong><\/pre>\n<p><span style=\"color: #000000;\">\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 scipy.stats \u5e93\u4e2d\u7684<a href=\"https:\/\/docs.scipy.org\/doc\/scipy\/reference\/generated\/scipy.stats.pointbiserialr.html\" target=\"_blank\" rel=\"noopener\">pointbserialr()<\/a>\u51fd\u6570\u6765\u8ba1\u7b97\u4e24\u4e2a\u53d8\u91cf\u4e4b\u95f4\u7684\u70b9\u4e8c\u5217\u76f8\u5173\u6027\u3002<\/span><\/p>\n<p><span style=\"color: #000000;\">\u8bf7\u6ce8\u610f\uff0c\u6b64\u51fd\u6570\u8fd4\u56de\u76f8\u5173\u7cfb\u6570\u4ee5\u53ca\u76f8\u5e94\u7684 p \u503c\uff1a<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #107d3f;\">import<\/span> scipy.stats <span style=\"color: #107d3f;\">as<\/span> stats\n\n<span style=\"color: #008080;\">#calculate point-biserial correlation<\/span>\nstats. <span style=\"color: #3366ff;\">pointbiserialr<\/span> (x,y)\n\nPointbiserialrResult(correlation=0.21816, pvalue=0.51928)\n<\/strong><\/pre>\n<p><span style=\"color: #000000;\">\u70b9\u53cc\u5217\u76f8\u5173\u7cfb\u6570\u4e3a<strong>0.21816<\/strong> \uff0c\u76f8\u5e94\u7684 p \u503c\u4e3a<strong>0.51928<\/strong> \u3002<\/span><\/p>\n<p><span style=\"color: #000000;\">\u7531\u4e8e\u76f8\u5173\u7cfb\u6570\u4e3a\u6b63\uff0c\u8fd9\u8868\u660e\u5f53\u53d8\u91cfx\u53d6\u503c\u201c1\u201d\u65f6\uff0c\u53d8\u91cfy\u5f80\u5f80\u6bd4\u53d8\u91cfx\u53d6\u503c\u201c0\u201d\u65f6\u53d6\u66f4\u9ad8\u7684\u503c\u3002<\/span><\/p>\n<p><span style=\"color: #000000;\">\u7531\u4e8e\u8be5\u76f8\u5173\u6027\u7684 p \u503c\u4e0d\u5c0f\u4e8e 0.05\uff0c\u56e0\u6b64\u8be5\u76f8\u5173\u6027\u5728\u7edf\u8ba1\u4e0a\u4e0d\u663e\u7740\u3002<\/span><\/p>\n<p><em><span style=\"color: #000000;\">\u60a8\u53ef\u4ee5\u5728 scipy.stats \u6587\u6863\u4e2d\u627e\u5230\u5982\u4f55\u8ba1\u7b97\u6b64\u76f8\u5173\u6027\u7684\u786e\u5207\u8be6\u7ec6\u4fe1\u606f<\/span><span style=\"color: #000000;\"><a href=\"https:\/\/docs.scipy.org\/doc\/scipy\/reference\/generated\/scipy.stats.pointbiserialr.html\" target=\"_blank\" rel=\"noopener\">\u3002<\/a><\/span><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u70b9\u53cc\u5217\u76f8\u5173\u7528\u4e8e\u6d4b\u91cf\u4e8c\u5143\u53d8\u91cf x \u548c\u8fde\u7eed\u53d8\u91cf y \u4e4b\u95f4\u7684\u5173\u7cfb\u3002 \u4e0ePearson \u76f8\u5173\u7cfb\u6570\u7c7b\u4f3c\uff0c\u70b9\u53cc\u5217\u76f8\u5173\u7cfb\u6570\u53d6 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[],"class_list":["post-885","post","type-post","status-publish","format-standard","hentry","category-11"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u5982\u4f55\u5728 Python \u4e2d\u8ba1\u7b97\u70b9\u53cc\u5217\u76f8\u5173\u6027 - Statorials<\/title>\n<meta name=\"description\" content=\"\u7b80\u5355\u89e3\u91ca\u5982\u4f55\u5728 Python \u4e2d\u8ba1\u7b97\u70b9\u53cc\u5217\u76f8\u5173\u6027\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:\/\/statorials.org\/cn\/python-\u70b9\u53cc\u5217\u76f8\u5173\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta 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