{"id":4528,"date":"2023-07-10T09:38:42","date_gmt":"2023-07-10T09:38:42","guid":{"rendered":"https:\/\/statorials.org\/cn\/%e6%b0%94%e9%97%b8%e9%87%8c%e7%83%ad%e9%97%b9%e9%9d%9e%e5%87%a1\/"},"modified":"2023-07-10T09:38:42","modified_gmt":"2023-07-10T09:38:42","slug":"%e6%b0%94%e9%97%b8%e9%87%8c%e7%83%ad%e9%97%b9%e9%9d%9e%e5%87%a1","status":"publish","type":"post","link":"https:\/\/statorials.org\/cn\/%e6%b0%94%e9%97%b8%e9%87%8c%e7%83%ad%e9%97%b9%e9%9d%9e%e5%87%a1\/","title":{"rendered":"\u5982\u4f55\u5728 sas \u4e2d\u8ba1\u7b97\u65b9\u5dee\u81a8\u80c0\u56e0\u5b50 (vif)"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">\u5728\u56de\u5f52\u5206\u6790\u4e2d\uff0c\u5f53\u4e24\u4e2a\u6216\u591a\u4e2a\u9884\u6d4b\u53d8\u91cf\u5f7c\u6b64\u9ad8\u5ea6\u76f8\u5173\uff0c\u4ee5\u81f4\u5b83\u4eec\u5728\u56de\u5f52\u6a21\u578b\u4e2d\u4e0d\u63d0\u4f9b\u552f\u4e00\u6216\u72ec\u7acb\u7684\u4fe1\u606f\u65f6\uff0c\u5c31\u4f1a\u51fa\u73b0<a href=\"https:\/\/statorials.org\/cn\/\u591a\u91cd\u5171\u7ebf\u6027\u56de\u5f52\/\" target=\"_blank\" rel=\"noopener\">\u591a\u91cd\u5171\u7ebf\u6027<\/a>\u3002<\/span><\/p>\n<p><span style=\"color: #000000;\">\u5982\u679c\u53d8\u91cf\u4e4b\u95f4\u7684\u76f8\u5173\u7a0b\u5ea6\u8db3\u591f\u9ad8\uff0c\u5219\u5728\u62df\u5408\u548c\u89e3\u91ca\u56de\u5f52\u6a21\u578b\u65f6\u53ef\u80fd\u4f1a\u51fa\u73b0\u95ee\u9898\u3002<\/span><\/p>\n<p><span style=\"color: #000000;\">\u68c0\u6d4b\u591a\u91cd\u5171\u7ebf\u6027\u7684\u4e00\u79cd\u65b9\u6cd5\u662f\u4f7f\u7528\u79f0\u4e3a<strong>\u65b9\u5dee\u81a8\u80c0\u56e0\u5b50 (VIF) \u7684<\/strong>\u6307\u6807\uff0c\u8be5\u6307\u6807\u8861\u91cf<a href=\"https:\/\/statorials.org\/cn\/\u7ebf\u6027\u56de\u5f52-python\/\" target=\"_blank\" rel=\"noopener\">\u56de\u5f52\u6a21\u578b<\/a>\u4e2d\u89e3\u91ca\u53d8\u91cf\u4e4b\u95f4\u7684\u76f8\u5173\u6027\u548c\u76f8\u5173\u5f3a\u5ea6\u3002<\/span><\/p>\n<p><span style=\"color: #000000;\">\u672c\u6559\u7a0b\u4ecb\u7ecd\u5982\u4f55\u5728 SAS \u4e2d\u8ba1\u7b97 VIF\u3002<\/span><\/p>\n<h2><span style=\"color: #000000;\"><strong>\u793a\u4f8b\uff1a\u5728 SAS \u4e2d\u8ba1\u7b97 VIF<\/strong><\/span><\/h2>\n<p><span style=\"color: #000000;\">\u5728\u6b64\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u5c06\u521b\u5efa\u4e00\u4e2a\u63cf\u8ff0 10 \u540d\u7bee\u7403\u8fd0\u52a8\u5458\u5c5e\u6027\u7684\u6570\u636e\u96c6\uff1a<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008000;\">\/*create dataset*\/\n<\/span><span style=\"color: #800080;\">data<\/span> my_data;\n    <span style=\"color: #3366ff;\">input<\/span> rating points assists rebounds;\n    <span style=\"color: #3366ff;\">datalines<\/span> ;\n90 25 5 11\n85 20 7 8\n82 14 7 10\n88 16 8 6\n94 27 5 6\n90 20 7 9\n76 12 6 6\n75 15 9 10\n87 14 9 10\n86 19 5 7\n;\n<span style=\"color: #800080;\">run<\/span> ;\n\n<span style=\"color: #008000;\">\/*view dataset*\/\n<\/span><span style=\"color: #800080;\">proc print<\/span> <span style=\"color: #3366ff;\">data<\/span> =my_data;<\/strong> <\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-35364 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/vifs1.png\" alt=\"\" width=\"320\" height=\"290\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p><span style=\"color: #000000;\">\u5047\u8bbe\u6211\u4eec\u60f3\u8981\u62df\u5408\u4e00\u4e2a\u591a\u5143\u7ebf\u6027\u56de\u5f52\u6a21\u578b\uff0c\u4f7f\u7528<strong>\u5f97\u5206<\/strong>\u4f5c\u4e3a\u54cd\u5e94\u53d8\u91cf\uff0c<strong>\u5f97\u5206<\/strong>\u3001<strong>\u52a9\u653b<\/strong>\u548c<strong>\u7bee\u677f<\/strong>\u4f5c\u4e3a\u9884\u6d4b\u53d8\u91cf\u3002<\/span><\/p>\n<p><span style=\"color: #000000;\">\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528<a href=\"https:\/\/statorials.org\/cn\/sas-\u8fc7\u7a0b\u6ce8\u518c\u8868\/\" target=\"_blank\" rel=\"noopener\">PROC REG<\/a>\u5c06\u8be5\u56de\u5f52\u6a21\u578b\u4e0e<strong>VIF<\/strong>\u9009\u9879\u8fdb\u884c\u62df\u5408\uff0c\u4ee5\u8ba1\u7b97\u6a21\u578b\u4e2d\u6bcf\u4e2a\u9884\u6d4b\u53d8\u91cf\u7684 VIF \u503c\uff1a<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008000;\">\/*fit regression model and calculate VIF values*\/\n<\/span><span style=\"color: #800080;\">proc reg<\/span> <span style=\"color: #3366ff;\">data<\/span> =my_data;\n    <span style=\"color: #3366ff;\">model<\/span> rating = points assists rebounds \/ <span style=\"color: #3366ff;\">lively<\/span> ;\n<span style=\"color: #800080;\">run<\/span> ;<\/strong> <\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-35365\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/vifs2.png\" alt=\"SAS \u4e2d\u7684 VIF\" width=\"429\" height=\"547\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p><span style=\"color: #000000;\">\u4ece<strong>\u53c2\u6570\u4f30\u8ba1<\/strong>\u8868\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230\u6bcf\u4e2a\u9884\u6d4b\u53d8\u91cf\u7684 VIF \u503c\uff1a<\/span><\/p>\n<ul>\n<li><span style=\"color: #000000;\"><strong>\u79ef\u5206\uff1a<\/strong> 1.76398<\/span><\/li>\n<li><span style=\"color: #000000;\"><strong>\u52a9\u653b\uff1a<\/strong> 1.96591<\/span><\/li>\n<li><span style=\"color: #000000;\"><strong>\u7bee\u677f\u6570\uff1a<\/strong> 1.17503<\/span><\/li>\n<\/ul>\n<p><span style=\"color: #000000;\"><strong>\u6ce8\u610f\uff1a<\/strong>\u5ffd\u7565\u6a21\u677f\u4e2d\u201cIntercept\u201d\u7684 VIF\uff0c\u56e0\u4e3a\u8be5\u503c\u4e0d\u76f8\u5173\u3002<\/span><\/p>\n<p> <span style=\"color: #000000;\">VIF \u503c\u4ece 1 \u5f00\u59cb\uff0c\u6ca1\u6709\u4e0a\u9650\u3002\u89e3\u91ca VIF \u7684\u4e00\u822c\u89c4\u5219\u662f\uff1a<\/span><\/p>\n<ul>\n<li><span style=\"color: #000000;\">\u503c<strong>1<\/strong>\u8868\u793a\u7ed9\u5b9a\u9884\u6d4b\u53d8\u91cf\u4e0e\u6a21\u578b\u4e2d\u7684\u4efb\u4f55\u5176\u4ed6\u9884\u6d4b\u53d8\u91cf\u4e4b\u95f4\u4e0d\u5b58\u5728\u76f8\u5173\u6027\u3002<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>1<\/strong>\u5230<strong>5<\/strong>\u4e4b\u95f4\u7684\u503c\u8868\u793a\u7ed9\u5b9a\u9884\u6d4b\u53d8\u91cf\u4e0e\u6a21\u578b\u4e2d\u7684\u5176\u4ed6\u9884\u6d4b\u53d8\u91cf\u4e4b\u95f4\u5b58\u5728\u4e2d\u7b49\u76f8\u5173\u6027\uff0c\u4f46\u901a\u5e38\u6ca1\u6709\u4e25\u91cd\u5230\u9700\u8981\u7279\u522b\u6ce8\u610f\u7684\u7a0b\u5ea6\u3002<\/span><\/li>\n<li><span style=\"color: #000000;\">\u5927\u4e8e<strong>5 \u7684<\/strong>\u503c\u8868\u793a\u7ed9\u5b9a\u9884\u6d4b\u53d8\u91cf\u4e0e\u6a21\u578b\u4e2d\u7684\u5176\u4ed6\u9884\u6d4b\u53d8\u91cf\u4e4b\u95f4\u5b58\u5728\u6f5c\u5728\u7684\u4e25\u91cd\u76f8\u5173\u6027\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u56de\u5f52\u7ed3\u679c\u4e2d\u7684\u7cfb\u6570\u4f30\u8ba1\u548c p \u503c\u53ef\u80fd\u4e0d\u53ef\u9760\u3002<\/span><\/li>\n<\/ul>\n<p><span style=\"color: #000000;\">\u7531\u4e8e\u6211\u4eec\u7684\u56de\u5f52\u6a21\u578b\u4e2d\u9884\u6d4b\u53d8\u91cf\u7684\u6bcf\u4e2a VIF \u503c\u90fd\u63a5\u8fd1 1\uff0c\u56e0\u6b64\u591a\u91cd\u5171\u7ebf\u6027\u5728\u6211\u4eec\u7684\u793a\u4f8b\u4e2d\u4e0d\u662f\u95ee\u9898\u3002<\/span><\/p>\n<h2><span style=\"color: #000000;\"><strong>\u5982\u4f55\u5904\u7406\u591a\u91cd\u5171\u7ebf\u6027<\/strong><\/span><\/h2>\n<p><span style=\"color: #000000;\">\u5982\u679c\u60a8\u786e\u5b9a\u56de\u5f52\u6a21\u578b\u4e2d\u5b58\u5728\u591a\u91cd\u5171\u7ebf\u6027\u95ee\u9898\uff0c\u6709\u51e0\u79cd\u5e38\u89c1\u7684\u65b9\u6cd5\u53ef\u4ee5\u89e3\u51b3\u5b83\uff1a<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>1. \u5220\u9664\u4e00\u4e2a\u6216\u591a\u4e2a\u9ad8\u5ea6\u76f8\u5173\u7684\u53d8\u91cf\u3002<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">\u5728\u5927\u591a\u6570\u60c5\u51b5\u4e0b\uff0c\u8fd9\u662f\u6700\u5feb\u7684\u89e3\u51b3\u65b9\u6848\uff0c\u5e76\u4e14\u901a\u5e38\u662f\u53ef\u63a5\u53d7\u7684\u89e3\u51b3\u65b9\u6848\uff0c\u56e0\u4e3a\u60a8\u5220\u9664\u7684\u53d8\u91cf\u65e0\u8bba\u5982\u4f55\u90fd\u662f\u591a\u4f59\u7684\uff0c\u5e76\u4e14\u5411\u6a21\u578b\u6dfb\u52a0\u7684\u552f\u4e00\u6216\u72ec\u7acb\u4fe1\u606f\u5f88\u5c11\u3002<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>2.\u4ee5\u67d0\u79cd\u65b9\u5f0f\u7ebf\u6027\u7ec4\u5408\u9884\u6d4b\u53d8\u91cf\uff0c\u4f8b\u5982\u4ee5\u67d0\u79cd\u65b9\u5f0f\u76f8\u52a0\u6216\u76f8\u51cf\u3002<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">\u901a\u8fc7\u8fd9\u6837\u505a\uff0c\u60a8\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u5305\u542b\u4e24\u4e2a\u53d8\u91cf\u4fe1\u606f\u7684\u65b0\u53d8\u91cf\uff0c\u5e76\u4e14\u4e0d\u518d\u5b58\u5728\u591a\u91cd\u5171\u7ebf\u6027\u95ee\u9898\u3002<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>3. \u6267\u884c\u65e8\u5728\u89e3\u91ca\u9ad8\u5ea6\u76f8\u5173\u53d8\u91cf\u7684\u5206\u6790\uff0c\u4f8b\u5982\u4e3b\u6210\u5206\u5206\u6790\u6216\u504f\u6700\u5c0f\u4e8c\u4e58 (PLS) \u56de\u5f52\u3002<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">\u8fd9\u4e9b\u6280\u672f\u4e13\u95e8\u8bbe\u8ba1\u7528\u4e8e\u5904\u7406\u9ad8\u5ea6\u76f8\u5173\u7684\u9884\u6d4b\u53d8\u91cf\u3002<\/span><\/p>\n<h2><span style=\"color: #000000;\"><strong>\u5176\u4ed6\u8d44\u6e90<\/strong><\/span><\/h2>\n<p><span style=\"color: #000000;\">\u4ee5\u4e0b\u6559\u7a0b\u89e3\u91ca\u4e86\u5982\u4f55\u5728 SAS \u4e2d\u6267\u884c\u5176\u4ed6\u5e38\u89c1\u4efb\u52a1\uff1a<\/span><\/p>\n<p> <span style=\"color: #000000;\"><a href=\"https:\/\/statorials.org\/cn\/sas\u4e2d\u7684\u591a\u5143\u7ebf\u6027\u56de\u5f52\/\" target=\"_blank\" rel=\"noopener\">\u5982\u4f55\u5728 SAS \u4e2d\u6267\u884c\u591a\u5143\u7ebf\u6027\u56de\u5f52<\/a><br \/><a href=\"https:\/\/statorials.org\/cn\/\u6b8b\u7559\u56fe\u5f62\u6c14\u95f8\/\" target=\"_blank\" rel=\"noopener\">\u5982\u4f55\u5728 SAS \u4e2d\u521b\u5efa\u6b8b\u5dee\u56fe<\/a><br \/><a href=\"https:\/\/statorials.org\/cn\/\u6c14\u95f8\u5ba4\u4e2d\u7684\u8fdc\u7a0b\u53a8\u5e08\/\" target=\"_blank\" rel=\"noopener\">\u5982\u4f55\u5728SAS\u4e2d\u8ba1\u7b97\u70f9\u996a\u8ddd\u79bb<\/a><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728\u56de\u5f52\u5206\u6790\u4e2d\uff0c\u5f53\u4e24\u4e2a\u6216\u591a\u4e2a\u9884\u6d4b\u53d8\u91cf\u5f7c\u6b64\u9ad8\u5ea6\u76f8\u5173\uff0c\u4ee5\u81f4\u5b83\u4eec\u5728\u56de\u5f52\u6a21\u578b\u4e2d\u4e0d\u63d0\u4f9b\u552f\u4e00\u6216\u72ec\u7acb\u7684\u4fe1\u606f\u65f6\uff0c\u5c31\u4f1a\u51fa\u73b0\u591a\u91cd\u5171\u7ebf [&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-4528","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 SAS \u4e2d\u8ba1\u7b97\u65b9\u5dee\u81a8\u80c0\u56e0\u5b50 (VIF) - Statorials<\/title>\n<meta name=\"description\" content=\"\u672c\u6559\u7a0b\u901a\u8fc7\u793a\u4f8b\u8bf4\u660e\u5982\u4f55\u5728 SAS \u4e2d\u8ba1\u7b97 VIF\uff08\u65b9\u5dee\u81a8\u80c0\u56e0\u5b50\uff09\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\/\u6c14\u95f8\u91cc\u70ed\u95f9\u975e\u51e1\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u5982\u4f55\u5728 SAS \u4e2d\u8ba1\u7b97\u65b9\u5dee\u81a8\u80c0\u56e0\u5b50 (VIF) - Statorials\" \/>\n<meta property=\"og:description\" content=\"\u672c\u6559\u7a0b\u901a\u8fc7\u793a\u4f8b\u8bf4\u660e\u5982\u4f55\u5728 SAS \u4e2d\u8ba1\u7b97 VIF\uff08\u65b9\u5dee\u81a8\u80c0\u56e0\u5b50\uff09\u3002\" \/>\n<meta property=\"og:url\" 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