{"id":3499,"date":"2023-07-17T04:24:49","date_gmt":"2023-07-17T04:24:49","guid":{"rendered":"https:\/\/statorials.org\/cn\/%e5%9c%a8-r-%e4%b8%ad%e8%ae%be%e7%bd%ae%e7%a7%8d%e5%ad%90\/"},"modified":"2023-07-17T04:24:49","modified_gmt":"2023-07-17T04:24:49","slug":"%e5%9c%a8-r-%e4%b8%ad%e8%ae%be%e7%bd%ae%e7%a7%8d%e5%ad%90","status":"publish","type":"post","link":"https:\/\/statorials.org\/cn\/%e5%9c%a8-r-%e4%b8%ad%e8%ae%be%e7%bd%ae%e7%a7%8d%e5%ad%90\/","title":{"rendered":"\u5982\u4f55\uff08\u4ee5\u53ca\u4f55\u65f6\uff09\u5728 r \u4e2d\u4f7f\u7528 set.seed"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">R \u4e2d\u7684<strong>set.seed()<\/strong>\u51fd\u6570\u7528\u4e8e\u5728\u7f16\u5199\u6d89\u53ca\u521b\u5efa\u91c7\u7528\u968f\u673a\u503c\u7684\u53d8\u91cf\u7684\u4ee3\u7801\u65f6\u521b\u5efa\u53ef\u91cd\u590d\u7684\u7ed3\u679c\u3002<\/span><\/p>\n<p><span style=\"color: #000000;\">\u901a\u8fc7\u4f7f\u7528<strong>set.seed()<\/strong>\u51fd\u6570\uff0c\u60a8\u53ef\u4ee5\u786e\u4fdd\u6bcf\u6b21\u8fd0\u884c\u4ee3\u7801\u65f6\u90fd\u4f1a\u751f\u6210\u76f8\u540c\u7684\u968f\u673a\u503c\u3002<\/span><\/p>\n<p><span style=\"color: #000000;\">\u8be5\u51fd\u6570\u4f7f\u7528\u4ee5\u4e0b\u57fa\u672c\u8bed\u6cd5\uff1a<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>\u8bbe\u7f6e.seed(\u79cd\u5b50)<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">\u91d1\u5b50\uff1a<\/span><\/p>\n<ul>\n<li><span style=\"color: #000000;\"><strong>\u79cd\u5b50<\/strong>\uff1a\u4efb\u4f55\u4f60\u60f3\u8981\u7684\u6570\u5b57\u3002<\/span><\/li>\n<\/ul>\n<p><span style=\"color: #000000;\">\u4ee5\u4e0b\u793a\u4f8b\u5c55\u793a\u4e86\u5982\u4f55\u5728\u5b9e\u8df5\u4e2d\u4f7f\u7528\u6b64\u529f\u80fd\u3002<\/span><\/p>\n<h2><span style=\"color: #000000;\"><strong>\u793a\u4f8b1\uff1a\u4e0d\u4f7f\u7528set.seed()\u751f\u6210\u968f\u673a\u503c<\/strong><\/span><\/h2>\n<p><span style=\"color: #000000;\">\u5047\u8bbe\u6211\u4eec\u4f7f\u7528<strong>rnorm()<\/strong>\u51fd\u6570\u521b\u5efa\u4e00\u4e2a\u5305\u542b\u4e09\u4e2a\u53d8\u91cf\u7684\u6570\u636e\u6846\uff0c\u8fd9\u4e9b\u53d8\u91cf\u91c7\u7528\u9075\u5faa\u6807\u51c6\u6b63\u6001\u5206\u5e03\u7684\u968f\u673a\u503c\uff1a<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008080;\">#create data frame\n<\/span>df &lt;- data. <span style=\"color: #3366ff;\">frame<\/span> (var1 = rnorm(10),\n                 var2 = rnorm(10),\n                 var3 = rnorm(10))\n\n<span style=\"color: #008080;\">#view data frame\n<\/span>df\n\n          var1 var2 var3\n1 0.13076685 -0.32183484 0.08083558\n2 0.93926332 0.92271464 1.14695121\n3 1.97227368 0.01140237 0.29325751\n4 1.99656555 0.26735086 1.17131155\n5 -1.07893403 -0.12748185 -0.75510058\n6 -0.58955485 -0.29720114 0.57928670\n7 1.39367811 -1.43043111 -0.39395086\n8 -0.09977302 -1.93133994 -0.66654713\n9 -0.71876371 2.27999183 0.45990405\n10 0.90421007 2.28077581 0.57545709<\/span><\/span><\/strong><\/pre>\n<p><span style=\"color: #000000;\"><span style=\"color: #000000;\">\u5982\u679c\u6211\u4eec\u5c1d\u8bd5\u4f7f\u7528<strong>rnorm()<\/strong>\u518d\u6b21\u521b\u5efa\u76f8\u540c\u7684\u6570\u636e\u6846\uff0c\u5219\u4e0d\u80fd\u4fdd\u8bc1\u503c\u5c06\u76f8\u540c\uff0c\u56e0\u4e3a\u6211\u4eec\u6ca1\u6709\u4f7f\u7528<strong>set.seed()<\/strong>\u51fd\u6570\uff1a<\/span><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008080;\">#create data frame\n<\/span>df &lt;- data. <span style=\"color: #3366ff;\">frame<\/span> (var1 = rnorm(10),\n                 var2 = rnorm(10),\n                 var3 = rnorm(10))\n\n<span style=\"color: #008080;\">#view data frame\n<\/span>df\n\n         var1 var2 var3\n1 0.1841698 1.18134622 -0.9410759\n2 -1.3535924 -0.73136515 -0.2802438\n3 1.0323083 0.06530416 -1.3447057\n4 -0.6540649 -0.45005680 1.1222456\n5 0.5201189 -0.03688566 -0.6317776\n6 0.6119033 -0.13083390 0.7034120\n7 -0.1781823 0.56807218 0.2138826\n8 -0.1325103 1.10700318 -0.6799447\n9 -0.6185180 0.12327017 -0.2411492\n10 -0.2699959 -0.04093012 0.5289240\n<\/span><\/span><\/strong><\/pre>\n<p><span style=\"color: #000000;\">\u8bf7\u6ce8\u610f\uff0c\u6570\u636e\u6846\u4e2d\u6bcf\u4e00\u5217\u7684\u503c\u5b8c\u5168\u4e0d\u540c\u3002<\/span><\/p>\n<h2><span style=\"color: #000000;\"><strong>\u793a\u4f8b2\uff1a\u4f7f\u7528set.seed()\u751f\u6210\u968f\u673a\u503c<\/strong><\/span><\/h2>\n<p><span style=\"color: #000000;\">\u4ee5\u4e0b\u4ee3\u7801\u6f14\u793a\u4e86\u5982\u4f55\u5728\u4f7f\u7528<strong>rnorm()<\/strong>\u51fd\u6570\u4e4b\u524d\u4f7f\u7528<strong>set.seed()<\/strong>\u51fd\u6570\u521b\u5efa\u5305\u542b\u4e09\u4e2a\u91c7\u7528\u968f\u673a\u503c\u7684\u53d8\u91cf\u7684\u6570\u636e\u6846\uff1a<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008080;\">#make this example reproducible\n<span style=\"color: #000000;\">set. <span style=\"color: #3366ff;\">seeds<\/span> (7)\n<\/span>\n#create data frame\n<\/span>df &lt;- data. <span style=\"color: #3366ff;\">frame<\/span> (var1 = rnorm(10),\n                 var2 = rnorm(10),\n                 var3 = rnorm(10))\n\n<span style=\"color: #008080;\">#view data frame\n<\/span>df\n\n         var1 var2 var3\n1 2.2872472 0.356986230 0.8397504\n2 -1.1967717 2.716751783 0.7053418\n3 -0.6942925 2.281451926 1.3059647\n4 -0.4122930 0.324020540 -1.3879962\n5 -0.9706733 1.896067067 1.2729169\n6 -0.9472799 0.467680511 0.1841928\n7 0.7481393 -0.893800723 0.7522799\n8 -0.1169552 -0.307328300 0.5917451\n9 0.1526576 -0.004822422 -0.9830526\n10 2.1899781 0.988164149 -0.2760640\n<\/span><\/span><\/strong><\/pre>\n<p><span style=\"color: #000000;\">\u5982\u679c\u6211\u4eec\u4f7f\u7528\u4e0e\u4e4b\u524d\u76f8\u540c\u7684\u79cd\u5b50\u503c\u7684<strong>set.seed()<\/strong>\u5e76\u518d\u6b21\u521b\u5efa\u6570\u636e\u6846\uff0c\u5219\u4fdd\u8bc1\u4e0e\u4e4b\u524d\u7684\u6570\u636e\u6846\u5177\u6709\u76f8\u540c\u7684\u503c\uff1a<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008080;\">#make this example reproducible\n<\/span>set. <span style=\"color: #3366ff;\">seeds<\/span> (7)\n\n<span style=\"color: #008080;\">#create data frame\n<\/span>df2 &lt;- data. <span style=\"color: #3366ff;\">frame<\/span> (var1 = rnorm(10),\n                  var2 = rnorm(10),\n                  var3 = rnorm(10))\n\n<span style=\"color: #008080;\">#view data frame\n<\/span>df2\n\n         var1 var2 var3\n1 2.2872472 0.356986230 0.8397504\n2 -1.1967717 2.716751783 0.7053418\n3 -0.6942925 2.281451926 1.3059647\n4 -0.4122930 0.324020540 -1.3879962\n5 -0.9706733 1.896067067 1.2729169\n6 -0.9472799 0.467680511 0.1841928\n7 0.7481393 -0.893800723 0.7522799\n8 -0.1169552 -0.307328300 0.5917451\n9 0.1526576 -0.004822422 -0.9830526\n10 2.1899781 0.988164149 -0.2760640<\/span><\/span><\/strong><\/pre>\n<p><span style=\"color: #000000;\">\u8bf7\u6ce8\u610f\uff0c\u6b64\u6570\u636e\u5e27\u4e2d\u7684\u503c\u4e0e\u524d\u4e00\u4e2a\u6570\u636e\u5e27\u4e2d\u7684\u503c\u5339\u914d\u3002<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>\u6ce8\u610f<\/strong>\uff1a\u5728\u672c\u4f8b\u4e2d\uff0c\u6211\u4eec\u9009\u62e9\u4f7f\u7528<strong>7<\/strong>\u4f5c\u4e3a\u8d77\u59cb\u503c\uff0c\u4f46\u60a8\u53ef\u4ee5\u9009\u62e9\u4efb\u4f55\u60a8\u60f3\u8981\u7684\u6570\u5b57\uff0c\u4f8b\u5982 0\u300154\u300199\u3001100\u300148787 \u7b49\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\u4f7f\u7528 R \u4e2d\u7684\u5176\u4ed6\u5e38\u7528\u51fd\u6570\uff1a<\/span><\/p>\n<p><a href=\"https:\/\/statorials.org\/cn\/r-\u8c03\u6697\u51fd\u6570\/\" target=\"_blank\" rel=\"noopener\">\u5982\u4f55\u5728 R \u4e2d\u4f7f\u7528 dim() \u51fd\u6570<\/a><br \/><a href=\"https:\/\/statorials.org\/cn\/r\u4e2d\u7684\u8868\u51fd\u6570\/\" target=\"_blank\" rel=\"noopener\">\u5982\u4f55\u5728 R \u4e2d\u4f7f\u7528 table() \u51fd\u6570<\/a><br \/><a href=\"https:\/\/statorials.org\/cn\/r\u4e2d\u7684\u7b26\u53f7\u51fd\u6570\/\" target=\"_blank\" rel=\"noopener\">\u5982\u4f55\u5728R\u4e2d\u4f7f\u7528sign()\u51fd\u6570<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>R \u4e2d\u7684set.seed()\u51fd\u6570\u7528\u4e8e\u5728\u7f16\u5199\u6d89\u53ca\u521b\u5efa\u91c7\u7528\u968f\u673a\u503c\u7684\u53d8\u91cf\u7684\u4ee3\u7801\u65f6\u521b\u5efa\u53ef\u91cd\u590d\u7684\u7ed3\u679c\u3002 \u901a\u8fc7\u4f7f\u7528set. [&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-3499","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\uff08\u4ee5\u53ca\u4f55\u65f6\uff09\u5728 R \u4e2d\u4f7f\u7528 set.seed \u2013 Statorials<\/title>\n<meta name=\"description\" content=\"\u672c\u6559\u7a0b\u4ecb\u7ecd\u5982\u4f55\u4ee5\u53ca\u4f55\u65f6\u5728 R \u4e2d\u4f7f\u7528 set.seed() \u51fd\u6570\uff0c\u5305\u62ec\u793a\u4f8b\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\/\u5728-r-\u4e2d\u8bbe\u7f6e\u79cd\u5b50\/\" \/>\n<meta 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