{"id":3464,"date":"2023-07-17T08:47:51","date_gmt":"2023-07-17T08:47:51","guid":{"rendered":"https:\/\/statorials.org\/cn\/%e5%9c%a8-r-%e4%b8%ad%e8%b5%8b%e5%80%bc\/"},"modified":"2023-07-17T08:47:51","modified_gmt":"2023-07-17T08:47:51","slug":"%e5%9c%a8-r-%e4%b8%ad%e8%b5%8b%e5%80%bc","status":"publish","type":"post","link":"https:\/\/statorials.org\/cn\/%e5%9c%a8-r-%e4%b8%ad%e8%b5%8b%e5%80%bc\/","title":{"rendered":"\u5982\u4f55\u5728 r \u4e2d\u4f7f\u7528 allocate() \u51fd\u6570\uff083 \u4e2a\u793a\u4f8b\uff09"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">R\u4e2d\u7684<strong>assign()<\/strong>\u51fd\u6570\u53ef\u4ee5\u7528\u6765\u7ed9\u53d8\u91cf\u8d4b\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>\u5206\u914d\uff08x\uff0c\u503c\uff09<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">\u91d1\u5b50\uff1a<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\"><strong>x<\/strong> \uff1a\u53d8\u91cf\u540d\uff0c\u4ee5\u5b57\u7b26\u4e32\u5f62\u5f0f\u7ed9\u51fa\u3002<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>value<\/strong> \uff1a\u5206\u914d\u7ed9 x \u7684\u503c\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\u4f8b 1\uff1a\u4e3a\u53d8\u91cf\u8d4b\u503c<\/strong><\/span><\/h2>\n<p><span style=\"color: #000000;\">\u4ee5\u4e0b\u4ee3\u7801\u663e\u793a\u5982\u4f55\u4f7f\u7528<strong>allocate()<\/strong>\u51fd\u6570\u5c06\u503c 5 \u5206\u914d\u7ed9\u540d\u4e3a new_variable \u7684\u53d8\u91cf\uff1a<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#assign one value to new_variable\n<span style=\"color: #000000;\">assign('new_variable', 5)\n<\/span>\n#print new_variable\n<span style=\"color: #000000;\">new_variable\n\n[1] 5\n<\/span><\/span><\/strong><\/pre>\n<p><span style=\"color: #000000;\">\u5f53\u6211\u4eec\u6253\u5370\u540d\u4e3a<strong>new_variable \u7684<\/strong>\u53d8\u91cf\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230\u51fa\u73b0\u4e86\u503c<strong>5<\/strong> \u3002<\/span><\/p>\n<h2><span style=\"color: #000000;\"><strong>\u793a\u4f8b 2\uff1a\u5c06\u503c\u5411\u91cf\u5206\u914d\u7ed9\u53d8\u91cf<\/strong><\/span><\/h2>\n<p><span style=\"color: #000000;\">\u4ee5\u4e0b\u4ee3\u7801\u5c55\u793a\u4e86\u5982\u4f55\u4f7f\u7528<strong>allocate()<\/strong>\u51fd\u6570\u5c06\u503c\u5411\u91cf\u5206\u914d\u7ed9\u540d\u4e3a new_variable \u7684\u53d8\u91cf\uff1a<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#assign vector of values to new_variable\n<span style=\"color: #000000;\">assign('new_variable', c(5, 6, 10, 12))\n<\/span>\n#print new_variable\n<span style=\"color: #000000;\">new_variable\n\n[1] 5 6 10 12\n<\/span><\/span><\/strong><\/pre>\n<p><span style=\"color: #000000;\">\u5f53\u6211\u4eec\u6253\u5370\u540d\u4e3a<strong>new_variable \u7684<\/strong>\u53d8\u91cf\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230\u51fa\u73b0\u4e86\u4e00\u4e2a\u503c\u5411\u91cf\u3002<\/span><\/p>\n<h2><span style=\"color: #000000;\"><strong>\u793a\u4f8b3\uff1a\u4e3a\u591a\u4e2a\u53d8\u91cf\u8d4b\u503c<\/strong><\/span><\/h2>\n<p><span style=\"color: #000000;\">\u4e0b\u9762\u7684\u4ee3\u7801\u5c55\u793a\u4e86\u5982\u4f55\u5728<a href=\"https:\/\/statorials.org\/cn\/\u5bf9\u4e8e-i-\u5728-r-\u8303\u56f4\u5185\/\" target=\"_blank\" rel=\"noopener\">for\u5faa\u73af<\/a>\u4e2d\u4f7f\u7528<strong>assign()<\/strong>\u51fd\u6570\u4e3a\u591a\u4e2a\u65b0\u53d8\u91cf\u5206\u914d\u7279\u5b9a\u503c\uff1a<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#use for loop to assign values to different variables\n<span style=\"color: #000000;\"><span style=\"color: #008000;\">for<\/span> (i <span style=\"color: #008000;\">in<\/span> 1:4) {\n  assign(paste0(\"var_\", i), i*2)\n}<\/span>\n\n#view variables created in for loop\n<span style=\"color: #000000;\">var_1\n\n[1] 2\n\nvar_2\n\n[1] 4\n\nvar_3\n\n[1] 6\n\nvar_4\n\n[1] 8\n<\/span><\/span><\/strong><\/pre>\n<p><span style=\"color: #000000;\"><span style=\"color: #000000;\">\u4f7f\u7528\u5e26\u6709 for \u5faa\u73af\u7684<strong>allocate()<\/strong>\u51fd\u6570\uff0c\u6211\u4eec\u80fd\u591f\u521b\u5efa\u56db\u4e2a\u65b0\u53d8\u91cf\u3002<\/span><\/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\u7684assign()\u51fd\u6570\u53ef\u4ee5\u7528\u6765\u7ed9\u53d8\u91cf\u8d4b\u503c\u3002 \u8be5\u51fd\u6570\u4f7f\u7528\u4ee5\u4e0b\u57fa\u672c\u8bed\u6cd5\uff1a \u5206\u914d\uff08x\uff0c\u503c\uff09 \u91d1\u5b50\uff1a x \uff1a\u53d8\u91cf\u540d [&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-3464","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 R \u4e2d\u4f7f\u7528 allocate() \u51fd\u6570\uff083 \u4e2a\u793a\u4f8b\uff09 - Statorials<\/title>\n<meta name=\"description\" content=\"\u672c\u6559\u7a0b\u901a\u8fc7\u51e0\u4e2a\u793a\u4f8b\u89e3\u91ca\u4e86\u5982\u4f55\u5728 R \u4e2d\u4f7f\u7528 allocate() \u51fd\u6570\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\u8d4b\u503c\/\" \/>\n<meta property=\"og:locale\" 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