{"id":1045,"date":"2023-07-27T21:02:56","date_gmt":"2023-07-27T21:02:56","guid":{"rendered":"https:\/\/statorials.org\/cn\/%e8%ae%a1%e6%95%b0%e5%a6%82%e6%9e%9c-r\/"},"modified":"2023-07-27T21:02:56","modified_gmt":"2023-07-27T21:02:56","slug":"%e8%ae%a1%e6%95%b0%e5%a6%82%e6%9e%9c-r","status":"publish","type":"post","link":"https:\/\/statorials.org\/cn\/%e8%ae%a1%e6%95%b0%e5%a6%82%e6%9e%9c-r\/","title":{"rendered":"\u5982\u4f55\u5728 r \u4e2d\u8fd0\u884c countif \u51fd\u6570"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">\u901a\u5e38\uff0c\u60a8\u53ef\u80fd<em>\u53ea\u60f3<\/em>\u8ba1\u7b97 R \u6570\u636e\u6846\u4e2d\u6ee1\u8db3\u7279\u5b9a\u6761\u4ef6\u7684\u884c\u6570\u3002\u5e78\u8fd0\u7684\u662f\uff0c\u4f7f\u7528\u4ee5\u4e0b\u57fa\u672c\u8bed\u6cd5\u53ef\u4ee5\u8f7b\u677e\u505a\u5230\u8fd9\u4e00\u70b9\uff1a<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>sum(df$column == value, na.rm= <span style=\"color: #008000;\">TRUE<\/span> )\n<\/strong><\/pre>\n<p><span style=\"color: #000000;\">\u4ee5\u4e0b\u793a\u4f8b\u5c55\u793a\u4e86\u5982\u4f55\u5728\u4ee5\u4e0b\u6570\u636e\u5e27\u4e0a\u5b9e\u9645\u4f7f\u7528\u6b64\u8bed\u6cd5\uff1a<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <b><span style=\"color: #008080;\">#create data frame<\/span>\ndata &lt;- data.frame(team=c('Mavs', 'Mavs', 'Spurs', 'Spurs', 'Lakers'),\n                   points=c(14, NA, 8, 17, 22),\n                   rebounds=c(8, 5, 5, 9, 12))\n\n<span style=\"color: #008080;\">#view data frame\n<\/span>data\n\n    team points rebounds\n1 Mavs 14 8\n2 Mavs NA 5\n3 Spurs 8 5\n4 Spurs 17 9\n5 Lakers 22 12\n<\/b><\/pre>\n<h3><span style=\"color: #000000;\"><strong>\u793a\u4f8b 1\uff1a\u8ba1\u7b97\u7b49\u4e8e\u7279\u5b9a\u503c\u7684\u884c\u6570<\/strong><\/span><\/h3>\n<p><span style=\"color: #000000;\">\u4ee5\u4e0b\u4ee3\u7801\u663e\u793a\u5982\u4f55\u8ba1\u7b97\u7403\u961f\u540d\u79f0\u7b49\u4e8e\u201cMavs\u201d\u7684\u884c\u6570\uff1a<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>sum(data$team == ' <span style=\"color: #008000;\">Mavs<\/span> ')\n\n[1] 2\n<\/strong><\/pre>\n<p><span style=\"color: #000000;\">\u4ee5\u4e0b\u4ee3\u7801\u663e\u793a\u5982\u4f55\u8ba1\u7b97\u7403\u961f\u540d\u79f0\u7b49\u4e8e\u201cMavs\u201d\u6216\u201cLakers\u201d\u7684\u884c\u6570\uff1a<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>sum(data$team == ' <span style=\"color: #008000;\">Mavs<\/span> ' | data$team == ' <span style=\"color: #008000;\">Lakers<\/span> ')\n\n[1] 3<\/strong><\/pre>\n<p><span style=\"color: #000000;\">\u4ee5\u4e0b\u4ee3\u7801\u663e\u793a\u5982\u4f55\u8ba1\u7b97\u7403\u961f\u540d\u79f0<em>\u4e0d<\/em>\u7b49\u4e8e\u201cLakers\u201d\u7684\u884c\u6570\uff1a<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>sum(data$team != ' <span style=\"color: #008000;\">Lakers<\/span> ')\n\n[1] 4<\/strong><\/pre>\n<h3><span style=\"color: #000000;\"><strong>\u793a\u4f8b2\uff1a\u8ba1\u7b97\u5927\u4e8e\u6216\u7b49\u4e8e\u67d0\u4e2a\u503c\u7684\u884c\u6570<\/strong><\/span><\/h3>\n<p><span style=\"color: #000000;\">\u4ee5\u4e0b\u4ee3\u7801\u663e\u793a\u5982\u4f55\u8ba1\u7b97\u70b9\u6570\u5927\u4e8e 10 \u7684\u884c\u6570\uff1a<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>sum(data$points &gt; 10, na.rm= <span style=\"color: #008000;\">TRUE<\/span> )\n\n[1] 3<\/strong><\/pre>\n<p><span style=\"color: #000000;\">\u4ee5\u4e0b\u4ee3\u7801\u663e\u793a\u5982\u4f55\u8ba1\u7b97\u8df3\u51fa\u7387\u5c0f\u4e8e\u6216\u7b49\u4e8e 9 \u7684\u884c\u6570\uff1a<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>sum(data$rebounds &lt;= 9, na.rm= <span style=\"color: #008000;\">TRUE<\/span> )\n\n[1] 4<\/strong><\/pre>\n<h3><span style=\"color: #000000;\"><strong>\u793a\u4f8b 3\uff1a\u8ba1\u7b97\u4e24\u4e2a\u503c\u4e4b\u95f4\u7684\u884c\u6570<\/strong><\/span><\/h3>\n<p><span style=\"color: #000000;\">\u4ee5\u4e0b\u4ee3\u7801\u663e\u793a\u5982\u4f55\u8ba1\u7b97\u70b9\u5728 10 \u5230 20 \u4e4b\u95f4\u7684\u884c\u6570\uff1a<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>sum(data$points &gt; 10 &amp; data$points &lt; 20, na.rm= <span style=\"color: #008000;\">TRUE<\/span> )\n\n[1] 2<\/strong><\/pre>\n<p><span style=\"color: #000000;\">\u4ee5\u4e0b\u4ee3\u7801\u663e\u793a\u5982\u4f55\u8ba1\u7b97\u8df3\u51fa\u6b21\u6570\u5728 8 \u5230 10 \u4e4b\u95f4\u7684\u884c\u6570\uff1a<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>sum(data$rebounds &gt; 8 &amp; data$rebounds &lt; 10, na.rm= <span style=\"color: #008000;\">TRUE<\/span> )\n\n[1] 1<\/strong><\/pre>\n<h3><span style=\"color: #000000;\"><strong>\u5176\u4ed6\u8d44\u6e90<\/strong><\/span><\/h3>\n<p><a href=\"https:\/\/statorials.org\/cn\/\u6309\u7ec4-r-\u8ba1\u6570\/\" target=\"_blank\" rel=\"noopener noreferrer\">\u5982\u4f55\u5728 R \u4e2d\u8ba1\u7b97\u6bcf\u7ec4\u7684\u89c2\u5bdf\u503c<\/a><br \/><a href=\"https:\/\/statorials.org\/cn\/\u7ec4\u6062\u590d\u6570\u636er\/\" target=\"_blank\" rel=\"noopener noreferrer\">\u5982\u4f55\u5728 R \u4e2d\u5bf9\u6570\u636e\u8fdb\u884c\u5206\u7ec4\u548c\u6c47\u603b<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u901a\u5e38\uff0c\u60a8\u53ef\u80fd\u53ea\u60f3\u8ba1\u7b97 R \u6570\u636e\u6846\u4e2d\u6ee1\u8db3\u7279\u5b9a\u6761\u4ef6\u7684\u884c\u6570\u3002\u5e78\u8fd0\u7684\u662f\uff0c\u4f7f\u7528\u4ee5\u4e0b\u57fa\u672c\u8bed\u6cd5\u53ef\u4ee5\u8f7b\u677e\u505a\u5230\u8fd9\u4e00\u70b9\uff1a sum( [&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-1045","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\u8fd0\u884c COUNTIF \u51fd\u6570 - Statorials<\/title>\n<meta name=\"description\" content=\"\u5173\u4e8e\u5982\u4f55\u5728 R \u4e2d\u6267\u884c COUNTIF \u51fd\u6570\u7684\u7b80\u5355\u8bf4\u660e\uff0c\u5305\u62ec\u4e00\u4e2a\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\/\u8ba1\u6570\u5982\u679c-r\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" 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