{"id":1982,"date":"2023-07-24T05:12:42","date_gmt":"2023-07-24T05:12:42","guid":{"rendered":"https:\/\/statorials.org\/th\/%e0%b8%88%e0%b8%b3%e0%b8%99%e0%b8%a7%e0%b8%99%e0%b8%9a%e0%b8%a3%e0%b8%a3%e0%b8%97%e0%b8%b1%e0%b8%94%e0%b9%83%e0%b8%99-r\/"},"modified":"2023-07-24T05:12:42","modified_gmt":"2023-07-24T05:12:42","slug":"%e0%b8%88%e0%b8%b3%e0%b8%99%e0%b8%a7%e0%b8%99%e0%b8%9a%e0%b8%a3%e0%b8%a3%e0%b8%97%e0%b8%b1%e0%b8%94%e0%b9%83%e0%b8%99-r","status":"publish","type":"post","link":"https:\/\/statorials.org\/th\/%e0%b8%88%e0%b8%b3%e0%b8%99%e0%b8%a7%e0%b8%99%e0%b8%9a%e0%b8%a3%e0%b8%a3%e0%b8%97%e0%b8%b1%e0%b8%94%e0%b9%83%e0%b8%99-r\/","title":{"rendered":"\u0e27\u0e34\u0e18\u0e35\u0e19\u0e31\u0e1a\u0e08\u0e33\u0e19\u0e27\u0e19\u0e1a\u0e23\u0e23\u0e17\u0e31\u0e14\u0e43\u0e19 r: \u0e1e\u0e23\u0e49\u0e2d\u0e21\u0e15\u0e31\u0e27\u0e2d\u0e22\u0e48\u0e32\u0e07"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">\u0e04\u0e38\u0e13\u0e2a\u0e32\u0e21\u0e32\u0e23\u0e16\u0e43\u0e0a\u0e49\u0e1f\u0e31\u0e07\u0e01\u0e4c\u0e0a\u0e31\u0e19 <a href=\"https:\/\/statorials.org\/th\/\u0e1f\u0e31\u0e07\u0e01\u0e4c\u0e0a\u0e31\u0e19-nrow-\u0e43\u0e19-r\/\" target=\"_blank\" rel=\"noopener\">nrow()<\/a> \u0e40\u0e1e\u0e37\u0e48\u0e2d\u0e19\u0e31\u0e1a\u0e08\u0e33\u0e19\u0e27\u0e19\u0e41\u0e16\u0e27\u0e43\u0e19\u0e01\u0e23\u0e2d\u0e1a\u0e02\u0e49\u0e2d\u0e21\u0e39\u0e25\u0e43\u0e19 R:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#count total rows in data frame<\/span>\nnrow(df)\n\n<span style=\"color: #008080;\">#count total rows with no NA values in any column of data frame\n<\/span>nrow(na. <span style=\"color: #3366ff;\">omit<\/span> (df))\n\n<span style=\"color: #008080;\">#count total rows with no NA values in specific column of data frame<\/span>\nnrow(df[ <span style=\"color: #3366ff;\">!<\/span> is. <span style=\"color: #3366ff;\">na<\/span> (df$column_name),])\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">\u0e15\u0e31\u0e27\u0e2d\u0e22\u0e48\u0e32\u0e07\u0e15\u0e48\u0e2d\u0e44\u0e1b\u0e19\u0e35\u0e49\u0e41\u0e2a\u0e14\u0e07\u0e27\u0e34\u0e18\u0e35\u0e01\u0e32\u0e23\u0e43\u0e0a\u0e49\u0e1f\u0e31\u0e07\u0e01\u0e4c\u0e0a\u0e31\u0e19 <strong>nrow()<\/strong> \u0e43\u0e19\u0e17\u0e32\u0e07\u0e1b\u0e0f\u0e34\u0e1a\u0e31\u0e15\u0e34<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>\u0e15\u0e31\u0e27\u0e2d\u0e22\u0e48\u0e32\u0e07\u0e17\u0e35\u0e48 1: \u0e19\u0e31\u0e1a\u0e08\u0e33\u0e19\u0e27\u0e19\u0e41\u0e16\u0e27\u0e17\u0e31\u0e49\u0e07\u0e2b\u0e21\u0e14<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">\u0e23\u0e2b\u0e31\u0e2a\u0e15\u0e48\u0e2d\u0e44\u0e1b\u0e19\u0e35\u0e49\u0e41\u0e2a\u0e14\u0e07\u0e27\u0e34\u0e18\u0e35\u0e01\u0e32\u0e23\u0e19\u0e31\u0e1a\u0e08\u0e33\u0e19\u0e27\u0e19\u0e41\u0e16\u0e27\u0e17\u0e31\u0e49\u0e07\u0e2b\u0e21\u0e14\u0e43\u0e19\u0e01\u0e23\u0e2d\u0e1a\u0e02\u0e49\u0e2d\u0e21\u0e39\u0e25:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#create data frame<\/span>\ndf &lt;- data. <span style=\"color: #3366ff;\">frame<\/span> (var1=c(1, 3, 3, 4, 5),\n                 var2=c(7, 7, 8, 6, 2),\n                 var3=c(9, 9, 6, 6, 8),\n                 var4=c(1, 1, 2, 8, 9))\n<span style=\"color: #008080;\">\n#view data frame<\/span>\ndf\n\n  var1 var2 var3 var4\n1 1 7 9 1\n2 3 7 9 1\n3 3 8 6 2\n4 4 6 6 8\n5 5 2 8 9\n\n<span style=\"color: #008080;\">#count total rows in data frame<\/span>\nnrow(df)\n\n[1] 5<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">\u0e01\u0e23\u0e2d\u0e1a\u0e02\u0e49\u0e2d\u0e21\u0e39\u0e25\u0e19\u0e35\u0e49\u0e21\u0e35\u0e17\u0e31\u0e49\u0e07\u0e2b\u0e21\u0e14 <strong>5<\/strong> \u0e41\u0e16\u0e27<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>\u0e15\u0e31\u0e27\u0e2d\u0e22\u0e48\u0e32\u0e07\u0e17\u0e35\u0e48 2: \u0e19\u0e31\u0e1a\u0e41\u0e16\u0e27\u0e17\u0e35\u0e48\u0e44\u0e21\u0e48\u0e21\u0e35\u0e04\u0e48\u0e32 NA \u0e43\u0e19\u0e04\u0e2d\u0e25\u0e31\u0e21\u0e19\u0e4c\u0e43\u0e14\u0e46<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">\u0e23\u0e2b\u0e31\u0e2a\u0e15\u0e48\u0e2d\u0e44\u0e1b\u0e19\u0e35\u0e49\u0e41\u0e2a\u0e14\u0e07\u0e27\u0e34\u0e18\u0e35\u0e19\u0e31\u0e1a\u0e08\u0e33\u0e19\u0e27\u0e19\u0e41\u0e16\u0e27\u0e17\u0e31\u0e49\u0e07\u0e2b\u0e21\u0e14\u0e43\u0e19\u0e01\u0e23\u0e2d\u0e1a\u0e02\u0e49\u0e2d\u0e21\u0e39\u0e25\u0e42\u0e14\u0e22\u0e44\u0e21\u0e48\u0e21\u0e35\u0e04\u0e48\u0e32 NA \u0e43\u0e19\u0e04\u0e2d\u0e25\u0e31\u0e21\u0e19\u0e4c\u0e43\u0e14 \u0e46 :<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#create data frame<\/span>\ndf &lt;- data. <span style=\"color: #3366ff;\">frame<\/span> (var1=c(1, 3, 3, 4, 5),\n                 var2=c(7, 7, 8, NA, 2),\n                 var3=c(9, 9, NA, 6, 8),\n                 var4=c(1, 1, 2, 8, 9))\n<span style=\"color: #008080;\">\n#view data frame<\/span>\ndf\n\n  var1 var2 var3 var4\n1 1 7 9 1\n2 3 7 9 1\n3 3 8 NA 2\n4 4 NA 6 8\n5 5 2 8 9\n\n<span style=\"color: #008080;\">#count total rows in data frame with no NA values in any column of data frame\n<span style=\"color: #000000;\">nrow(na. <span style=\"color: #3366ff;\">omit<\/span> (df))<\/span><\/span>\n\n[1] 3<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">\u0e01\u0e23\u0e2d\u0e1a\u0e02\u0e49\u0e2d\u0e21\u0e39\u0e25\u0e19\u0e35\u0e49\u0e21\u0e35\u0e17\u0e31\u0e49\u0e07\u0e2b\u0e21\u0e14 <strong>3<\/strong> \u0e41\u0e16\u0e27\u0e17\u0e35\u0e48\u0e44\u0e21\u0e48\u0e21\u0e35\u0e04\u0e48\u0e32 NA \u0e43\u0e19\u0e04\u0e2d\u0e25\u0e31\u0e21\u0e19\u0e4c\u0e43\u0e14\u0e46<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>\u0e15\u0e31\u0e27\u0e2d\u0e22\u0e48\u0e32\u0e07\u0e17\u0e35\u0e48 3: \u0e19\u0e31\u0e1a\u0e41\u0e16\u0e27\u0e17\u0e35\u0e48\u0e44\u0e21\u0e48\u0e21\u0e35\u0e04\u0e48\u0e32 NA \u0e43\u0e19\u0e04\u0e2d\u0e25\u0e31\u0e21\u0e19\u0e4c\u0e40\u0e09\u0e1e\u0e32\u0e30<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">\u0e23\u0e2b\u0e31\u0e2a\u0e15\u0e48\u0e2d\u0e44\u0e1b\u0e19\u0e35\u0e49\u0e41\u0e2a\u0e14\u0e07\u0e27\u0e34\u0e18\u0e35\u0e19\u0e31\u0e1a\u0e08\u0e33\u0e19\u0e27\u0e19\u0e41\u0e16\u0e27\u0e17\u0e31\u0e49\u0e07\u0e2b\u0e21\u0e14\u0e43\u0e19\u0e01\u0e23\u0e2d\u0e1a\u0e02\u0e49\u0e2d\u0e21\u0e39\u0e25\u0e42\u0e14\u0e22\u0e44\u0e21\u0e48\u0e21\u0e35\u0e04\u0e48\u0e32 NA \u0e43\u0e19\u0e04\u0e2d\u0e25\u0e31\u0e21\u0e19\u0e4c\u0e43\u0e14 \u0e46 :<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#create data frame<\/span>\ndf &lt;- data. <span style=\"color: #3366ff;\">frame<\/span> (var1=c(1, 3, 3, 4, 5),\n                 var2=c(7, 7, 8, NA, 2),\n                 var3=c(9, NA, NA, 6, 8),\n                 var4=c(1, 1, 2, 8, 9))\n<span style=\"color: #008080;\">\n#view data frame<\/span>\ndf\n\n  var1 var2 var3 var4\n1 1 7 9 1\n2 3 7 NA 1\n3 3 8 NA 2\n4 4 NA 6 8\n5 5 2 8 9\n\n<span style=\"color: #008080;\">#count total rows in data frame with no NA values in 'var2' column of data frame\n<\/span>nrow(df[ <span style=\"color: #3366ff;\">!<\/span> is. <span style=\"color: #3366ff;\">na<\/span> (df$var2),])\n\n[1] 4<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">\u0e21\u0e35\u0e17\u0e31\u0e49\u0e07\u0e2b\u0e21\u0e14 <strong>4<\/strong> \u0e41\u0e16\u0e27\u0e43\u0e19\u0e01\u0e23\u0e2d\u0e1a\u0e02\u0e49\u0e2d\u0e21\u0e39\u0e25\u0e19\u0e35\u0e49\u0e17\u0e35\u0e48\u0e44\u0e21\u0e48\u0e21\u0e35\u0e04\u0e48\u0e32 NA \u0e43\u0e19\u0e04\u0e2d\u0e25\u0e31\u0e21\u0e19\u0e4c &#8220;var2&#8221;<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>\u0e41\u0e2b\u0e25\u0e48\u0e07\u0e02\u0e49\u0e2d\u0e21\u0e39\u0e25\u0e40\u0e1e\u0e34\u0e48\u0e21\u0e40\u0e15\u0e34\u0e21<\/strong><\/span><\/h3>\n<p> <a href=\"https:\/\/statorials.org\/th\/r-\u0e25\u0e1a\u0e41\u0e16\u0e27\u0e17\u0e35\u0e48\u0e21\u0e35-na-\u0e43\u0e19\u0e2b\u0e19\u0e36\u0e48\u0e07\u0e04\u0e2d\u0e25\u0e31\u0e21\u0e19\u0e4c\/\" target=\"_blank\" rel=\"noopener\">\u0e27\u0e34\u0e18\u0e35\u0e25\u0e1a\u0e41\u0e16\u0e27\u0e17\u0e35\u0e48\u0e21\u0e35 NA \u0e43\u0e19\u0e04\u0e2d\u0e25\u0e31\u0e21\u0e19\u0e4c\u0e40\u0e09\u0e1e\u0e32\u0e30\u0e43\u0e19 R<\/a><br \/> <a href=\"https:\/\/statorials.org\/th\/r-\u0e27\u0e32\u0e07\u0e41\u0e16\u0e27\u0e17\u0e35\u0e48\u0e21\u0e35\u0e2a\u0e15\u0e23\u0e34\u0e07\/\" target=\"_blank\" rel=\"noopener\">\u0e27\u0e34\u0e18\u0e35\u0e25\u0e1a\u0e1a\u0e23\u0e23\u0e17\u0e31\u0e14\u0e17\u0e35\u0e48\u0e21\u0e35\u0e2a\u0e15\u0e23\u0e34\u0e07\u0e40\u0e09\u0e1e\u0e32\u0e30\u0e43\u0e19 R<\/a><br \/> <a href=\"https:\/\/statorials.org\" target=\"_blank\" rel=\"noopener\">\u0e27\u0e34\u0e18\u0e35\u0e25\u0e1a\u0e1a\u0e23\u0e23\u0e17\u0e31\u0e14\u0e17\u0e35\u0e48\u0e0b\u0e49\u0e33\u0e01\u0e31\u0e19\u0e43\u0e19 R<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u0e04\u0e38\u0e13\u0e2a\u0e32\u0e21\u0e32\u0e23\u0e16\u0e43\u0e0a\u0e49\u0e1f\u0e31\u0e07\u0e01\u0e4c\u0e0a\u0e31\u0e19 nrow() \u0e40\u0e1e\u0e37\u0e48\u0e2d\u0e19\u0e31\u0e1a\u0e08\u0e33\u0e19\u0e27\u0e19\u0e41\u0e16\u0e27\u0e43\u0e19\u0e01\u0e23\u0e2d\u0e1a\u0e02\u0e49\u0e2d\u0e21\u0e39 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-1982","post","type-post","status-publish","format-standard","hentry","category-3"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u0e27\u0e34\u0e18\u0e35\u0e19\u0e31\u0e1a\u0e08\u0e33\u0e19\u0e27\u0e19\u0e41\u0e16\u0e27\u0e43\u0e19 R (\u0e1e\u0e23\u0e49\u0e2d\u0e21\u0e15\u0e31\u0e27\u0e2d\u0e22\u0e48\u0e32\u0e07) \u2013 \u0e2a\u0e16\u0e34\u0e15\u0e34<\/title>\n<meta name=\"description\" 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