{"id":1863,"date":"2023-07-24T16:53:11","date_gmt":"2023-07-24T16:53:11","guid":{"rendered":"https:\/\/statorials.org\/id\/adalah-na\/"},"modified":"2023-07-24T16:53:11","modified_gmt":"2023-07-24T16:53:11","slug":"adalah-na","status":"publish","type":"post","link":"https:\/\/statorials.org\/id\/adalah-na\/","title":{"rendered":"Cara menggunakan is.na di r (dengan contoh)"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Anda dapat menggunakan fungsi <strong>is.na()<\/strong> di R untuk memeriksa nilai yang hilang dalam vektor dan bingkai data.<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#check if each individual value is NA\n<\/span>is. <span style=\"color: #3366ff;\">na<\/span> (x)\n\n<span style=\"color: #008080;\">#count total NA values\n<\/span>sum( <span style=\"color: #3366ff;\">is.na<\/span> (x))\n\n<span style=\"color: #008080;\">#identify positions of NA values\n<\/span>which(is. <span style=\"color: #3366ff;\">na<\/span> (x))\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Contoh berikut menunjukkan cara menggunakan fungsi ini dalam praktiknya.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Contoh 1: Gunakan is.na() dengan vektor<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Kode berikut menunjukkan cara menggunakan fungsi <strong>is.na()<\/strong> untuk memeriksa nilai yang hilang dalam vektor:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#define vector with some missing values\n<span style=\"color: #000000;\">x &lt;- c(3, 5, 5, NA, 7, NA, 12, 16)<\/span>\n\n#check if each individual value is NA\n<\/span>is. <span style=\"color: #3366ff;\">na<\/span> (x)\n\n[1] FALSE FALSE FALSE TRUE FALSE TRUE FALSE FALSE\n\n<span style=\"color: #008080;\">#count total NA values\n<\/span>sum( <span style=\"color: #3366ff;\">is.na<\/span> (x))\n\n[1] 2\n\n<span style=\"color: #008080;\">#identify positions of NA values\n<\/span>which(is. <span style=\"color: #3366ff;\">na<\/span> (x))\n\n[1] 4 6\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Dari hasilnya kita dapat melihat:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">Ada 2 nilai yang hilang pada vektor.<\/span><\/li>\n<li> <span style=\"color: #000000;\">Nilai yang hilang terletak pada posisi 4 dan 6.<\/span><\/li>\n<\/ul>\n<h3> <span style=\"color: #000000;\"><strong>Contoh 2:<\/strong><\/span> <span style=\"color: #000000;\"><strong>Gunakan is.na() dengan bingkai data<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Kode berikut menunjukkan cara menggunakan fungsi is.na() untuk memeriksa nilai yang hilang dalam bingkai data:<\/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=c(1, 3, 3, 4, 5),\n                 var2=c(7, NA, NA, 3, 2),\n                 var3=c(3, 3, 6, NA, 8),\n                 var4=c(NA, 1, 2, 8, 9))\n\n<span style=\"color: #008080;\">#view data frame\n<\/span>df\n\n  var1 var2 var3 var4\n1 1 7 3 NA\n2 3 NA 3 1\n3 3 NA 6 2\n4 4 3 NA 8\n5 5 2 8 9\n\n<span style=\"color: #008080;\">#find total NA values in data frame\n<\/span>sum( <span style=\"color: #3366ff;\">is.na<\/span> (df))\n\n[1] 4\n\n<span style=\"color: #008080;\">#find total NA values by column\n<\/span>sapply(df, <span style=\"color: #008000;\">function<\/span> (x) sum(is. <span style=\"color: #3366ff;\">na<\/span> (x)))\n\nvar1 var2 var3 var4 \n   0 2 1 1<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Dari outputnya terlihat ada <strong>4<\/strong> total nilai NA pada data frame.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Kita juga dapat melihat:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">Ada <strong>0<\/strong> nilai NA pada kolom \u201cvar1\u201d.<\/span><\/li>\n<li> <span style=\"color: #000000;\">Ada <strong>2<\/strong> nilai NA pada kolom \u201cvar2\u201d.<\/span><\/li>\n<li> <span style=\"color: #000000;\">Terdapat <strong>1<\/strong> nilai NA pada kolom \u201cvar3\u201d.<\/span><\/li>\n<li> <span style=\"color: #000000;\">Terdapat <strong>1<\/strong> nilai NA pada kolom \u201cvar4\u201d.<\/span><\/li>\n<\/ul>\n<h3> <span style=\"color: #000000;\"><strong>Sumber daya tambahan<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Tutorial berikut menjelaskan fungsi berguna lainnya yang dapat digunakan untuk menangani nilai yang hilang di R.<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/id\/tidak-hilangkan-di-r\/\" target=\"_blank\" rel=\"noopener\">Cara menggunakan na.omit di R<\/a><br \/> <a href=\"https:\/\/statorials.org\/id\/di-rm\/\" target=\"_blank\" rel=\"noopener\">Cara menggunakan na.rm di R<\/a><br \/> <a href=\"https:\/\/statorials.org\/id\/adalah-nol-di-r\/\">Cara menggunakan is.null di R<\/a><br \/> <a href=\"https:\/\/statorials.org\/id\/memperhitungkan-nilai-yang-hilang-di-r\/\" target=\"_blank\" rel=\"noopener\">Bagaimana cara memasukkan semua nilai yang hilang di R<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Anda dapat menggunakan fungsi is.na() di R untuk memeriksa nilai yang hilang dalam vektor dan bingkai data. #check if each individual value is NA is. na (x) #count total NA values sum( is.na (x)) #identify positions of NA values which(is. na (x)) Contoh berikut menunjukkan cara menggunakan fungsi ini dalam praktiknya. Contoh 1: Gunakan is.na() [&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":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Cara menggunakan is.na di R (dengan contoh) \u2013 Statorial<\/title>\n<meta name=\"description\" content=\"Tutorial ini menjelaskan cara menggunakan fungsi is.na() di R, dengan beberapa contoh.\" \/>\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\/id\/adalah-na\/\" \/>\n<meta property=\"og:locale\" content=\"id_ID\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cara menggunakan is.na di R (dengan contoh) \u2013 Statorial\" \/>\n<meta property=\"og:description\" content=\"Tutorial ini menjelaskan cara menggunakan fungsi is.na() di R, dengan beberapa contoh.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/id\/adalah-na\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-24T16:53:11+00:00\" \/>\n<meta name=\"author\" content=\"Benjamin anderson\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Ditulis oleh\" \/>\n\t<meta name=\"twitter:data1\" content=\"Benjamin anderson\" \/>\n\t<meta name=\"twitter:label2\" content=\"Estimasi waktu membaca\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 menit\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/statorials.org\/id\/adalah-na\/\",\"url\":\"https:\/\/statorials.org\/id\/adalah-na\/\",\"name\":\"Cara menggunakan is.na di R (dengan contoh) \u2013 Statorial\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/id\/#website\"},\"datePublished\":\"2023-07-24T16:53:11+00:00\",\"dateModified\":\"2023-07-24T16:53:11+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/id\/#\/schema\/person\/3d17a1160dd2d052b7c78e502cb9ec81\"},\"description\":\"Tutorial ini menjelaskan cara menggunakan fungsi is.na() di R, dengan beberapa contoh.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/id\/adalah-na\/#breadcrumb\"},\"inLanguage\":\"id\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/id\/adalah-na\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/id\/adalah-na\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/statorials.org\/id\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Cara menggunakan is.na di r (dengan contoh)\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/statorials.org\/id\/#website\",\"url\":\"https:\/\/statorials.org\/id\/\",\"name\":\"Statorials\",\"description\":\"Panduan anda untuk kompetensi statistik!\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/statorials.org\/id\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"id\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/statorials.org\/id\/#\/schema\/person\/3d17a1160dd2d052b7c78e502cb9ec81\",\"name\":\"Benjamin anderson\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"id\",\"@id\":\"https:\/\/statorials.org\/id\/#\/schema\/person\/image\/\",\"url\":\"http:\/\/statorials.org\/id\/wp-content\/uploads\/2023\/10\/Dr.-Benjamin-Anderson-96x96.jpg\",\"contentUrl\":\"http:\/\/statorials.org\/id\/wp-content\/uploads\/2023\/10\/Dr.-Benjamin-Anderson-96x96.jpg\",\"caption\":\"Benjamin anderson\"},\"description\":\"Halo, saya Benjamin, pensiunan profesor statistika yang menjadi guru Statorial yang berdedikasi. 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