{"id":3873,"date":"2023-07-15T01:21:29","date_gmt":"2023-07-15T01:21:29","guid":{"rendered":"https:\/\/statorials.org\/id\/r-menghitung-na-di-setiap-kolom\/"},"modified":"2023-07-15T01:21:29","modified_gmt":"2023-07-15T01:21:29","slug":"r-menghitung-na-di-setiap-kolom","status":"publish","type":"post","link":"https:\/\/statorials.org\/id\/r-menghitung-na-di-setiap-kolom\/","title":{"rendered":"A: hitung jumlah nilai na pada setiap kolom"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Anda dapat menggunakan metode berikut untuk menghitung jumlah nilai NA di setiap kolom bingkai data di R:<\/span><\/p>\n<p> <strong><span style=\"color: #000000;\">Metode 1: Hitung nilai NA pada setiap kolom menggunakan basis R<\/span><\/strong><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>sapply(df, <span style=\"color: #008000;\">function<\/span> (x) sum(is. <span style=\"color: #3366ff;\">na<\/span> (x)))\n<\/strong><\/pre>\n<p> <strong><span style=\"color: #000000;\">Metode 2: Hitung nilai NA di setiap kolom menggunakan dplyr<\/span><\/strong><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008000;\">library<\/span> (dplyr)\n\ndf %&gt;% summarise(across(everything(), ~ sum(is. <span style=\"color: #3366ff;\">na<\/span> (.))))<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Contoh berikut menunjukkan cara menggunakan setiap metode dengan bingkai data berikut di R:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#create data frame\n<\/span>df &lt;- data. <span style=\"color: #3366ff;\">frame<\/span> (team=c('A', 'B', 'C', 'D', 'E'),\n                 points=c(99, 90, 86, 88, NA),\n                 assists=c(33, NA, NA, 39, 34),\n                 rebounds=c(30, 28, 24, 24, 28))\n\n<span style=\"color: #008080;\">#view data frame\n<\/span>df\n\n  team points assists rebounds\n1 A 99 33 30\n2 B 90 NA 28\n3 C 86 NA 24\n4 D 88 39 24\n5 E NA 34 28\n<\/strong><\/pre>\n<h2> <span style=\"color: #000000;\"><strong>Contoh 1: Hitung nilai NA pada setiap kolom menggunakan basis R<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">Kode berikut menunjukkan cara menghitung jumlah nilai NA di setiap kolom menggunakan fungsi R base <strong>sapply()<\/strong> :<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#count NA values in each column\n<\/span>sapply(df, <span style=\"color: #008000;\">function<\/span> (x) sum(is. <span style=\"color: #3366ff;\">na<\/span> (x)))\n\n    team points assists rebounds \n       0 1 2 0<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Dari hasilnya kita dapat melihat:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">Kolom <strong>tim<\/strong> memiliki nilai 0 NA.<\/span><\/li>\n<li> <span style=\"color: #000000;\">Kolom <strong>poin<\/strong> mempunyai nilai 1 NA.<\/span><\/li>\n<li> <span style=\"color: #000000;\">Kolom <strong>assist<\/strong> memiliki 2 nilai NA.<\/span><\/li>\n<li> <span style=\"color: #000000;\">Kolom <strong>pentalan<\/strong> memiliki nilai 0 NA.<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\"><strong>Catatan<\/strong> : Fungsi <strong>sapply()<\/strong> dapat digunakan untuk menerapkan fungsi ke setiap kolom dalam bingkai data. Dalam contoh ini, kita menerapkan fungsi yang menghitung jumlah total elemen yang sama dengan NA.<\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Contoh 2: Hitung nilai NA pada setiap kolom menggunakan dplyr<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">Kode berikut menunjukkan cara menghitung jumlah nilai NA pada setiap kolom menggunakan fungsi <strong>summarise()<\/strong> dari paket <a href=\"https:\/\/dplyr.tidyverse.org\/\" target=\"_blank\" rel=\"noopener\">dplyr<\/a> :<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#count NA values in each column\n<\/span>sapply(df, <span style=\"color: #008000;\">function<\/span> (x) sum(is. <span style=\"color: #3366ff;\">na<\/span> (x)))\n\n    team points assists rebounds \n       0 1 2 0<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Dari hasilnya kita dapat melihat:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">Kolom <strong>tim<\/strong> memiliki nilai 0 NA.<\/span><\/li>\n<li> <span style=\"color: #000000;\">Kolom <strong>poin<\/strong> mempunyai nilai 1 NA.<\/span><\/li>\n<li> <span style=\"color: #000000;\">Kolom <strong>assist<\/strong> memiliki 2 nilai NA.<\/span><\/li>\n<li> <span style=\"color: #000000;\">Kolom <strong>pentalan<\/strong> memiliki nilai 0 NA.<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Hasil ini sesuai dengan contoh sebelumnya.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Catatan<\/strong> : Metode dplyr cenderung lebih cepat dibandingkan metode dasar R ketika bekerja dengan frame data yang sangat besar.<\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Sumber daya tambahan<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">Tutorial berikut menjelaskan cara melakukan tugas umum lainnya 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\/menyelesaikan-r-kasus\/\" target=\"_blank\" rel=\"noopener\">Cara menggunakan complete.cases di R<\/a><br \/> <a href=\"https:\/\/statorials.org\/id\/hapus-baris-kosong-di-r\/\" target=\"_blank\" rel=\"noopener\">Cara menghapus baris kosong dari bingkai data di R<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Anda dapat menggunakan metode berikut untuk menghitung jumlah nilai NA di setiap kolom bingkai data di R: Metode 1: Hitung nilai NA pada setiap kolom menggunakan basis R sapply(df, function (x) sum(is. na (x))) Metode 2: Hitung nilai NA di setiap kolom menggunakan dplyr library (dplyr) df %&gt;% summarise(across(everything(), ~ sum(is. na (.)))) Contoh berikut [&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>A: menghitung jumlah nilai NA pada setiap kolom \u2013 Statorials<\/title>\n<meta name=\"description\" content=\"Tutorial ini menjelaskan cara menghitung jumlah nilai NA pada setiap kolom frame data di R, termasuk contohnya.\" \/>\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\/r-menghitung-na-di-setiap-kolom\/\" \/>\n<meta property=\"og:locale\" content=\"id_ID\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"A: menghitung jumlah nilai NA pada setiap kolom \u2013 Statorials\" \/>\n<meta property=\"og:description\" content=\"Tutorial ini menjelaskan cara menghitung jumlah nilai NA pada setiap kolom frame data di R, termasuk contohnya.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/id\/r-menghitung-na-di-setiap-kolom\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-15T01:21:29+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\/r-menghitung-na-di-setiap-kolom\/\",\"url\":\"https:\/\/statorials.org\/id\/r-menghitung-na-di-setiap-kolom\/\",\"name\":\"A: menghitung jumlah nilai NA pada setiap kolom \u2013 Statorials\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/id\/#website\"},\"datePublished\":\"2023-07-15T01:21:29+00:00\",\"dateModified\":\"2023-07-15T01:21:29+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/id\/#\/schema\/person\/3d17a1160dd2d052b7c78e502cb9ec81\"},\"description\":\"Tutorial ini menjelaskan cara menghitung jumlah nilai NA pada setiap kolom frame data di R, termasuk contohnya.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/id\/r-menghitung-na-di-setiap-kolom\/#breadcrumb\"},\"inLanguage\":\"id\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/id\/r-menghitung-na-di-setiap-kolom\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/id\/r-menghitung-na-di-setiap-kolom\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/statorials.org\/id\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"A: hitung jumlah nilai na pada setiap kolom\"}]},{\"@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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