{"id":1390,"date":"2023-07-26T14:10:10","date_gmt":"2023-07-26T14:10:10","guid":{"rendered":"https:\/\/statorials.org\/id\/karakter-numerik-di-r\/"},"modified":"2023-07-26T14:10:10","modified_gmt":"2023-07-26T14:10:10","slug":"karakter-numerik-di-r","status":"publish","type":"post","link":"https:\/\/statorials.org\/id\/karakter-numerik-di-r\/","title":{"rendered":"Cara mengonversi karakter ke numerik di r (dengan contoh)"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Kita dapat menggunakan sintaks berikut untuk mengubah vektor karakter menjadi vektor numerik di R:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #000000;\">numeric_vector &lt;- as. <span style=\"color: #3366ff;\">numeric<\/span> (character_vector)<\/span>\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Tutorial ini memberikan beberapa contoh penggunaan praktis fungsi ini.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Contoh 1: Ubah vektor karakter menjadi numerik<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Kode berikut menunjukkan cara mengubah vektor karakter menjadi vektor numerik:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #000000;\"><span style=\"color: #008080;\">#create character vector\n<span style=\"color: #000000;\">tanks &lt;- c('12', '14', '19', '22', '26')<\/span>\n\n#convert character vector to numeric vector\n<span style=\"color: #000000;\">numbers &lt;- as. <span style=\"color: #3366ff;\">numeric<\/span> (tanks)\n<\/span>\n#view digital vector\n<span style=\"color: #000000;\">numbers\n\n[1] 12 14 19 22 26\n<\/span>\n#confirm class of numerical vector\n<span style=\"color: #000000;\"><span style=\"color: #993300;\">class<\/span> (numbers)\n\n[1] \"digital\"\n<\/span><\/span><\/span><\/strong><\/pre>\n<h3> <span style=\"color: #000000;\"><strong>Contoh 2: Ubah Kolom Karakter menjadi Numerik<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Kode berikut menunjukkan cara mengonversi kolom tertentu dalam bingkai data dari karakter ke numerik:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #000000;\"><span style=\"color: #008080;\">#create data frame\n<span style=\"color: #000000;\">df &lt;- data. <span style=\"color: #3366ff;\">frame<\/span> (a = c('12', '14', '19', '22', '26'),\n                 b = c(28, 34, 35, 36, 40))<\/span>\n\n#convert column 'a' from character to numeric\n<span style=\"color: #000000;\">df$a &lt;- as. <span style=\"color: #3366ff;\">numeric<\/span> (df$a)<\/span>\n\n#view new data frame\n<span style=\"color: #000000;\">df\n\n   ab\n1 12 28\n2 14 34\n3 19 35\n4 22 36\n5 26 40<\/span>\n\n#confirm class of numerical vector\n<span style=\"color: #000000;\"><span style=\"color: #993300;\">class<\/span> (df$a)\n\n[1] \"digital\"\n<\/span><\/span><\/span><\/strong><\/pre>\n<h3> <span style=\"color: #000000;\"><strong>Contoh 3: Ubah beberapa kolom dari karakter menjadi numerik<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Kode berikut menunjukkan cara mengonversi semua kolom karakter dalam bingkai data karakter menjadi numerik:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #000000;\"><span style=\"color: #008080;\">#create data frame\n<span style=\"color: #000000;\">df &lt;- data. <span style=\"color: #3366ff;\">frame<\/span> (a = c('12', '14', '19', '22', '26'),\n                 b = c('28', '34', '35', '36', '40'),\n                 c = as. <span style=\"color: #3366ff;\">factor<\/span> (c(1, 2, 3, 4, 5)),\n                 d = c(45, 56, 54, 57, 59))\n\n<span style=\"color: #008080;\">#display classes of each column\n<\/span>sapply(df, class)\n\n          abcd\n\"character\" \"character\" \"factor\" \"numeric\" \n\n<span style=\"color: #008080;\">#identify all character columns\n<\/span>chars &lt;- <span style=\"color: #993300;\">sapply<\/span> (df, is. <span style=\"color: #3366ff;\">character<\/span> )\n\n<span style=\"color: #008080;\">#convert all character columns to numeric\n<\/span>df[, chars] &lt;- as. <span style=\"color: #3366ff;\">data<\/span> . <span style=\"color: #3366ff;\">frame<\/span> ( <span style=\"color: #993300;\">apply<\/span> (df[, chars], 2, <span style=\"color: #3366ff;\">as.numeric<\/span> ))\n\n<span style=\"color: #008080;\">#display classes of each column\n<\/span><span style=\"color: #993300;\">sapply<\/span> (df, class)\n\n        abcd\n\"numeric\" \"numeric\" \"factor\" \"numeric\"<\/span><\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Kode ini membuat perubahan berikut pada kolom bingkai data:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\"><strong>Kolom a :<\/strong> Dari karakter ke digital<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>Kolom b:<\/strong> Dari karakter ke digital<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>Kolom c :<\/strong> Tidak berubah (karena merupakan faktor)<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>Kolom d :<\/strong> Tidak berubah (karena sudah berupa angka)<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Dengan menggunakan fungsi <a href=\"https:\/\/statorials.org\/id\/panduan-untuk-menerapkan-lapply-sapply-dan-tapply-di-r\/\" target=\"_blank\" rel=\"noopener\">apply()<\/a> dan <a href=\"https:\/\/statorials.org\/id\/panduan-untuk-menerapkan-lapply-sapply-dan-tapply-di-r\/\" target=\"_blank\" rel=\"noopener\">sapply()<\/a> , kami hanya dapat mengonversi kolom karakter menjadi kolom numerik dan membiarkan semua kolom lainnya tidak berubah.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Sumber daya tambahan<\/strong><\/span><\/h3>\n<p> <a href=\"https:\/\/statorials.org\/id\/nomor-karakter-di-r\/\" target=\"_blank\" rel=\"noopener\">Cara mengubah angka menjadi karakter di R<\/a><br \/> <a href=\"https:\/\/statorials.org\/id\/karakter-untuk-difaktorkan-menjadi-r\/\" target=\"_blank\" rel=\"noopener\">Cara mengubah karakter menjadi faktor di R<\/a><br \/> <a href=\"https:\/\/statorials.org\/id\/ubah-faktor-karakter-menjadi-r\/\" target=\"_blank\" rel=\"noopener\">Cara mengubah faktor menjadi karakter di R<\/a><br \/> <a href=\"https:\/\/statorials.org\/id\/ubah-karakter-menjadi-stempel-waktu-di-r\/\" target=\"_blank\" rel=\"noopener\">Cara mengonversi karakter menjadi stempel waktu di R<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Kita dapat menggunakan sintaks berikut untuk mengubah vektor karakter menjadi vektor numerik di R: numeric_vector &lt;- as. numeric (character_vector) Tutorial ini memberikan beberapa contoh penggunaan praktis fungsi ini. Contoh 1: Ubah vektor karakter menjadi numerik Kode berikut menunjukkan cara mengubah vektor karakter menjadi vektor numerik: #create character vector tanks &lt;- c(&#8217;12&#8217;, &#8217;14&#8217;, &#8217;19&#8217;, &#8217;22&#8217;, &#8217;26&#8217;) [&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 Mengonversi Karakter ke Numerik di R (Dengan Contoh)<\/title>\n<meta name=\"description\" content=\"Tutorial ini menjelaskan cara mengubah karakter menjadi numerik 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\/karakter-numerik-di-r\/\" \/>\n<meta property=\"og:locale\" content=\"id_ID\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cara Mengonversi Karakter ke Numerik di R (Dengan Contoh)\" \/>\n<meta property=\"og:description\" content=\"Tutorial ini menjelaskan cara mengubah karakter menjadi numerik di R, dengan beberapa contoh.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/id\/karakter-numerik-di-r\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-26T14:10:10+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\/karakter-numerik-di-r\/\",\"url\":\"https:\/\/statorials.org\/id\/karakter-numerik-di-r\/\",\"name\":\"Cara Mengonversi Karakter ke Numerik di R (Dengan Contoh)\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/id\/#website\"},\"datePublished\":\"2023-07-26T14:10:10+00:00\",\"dateModified\":\"2023-07-26T14:10:10+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/id\/#\/schema\/person\/3d17a1160dd2d052b7c78e502cb9ec81\"},\"description\":\"Tutorial ini menjelaskan cara mengubah karakter menjadi numerik di R, dengan beberapa contoh.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/id\/karakter-numerik-di-r\/#breadcrumb\"},\"inLanguage\":\"id\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/id\/karakter-numerik-di-r\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/id\/karakter-numerik-di-r\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/statorials.org\/id\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Cara mengonversi karakter ke numerik 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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