{"id":1841,"date":"2023-07-24T18:59:24","date_gmt":"2023-07-24T18:59:24","guid":{"rendered":"https:\/\/statorials.org\/id\/ganti-nilai-dalam-bingkai-data-r\/"},"modified":"2023-07-24T18:59:24","modified_gmt":"2023-07-24T18:59:24","slug":"ganti-nilai-dalam-bingkai-data-r","status":"publish","type":"post","link":"https:\/\/statorials.org\/id\/ganti-nilai-dalam-bingkai-data-r\/","title":{"rendered":"Cara mengganti nilai pada data frame di r (dengan contoh)"},"content":{"rendered":"

<\/p>\n

\n

Anda dapat menggunakan sintaks berikut untuk mengganti nilai tertentu dalam bingkai data di R dengan nilai baru:<\/span><\/p>\n

 df[df ==<\/span> ' Old Value<\/span> '] <- ' New value<\/span> '\n<\/strong><\/pre>\n
 Anda dapat menggunakan sintaks berikut untuk mengganti salah satu dari banyak nilai dalam bingkai data dengan nilai baru:<\/span><\/p>\n
 df[df ==<\/span> ' Old Value 1<\/span> ' | df ==<\/span> ' Old Value 2<\/span> '] <- ' New value<\/span> '<\/strong><\/pre>\n
 Dan Anda bisa menggunakan sintaks berikut untuk mengganti nilai tertentu di kolom tertentu pada bingkai data dengan nilai baru:<\/span><\/p>\n
 df['column1'][df['column1'] ==<\/span> ' Old Value<\/span> '] <- ' New value<\/span> '\n<\/strong><\/pre>\n
 Contoh berikut menunjukkan cara menggunakan sintaksis ini dalam praktiknya.<\/span><\/p>\n
 Contoh 1: Ganti nilai tertentu di seluruh bingkai data<\/strong><\/span><\/h3>\n
 Kode berikut menunjukkan cara mengganti nilai tertentu dengan nilai baru di seluruh bingkai data:<\/span><\/p>\n
 #create data frame\n<\/span>df <- data. frame<\/span> (a = as. factor<\/span> (c(1, 5, 7, 8)),\n                 b = c('A', 'B', 'C', 'D'),\n                 c = c(14, 14, 19, 22),\n                 d = c(3, 7, 14, 11))\n\n#view data frame\n<\/span>df\n\n  abcd\n1 1 To 14 3\n2 5 B 14 7\n3 7 C 19 14\n4 8 D 22 11\n\n#replace '14' with '24' across entire data frame\n<\/span>df[df ==<\/span> 14] <- 24\n\n#view updated data frame\n<\/span>df \n\n  abcd\n1 1 To 24 3\n2 5 B 24 7\n3 7 C 19 24\n4 8 D 22 11\n<\/strong><\/pre>\n
 Contoh 2: Ganti salah satu dari beberapa nilai di seluruh bingkai data<\/strong><\/span><\/h3>\n
 Kode berikut menunjukkan cara mengganti salah satu dari beberapa nilai dengan nilai baru di seluruh bingkai data:<\/span><\/p>\n
 #create data frame\n<\/span>df <- data. frame<\/span> (a = as. factor<\/span> (c(1, 5, 7, 8)),\n                 b = c('A', 'B', 'C', 'D'),\n                 c = c(14, 14, 19, 22),\n                 d = c(3, 7, 14, 11))\n\n#view data frame\n<\/span>df\n\n  abcd\n1 1 To 14 3\n2 5 B 14 7\n3 7 C 19 14\n4 8 D 22 11\n\n#replace '14' and '19' with '24' across entire data frame\n<\/span>df[df ==<\/span> 14 | df ==<\/span> 19] <- 24\n\n#view updated data frame\n<\/span>df\n\n  abcd\n1 1 To 24 3\n2 5 B 24 7\n3 7 C 24 24\n4 8 D 22 11\n<\/strong><\/pre>\n
 Contoh 3: Ganti nilai di kolom tertentu pada bingkai data<\/strong><\/span><\/h3>\n
 Kode berikut menunjukkan cara mengganti nilai tertentu dengan nilai baru di kolom tertentu pada bingkai data:<\/span><\/p>\n
 #create data frame\n<\/span>df <- data. frame<\/span> (a = as. factor<\/span> (c(1, 5, 7, 8)),\n                 b = c('A', 'B', 'C', 'D'),\n                 c = c(14, 14, 19, 22),\n                 d = c(3, 7, 14, 11))\n\n#view data frame\n<\/span>df\n\n  abcd\n1 1 To 14 3\n2 5 B 14 7\n3 7 C 19 14\n4 8 D 22 11\n\n#replace '14' in column c<\/em> with '24'\n<\/span>df['c'][df['c'] ==<\/span> 14] <- 24\n\n#view updated data frame\n<\/span>df \n\n  abcd\n1 1 To 24 3\n2 5 B 24 7\n3 7 C 19 14\n4 8 D 22 11<\/strong><\/pre>\n
 Contoh 4: Gantikan nilai variabel faktor dalam bingkai data<\/strong><\/span><\/h3>\n
 Jika Anda mencoba mengganti nilai tertentu dari variabel faktor, Anda akan menemukan pesan peringatan berikut:<\/span><\/p>\n
 #create data frame\n<\/span>df <- data. frame<\/span> (a = as. factor<\/span> (c(1, 5, 7, 8)),\n                 b = c('A', 'B', 'C', 'D'),\n                 c = c(14, 14, 19, 22),\n                 d = c(3, 7, 14, 11))\n\n#attempt to replace '1' with '24' in column a<\/em>\n<\/span>df['a'][df['a'] ==<\/span> 1] <- 24\n\nWarning message:\nIn `[<-.factor`(`*tmp*`, thisvar, value = 24):\n  invalid factor level, NA generated\n     abcd\n1 <NA> A 14 3\n2 5 B 14 7\n3 7 C 19 14\n4 8 D 22 11\n<\/strong><\/pre>\n
 Untuk menghindari peringatan ini, Anda harus terlebih dahulu mengubah variabel faktor menjadi variabel numerik:<\/span><\/p>\n
 #convert column a<\/em> to numeric\n<\/span>df$a <- as. numeric<\/span> (as. character<\/span> (df$a))\n\n#replace '1' with '24' in column a<\/em>\n<\/span>df['a'][df['a'] ==<\/span> 1] <- 24\n\n#view updated data frame<\/span>\ndf\n\n   abcd\n1 24 A 14 3\n2 5 B 14 7\n3 7 C 19 14\n4 8 D 22 11\n<\/strong><\/pre>\n
 Sumber daya tambahan<\/strong><\/span><\/h3>\n
 Bagaimana cara mengganti NA dengan string di R<\/a>
 Bagaimana cara memasukkan semua nilai yang hilang di R<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
Anda dapat menggunakan sintaks berikut untuk mengganti nilai tertentu dalam bingkai data di R dengan nilai baru: df[df == ‘ Old Value ‘] <- ‘ New value ‘ Anda dapat menggunakan sintaks berikut untuk mengganti salah satu dari banyak nilai dalam bingkai data dengan nilai baru: df[df == ‘ Old Value 1 ‘ | df […]<\/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":"\nCara Mengganti Nilai pada Data Frame di R (Dengan Contoh)<\/title>\n<meta name=\"description\" content=\"Tutorial ini menjelaskan cara mengganti nilai tertentu dalam bingkai data 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\/ganti-nilai-dalam-bingkai-data-r\/\" \/>\n<meta property=\"og:locale\" content=\"id_ID\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cara Mengganti Nilai pada Data Frame di R (Dengan Contoh)\" \/>\n<meta property=\"og:description\" content=\"Tutorial ini menjelaskan cara mengganti nilai tertentu dalam bingkai data di R, dengan beberapa contoh.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/id\/ganti-nilai-dalam-bingkai-data-r\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-24T18:59:24+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=\"3 menit\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/statorials.org\/id\/ganti-nilai-dalam-bingkai-data-r\/\",\"url\":\"https:\/\/statorials.org\/id\/ganti-nilai-dalam-bingkai-data-r\/\",\"name\":\"Cara Mengganti Nilai pada Data Frame di R (Dengan Contoh)\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/id\/#website\"},\"datePublished\":\"2023-07-24T18:59:24+00:00\",\"dateModified\":\"2023-07-24T18:59:24+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/id\/#\/schema\/person\/3d17a1160dd2d052b7c78e502cb9ec81\"},\"description\":\"Tutorial ini menjelaskan cara mengganti nilai tertentu dalam bingkai data di R, dengan beberapa contoh.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/id\/ganti-nilai-dalam-bingkai-data-r\/#breadcrumb\"},\"inLanguage\":\"id\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/id\/ganti-nilai-dalam-bingkai-data-r\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/id\/ganti-nilai-dalam-bingkai-data-r\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/statorials.org\/id\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Cara mengganti nilai pada data frame 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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