{"id":1891,"date":"2023-07-24T14:03:20","date_gmt":"2023-07-24T14:03:20","guid":{"rendered":"https:\/\/statorials.org\/id\/fungsi-sekarang-di-r\/"},"modified":"2023-07-24T14:03:20","modified_gmt":"2023-07-24T14:03:20","slug":"fungsi-sekarang-di-r","status":"publish","type":"post","link":"https:\/\/statorials.org\/id\/fungsi-sekarang-di-r\/","title":{"rendered":"Cara menggunakan fungsi now di r (dengan contoh)"},"content":{"rendered":"

<\/p>\n

\n

Anda dapat menggunakan fungsi now()<\/strong> di R untuk menghitung jumlah baris dalam bingkai data:<\/span><\/p>\n

 #count number of rows in data frame<\/span>\nnrow(df)<\/strong><\/pre>\n
 Contoh berikut menunjukkan cara menggunakan fungsi ini dalam praktik dengan kerangka data berikut:<\/span><\/p>\n
 #create data frame<\/span>\ndf <- data. frame<\/span> (x=c(1, 2, 3, 3, 5, NA),\n                 y=c(8, 14, NA, 25, 29, NA)) \n\n#view data frame\n<\/span>df\n\n   xy\n1 1 8\n2 2 14\n3 3 NA\n4 3 25\n5 5 29\n6 NA NA\n<\/strong><\/pre>\n
 Contoh 1: Hitung baris dalam bingkai data<\/strong><\/span><\/h3>\n
 Kode berikut menunjukkan cara menghitung jumlah baris dalam bingkai data:<\/span><\/p>\n
 #count total rows in data frame<\/span>\nnrow(df)\n\n[1] 6\n<\/strong><\/pre>\n
 Total ada 6<\/strong> baris.<\/span><\/p>\n
 Contoh 2: Hitung baris dengan kondisi dalam bingkai data<\/strong><\/span><\/h3>\n
 Kode berikut menunjukkan cara menghitung jumlah baris yang nilai pada kolom “x” lebih besar dari 3 dan tidak kosong:<\/span><\/p>\n
 #count total rows in data frame where 'x' is greater than 3 and not blank<\/span>\nnrow(df[df$x>3 & !is. na<\/span> (df$x), ])\n\n[1] 1<\/strong><\/pre>\n
 Terdapat 1<\/strong> baris dalam bingkai data yang memenuhi kondisi ini.<\/span><\/p>\n
 Contoh 3: Hitung baris tanpa nilai yang hilang<\/strong><\/span><\/h3>\n
 Kode berikut menunjukkan cara menggunakan fungsi complete.cases()<\/a> untuk menghitung jumlah baris tanpa nilai yang hilang dalam bingkai data:<\/span><\/p>\n
 #count total rows in data frame with no missing values in any column<\/span>\nnrow(df[complete. cases<\/span> (df), ])\n\n[1] 4<\/strong><\/pre>\n
 Ada 4<\/strong> baris tanpa nilai yang hilang dalam bingkai data.<\/span><\/p>\n
 Contoh 4: Hitung baris dengan nilai yang hilang di kolom tertentu<\/strong><\/span><\/h3>\n
 Kode berikut menunjukkan cara menggunakan fungsi is.na()<\/a> untuk secara spesifik menghitung jumlah baris yang memiliki nilai yang hilang di kolom “y”:<\/span><\/p>\n
 #count total rows in with missing value in 'y' column<\/span>\nnrow(df[is. na<\/span> (df$y), ])\n\n[1] 2<\/strong><\/pre>\n
 Ada 2<\/strong> baris dengan nilai yang hilang di kolom “y”.<\/span><\/p>\n
 Sumber daya tambahan<\/strong><\/span><\/h3>\n
 Cara menggunakan fungsi rowSums() di R<\/a>
 Bagaimana menerapkan fungsi ke setiap baris bingkai data di R<\/a>
 Cara menghapus baris dari bingkai data di R berdasarkan kondisi<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
Anda dapat menggunakan fungsi now() di R untuk menghitung jumlah baris dalam bingkai data: #count number of rows in data frame nrow(df) Contoh berikut menunjukkan cara menggunakan fungsi ini dalam praktik dengan kerangka data berikut: #create data frame df <- data. frame (x=c(1, 2, 3, 3, 5, NA), y=c(8, 14, NA, 25, 29, NA)) #view […]<\/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 menggunakan fungsi sekarang di R (dengan contoh) \u2013 Statorial<\/title>\n<meta name=\"description\" content=\"Tutorial ini menjelaskan cara menggunakan fungsi nrow() 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\/fungsi-sekarang-di-r\/\" \/>\n<meta property=\"og:locale\" content=\"id_ID\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cara menggunakan fungsi sekarang di R (dengan contoh) \u2013 Statorial\" \/>\n<meta property=\"og:description\" content=\"Tutorial ini menjelaskan cara menggunakan fungsi nrow() di R, dengan beberapa contoh.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/id\/fungsi-sekarang-di-r\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-24T14:03:20+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=\"1 menit\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/statorials.org\/id\/fungsi-sekarang-di-r\/\",\"url\":\"https:\/\/statorials.org\/id\/fungsi-sekarang-di-r\/\",\"name\":\"Cara menggunakan fungsi sekarang di R (dengan contoh) \u2013 Statorial\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/id\/#website\"},\"datePublished\":\"2023-07-24T14:03:20+00:00\",\"dateModified\":\"2023-07-24T14:03:20+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/id\/#\/schema\/person\/3d17a1160dd2d052b7c78e502cb9ec81\"},\"description\":\"Tutorial ini menjelaskan cara menggunakan fungsi nrow() di R, dengan beberapa contoh.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/id\/fungsi-sekarang-di-r\/#breadcrumb\"},\"inLanguage\":\"id\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/id\/fungsi-sekarang-di-r\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/id\/fungsi-sekarang-di-r\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/statorials.org\/id\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Cara menggunakan fungsi now 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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