{"id":3020,"date":"2023-07-19T14:48:25","date_gmt":"2023-07-19T14:48:25","guid":{"rendered":"https:\/\/statorials.org\/id\/fungsi-panjang-di-r\/"},"modified":"2023-07-19T14:48:25","modified_gmt":"2023-07-19T14:48:25","slug":"fungsi-panjang-di-r","status":"publish","type":"post","link":"https:\/\/statorials.org\/id\/fungsi-panjang-di-r\/","title":{"rendered":"Cara menggunakan fungsi length() di r (4 contoh)"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Anda dapat menggunakan fungsi <b>length()<\/b> di R untuk menghitung panjang vektor, daftar, dan objek lainnya.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Fungsi ini menggunakan sintaks dasar berikut:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>length(x)\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Emas:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\"><strong>x<\/strong> : Nama benda yang akan dihitung panjangnya<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Contoh berikut menunjukkan cara menggunakan fungsi ini dalam berbagai skenario.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Contoh 1: Gunakan length() dengan Vector<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Kode berikut menunjukkan cara menggunakan fungsi <strong>length()<\/strong> untuk menghitung jumlah elemen dalam vektor:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008080;\">#createvector\n<\/span>my_vector &lt;- c(2, 7, 6, 6, 9, 10, 14, 13, 4, 20, NA)\n\n<span style=\"color: #008080;\">#calculate length of vector\n<\/span>length(my_vector)\n\n[1] 11<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Kita dapat melihat bahwa vektor mempunyai total 11 elemen.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Perhatikan bahwa <strong>length()<\/strong> juga menghitung nilai NA.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Untuk mengecualikan nilai NA saat menghitung panjang suatu vektor, kita dapat menggunakan sintaks berikut:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008080;\">#createvector\n<\/span>my_vector &lt;- c(2, 7, 6, 6, 9, 10, 14, 13, 4, 20, NA)\n\n<span style=\"color: #008080;\">#calculate length of vector, excluding NA values\n<\/span>sum(!is. <span style=\"color: #3366ff;\">na<\/span> (my_vector))\n\n[1] 10<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Kita dapat melihat bahwa vektor tersebut memiliki 10 elemen yang merupakan nilai non-NA.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Contoh 2:<\/strong><\/span> <span style=\"color: #000000;\"><strong>Gunakan length() dengan Daftar<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Kode berikut menunjukkan cara menggunakan fungsi <b>length()<\/b> untuk menghitung panjang seluruh daftar serta panjang elemen tertentu dalam daftar:<\/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 list\n<\/span>my_list &lt;- list(A=1:5, B=c('hey', 'hi'), C=c(3, 5, 7))\n\n<span style=\"color: #008080;\">#calculate length of entire list\n<\/span>length(my_list)\n\n[1] 3\n\n<span style=\"color: #008080;\">#calculate length of first element in list\n<\/span>length(my_list[[ <span style=\"color: #008000;\">1<\/span> ]])\n\n[1] 5<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\"><span style=\"color: #000000;\">Dari hasilnya kita dapat melihat bahwa list tersebut memiliki total <strong>3<\/strong> elemen dan elemen pertama dalam list memiliki panjang <strong>5<\/strong> .<\/span><\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Contoh 3:<\/strong><\/span> <span style=\"color: #000000;\"><strong>Menggunakan length() dengan Data Frame<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Jika kita menggunakan fungsi <b>length()<\/b> dengan bingkai data di R, ini akan mengembalikan jumlah kolom 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<\/span>\ndf &lt;- data. <span style=\"color: #3366ff;\">frame<\/span> (team=c('A', 'B', 'B', 'B', 'C', 'D'),\n                 points=c(10, 15, 29, 24, 30, 31))\n\n<span style=\"color: #008080;\">#view data frame<\/span>\ndf\n\n  team points\n1 to 10\n2 B 15\n3 B 29\n4 B 24\n5 C 30\n6 D 31\n\n<span style=\"color: #008080;\">#calculate length of data frame (returns number of columns)\n<\/span>length(df)\n\n[1] 2 \n<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\"><span style=\"color: #000000;\">Jika kita ingin menghitung jumlah baris, kita dapat menggunakan fungsi <strong>now()<\/strong> :<\/span><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008080;\">#calculate number of rows in data frame<\/span>\nnrow(df)\n\n[1] 6\n<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Ini memberitahu kita bahwa ada total <strong>6<\/strong> baris dalam bingkai data.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Contoh 4:<\/strong><\/span> <span style=\"color: #000000;\"><strong>Menggunakan length() dengan String<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Jika kita menggunakan fungsi <b>length()<\/b> dengan string di R, biasanya hanya akan mengembalikan nilai satu:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008080;\">#define string<\/span>\nmy_string &lt;- \"hey there\"\n\n<span style=\"color: #008080;\">#calculate length of string\n<\/span>length(my_string)\n\n[1] 1<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Untuk benar-benar menghitung jumlah karakter dalam sebuah string, kita dapat menggunakan fungsi <strong>nchar()<\/strong> sebagai gantinya:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008080;\">#define string<\/span>\nmy_string &lt;- \"hey there\"\n\n<span style=\"color: #008080;\">#calculate total characters in string\n<\/span>nchar(my_string)\n\n[1] 9\n<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Ini memberitahu kita bahwa ada total <strong>9<\/strong> karakter dalam string, termasuk spasi.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Sumber daya tambahan<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Tutorial berikut menjelaskan cara melakukan operasi umum lainnya di R:<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/id\/hitung-berdasarkan-kelompok-r\/\" target=\"_blank\" rel=\"noopener\">Cara menghitung observasi per kelompok di R<\/a><br \/> <a href=\"https:\/\/statorials.org\/id\/jumlah-baris-di-r\/\" target=\"_blank\" rel=\"noopener\">Cara menghitung jumlah baris di R<\/a><br \/> <a href=\"https:\/\/statorials.org\/id\/dplyr-pilih-baris-acak\/\" target=\"_blank\" rel=\"noopener\">Cara memilih baris acak di R<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Anda dapat menggunakan fungsi length() di R untuk menghitung panjang vektor, daftar, dan objek lainnya. Fungsi ini menggunakan sintaks dasar berikut: length(x) Emas: x : Nama benda yang akan dihitung panjangnya Contoh berikut menunjukkan cara menggunakan fungsi ini dalam berbagai skenario. Contoh 1: Gunakan length() dengan Vector Kode berikut menunjukkan cara menggunakan fungsi length() untuk [&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 fungsi length() di R (4 contoh) - Statorial<\/title>\n<meta name=\"description\" content=\"Tutorial ini menjelaskan cara menggunakan fungsi length() 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-panjang-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 length() di R (4 contoh) - Statorial\" \/>\n<meta property=\"og:description\" content=\"Tutorial ini menjelaskan cara menggunakan fungsi length() di R, dengan beberapa contoh.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/id\/fungsi-panjang-di-r\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-19T14:48:25+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\/fungsi-panjang-di-r\/\",\"url\":\"https:\/\/statorials.org\/id\/fungsi-panjang-di-r\/\",\"name\":\"Cara menggunakan fungsi length() di R (4 contoh) - Statorial\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/id\/#website\"},\"datePublished\":\"2023-07-19T14:48:25+00:00\",\"dateModified\":\"2023-07-19T14:48:25+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/id\/#\/schema\/person\/3d17a1160dd2d052b7c78e502cb9ec81\"},\"description\":\"Tutorial ini menjelaskan cara menggunakan fungsi length() di R, dengan beberapa contoh.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/id\/fungsi-panjang-di-r\/#breadcrumb\"},\"inLanguage\":\"id\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/id\/fungsi-panjang-di-r\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/id\/fungsi-panjang-di-r\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/statorials.org\/id\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Cara menggunakan fungsi length() di r (4 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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