{"id":3329,"date":"2023-07-18T01:47:14","date_gmt":"2023-07-18T01:47:14","guid":{"rendered":"https:\/\/statorials.org\/id\/pilih-n-baris-pertama-r\/"},"modified":"2023-07-18T01:47:14","modified_gmt":"2023-07-18T01:47:14","slug":"pilih-n-baris-pertama-r","status":"publish","type":"post","link":"https:\/\/statorials.org\/id\/pilih-n-baris-pertama-r\/","title":{"rendered":"Cara memilih n baris pertama bingkai data di r (3 contoh)"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Anda dapat menggunakan salah satu metode berikut untuk memilih N baris pertama bingkai data di R:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Metode 1: gunakan head() dari Base R<\/strong><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>head(df, 3)\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\"><strong>Metode 2: Gunakan pengindeksan dari Basis R<\/strong><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>df[1:3, ]\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\"><strong>Metode 3: Gunakan irisan() dari dplyr<\/strong><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008000;\">library<\/span> (dplyr)\n\ndf %&gt;% slice(1:3)<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Contoh berikut menunjukkan cara menggunakan setiap metode dalam praktik dengan kerangka data berikut:<\/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', 'F', 'G'),\n                 points=c(99, 90, 86, 88, 95, 99, 91),\n                 assists=c(33, 28, 31, 39, 34, 35, 40))\n\n<span style=\"color: #008080;\">#view data frame\n<\/span>df\n\n  team points assists\n1 A 99 33\n2 B 90 28\n3 C 86 31\n4 D 88 39\n5 E 95 34\n6 F 99 35\n7 G 91 40\n<\/strong><\/pre>\n<h2> <span style=\"color: #000000;\"><strong>Contoh 1: menggunakan head() dari Base R<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">Salah satu cara untuk memilih N baris pertama dari blok data adalah dengan menggunakan fungsi <strong>head()<\/strong> dari database R:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#select first 3 rows of data frame\n<span style=\"color: #000000;\">head(df, 3)\n<\/span>\n<span style=\"color: #000000;\">team points assists\n1 A 99 33\n2 B 90 28\n3 C 86 31<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Jika Anda menggunakan fungsi <strong>head()<\/strong> tanpa argumen numerik apa pun, R akan secara otomatis memilih 6 baris pertama dari bingkai data:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#select first 6 rows of data frame\n<span style=\"color: #000000;\">head(df)<\/span>\n\n<span style=\"color: #000000;\">team points assists\n1 A 99 33\n2 B 90 28\n3 C 86 31\n4 D 88 39\n5 E 95 34\n6 F 99 35\n<\/span><\/span><\/strong><\/pre>\n<h2> <span style=\"color: #000000;\"><strong>Contoh 2: Gunakan pengindeksan dari Basis R<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">Cara lain untuk memilih N baris pertama dari blok data adalah dengan menggunakan sintaks pengindeksan berbasis R:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#select first 3 rows of data frame\n<span style=\"color: #000000;\">df[1:3, ]\n<\/span>\n<span style=\"color: #000000;\">team points assists\n1 A 99 33\n2 B 90 28\n3 C 86 31<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Anda juga dapat menggunakan sintaks ini untuk memilih hanya N baris pertama dari kolom tertentu:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#select first 3 rows of 'team' and 'points' columns only\n<span style=\"color: #000000;\">df[1:3, c(' <span style=\"color: #ff0000;\">team<\/span> ', ' <span style=\"color: #ff0000;\">points<\/span> ')]\n<\/span>\n<span style=\"color: #000000;\">team points\n1 to 99\n2 B 90\n3 C 86<\/span><\/span><\/strong><\/pre>\n<h2> <span style=\"color: #000000;\"><strong>Contoh 3: Gunakan irisan() dari dplyr<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">Cara lain untuk memilih N baris pertama dari bingkai data adalah dengan menggunakan fungsi <strong>slice()<\/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;\"><span style=\"color: #000000;\"><span style=\"color: #008000;\">library<\/span> (dplyr)<\/span>\n\n#select first 3 rows of data frame\n<span style=\"color: #000000;\">df %&gt;% slice(1:3)\n<\/span>\n<span style=\"color: #000000;\">team points assists\n1 A 99 33\n2 B 90 28\n3 C 86 31<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\"><strong>Terkait:<\/strong> <a href=\"https:\/\/statorials.org\/id\/irisan-dplyr\/\" target=\"_blank\" rel=\"noopener\">Cara Menggunakan Fungsi Slice() di dplyr (Dengan Contoh)<\/a><\/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\/r-tambahkan-ke-kerangka-data\/\" target=\"_blank\" rel=\"noopener\">Bagaimana cara menambahkan baris ke bingkai data di R<\/a><br \/> Cara menghapus baris duplikat di R<br \/> <a href=\"https:\/\/statorials.org\/id\/jumlah-baris-tertentu-di-r\/\" target=\"_blank\" rel=\"noopener\">Cara menjumlahkan baris tertentu di R<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Anda dapat menggunakan salah satu metode berikut untuk memilih N baris pertama bingkai data di R: Metode 1: gunakan head() dari Base R head(df, 3) Metode 2: Gunakan pengindeksan dari Basis R df[1:3, ] Metode 3: Gunakan irisan() dari dplyr library (dplyr) df %&gt;% slice(1:3) Contoh berikut menunjukkan cara menggunakan setiap metode dalam praktik dengan [&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 memilih N baris pertama dari bingkai data di R (3 contoh) - Statologi<\/title>\n<meta name=\"description\" content=\"Tutorial ini menjelaskan cara memilih N baris pertama dari bingkai data di R, dengan beberapa contoh.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, 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