{"id":1814,"date":"2023-07-24T21:27:29","date_gmt":"2023-07-24T21:27:29","guid":{"rendered":"https:\/\/statorials.org\/id\/r-periksa-tipe-data\/"},"modified":"2023-07-24T21:27:29","modified_gmt":"2023-07-24T21:27:29","slug":"r-periksa-tipe-data","status":"publish","type":"post","link":"https:\/\/statorials.org\/id\/r-periksa-tipe-data\/","title":{"rendered":"Cara mengecek tipe data di r (dengan contoh)"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Anda dapat menggunakan fungsi berikut untuk memeriksa tipe data variabel di R:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#check data type of one variable<\/span>\nclass(x)\n\n<span style=\"color: #008080;\">#check data type of every variable in data frame\n<\/span>str(df)\n\n<span style=\"color: #008080;\">#check if a variable is a specific data type<\/span>\nis. <span style=\"color: #3366ff;\">factor<\/span> (x)\nis. <span style=\"color: #3366ff;\">numeric<\/span> (x)\nis. <span style=\"color: #3366ff;\">logical<\/span> (x)<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Contoh berikut menunjukkan cara menggunakan fungsi-fungsi ini dalam praktik.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Contoh 1: Periksa tipe data suatu variabel<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Kode berikut menunjukkan cara memeriksa tipe data suatu variabel di R:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#define variable <em>x\n<\/em><span style=\"color: #000000;\">x &lt;- c(\u201c <span style=\"color: #ff0000;\">Andy<\/span> \u201d, \u201c <span style=\"color: #ff0000;\">Bob<\/span> \u201d, \u201c <span style=\"color: #ff0000;\">Chad<\/span> \u201d, \u201c <span style=\"color: #ff0000;\">Dave<\/span> \u201d, \u201c <span style=\"color: #ff0000;\">Eric<\/span> \u201d, \u201c <span style=\"color: #ff0000;\">Frank<\/span> \u201d)<\/span>\n\n#check data type of <em>x<\/em><\/span>\nclass(x)\n\n[1] \u201ccharacter\u201d\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Kita dapat melihat bahwa <em>x<\/em> adalah variabel <strong>karakter<\/strong> .<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Contoh 2: Periksa tipe data setiap variabel dalam bingkai data<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Kode berikut menunjukkan cara memeriksa tipe data setiap variabel 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\n<\/span>df &lt;- data. <span style=\"color: #3366ff;\">frame<\/span> (x=c(1, 3, 4, 4, 6),\n                 y=c(\"A\", \"B\", \"C\", \"D\", \"E\"),\n                 z=c(TRUE, TRUE, FALSE, TRUE, FALSE))\n\n<span style=\"color: #008080;\">#view data frame\n<\/span>df\n\n  X Y Z\n1 1 A TRUE\n2 3 B TRUE\n3 4 C FALSE\n4 4 D TRUE\n5 6 E FALSE\n\n<span style=\"color: #008080;\">#find data type of every variable in data frame\n<\/span>str(df)\n\n'data.frame': 5 obs. of 3 variables:\n $x:num 1 3 4 4 6\n $y: chr \"A\" \"B\" \"C\" \"D\" ...\n $ z: logi TRUE TRUE FALSE TRUE FALSE<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\"><span style=\"color: #000000;\">Dari hasilnya kita dapat melihat:<\/span><\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">Variabel x adalah variabel <strong>numerik<\/strong> .<\/span><\/li>\n<li> <span style=\"color: #000000;\">Variabel y adalah variabel <strong>karakter<\/strong> .<\/span><\/li>\n<li> <span style=\"color: #000000;\">Variabel z adalah variabel <strong>logis<\/strong> .<\/span><\/li>\n<\/ul>\n<h3> <span style=\"color: #000000;\"><strong>Contoh 3: Periksa apakah variabel adalah tipe data tertentu<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Kode berikut menunjukkan cara memeriksa apakah variabel tertentu dalam bingkai data adalah variabel numerik:<\/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\n<\/span>df &lt;- data. <span style=\"color: #3366ff;\">frame<\/span> (x=c(1, 3, 4, 4, 6),\n                 y=c(\"A\", \"B\", \"C\", \"D\", \"E\"),\n                 z=c(TRUE, TRUE, FALSE, TRUE, FALSE))\n\n<span style=\"color: #008080;\">#check if x column is numeric\n<\/span>is. <span style=\"color: #3366ff;\">numeric<\/span> (df$x)\n\n[1] TRUE\n<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Karena keluaran mengembalikan <strong>TRUE<\/strong> , ini menunjukkan bahwa kolom x dalam bingkai data adalah numerik.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Kita juga dapat menggunakan fungsi <a href=\"https:\/\/statorials.org\/id\/panduan-untuk-menerapkan-lapply-sapply-dan-tapply-di-r\/\" target=\"_blank\" rel=\"noopener\">sapply()<\/a> untuk memeriksa apakah setiap kolom dalam bingkai data berupa angka:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008080;\">#check if every column in data frame is numeric\n<\/span>sapply(df, <span style=\"color: #3366ff;\">is.numeric<\/span> )\n\n    xyz TRUE FALSE FALSE \n<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Kita dapat melihat bahwa kolom x bersifat numerik, sedangkan kolom y dan z tidak.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Sumber daya tambahan<\/strong><\/span><\/h3>\n<p> <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\/karakter-numerik-di-r\/\" target=\"_blank\" rel=\"noopener\">Cara mengubah karakter menjadi numerik di R<\/a><br \/> <a href=\"https:\/\/statorials.org\/id\/ubah-nomor-tanggal-menjadi-r\/\" target=\"_blank\" rel=\"noopener\">Bagaimana cara mengubah angka menjadi tanggal di R<\/a><br \/> <a href=\"https:\/\/statorials.org\/id\/mengonversi-string-menjadi-tanggal-di-r\/\" target=\"_blank\" rel=\"noopener\">Cara mengonversi string menjadi tanggal di R<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Anda dapat menggunakan fungsi berikut untuk memeriksa tipe data variabel di R: #check data type of one variable class(x) #check data type of every variable in data frame str(df) #check if a variable is a specific data type is. factor (x) is. numeric (x) is. logical (x) Contoh berikut menunjukkan cara menggunakan fungsi-fungsi ini dalam [&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 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