{"id":1129,"date":"2023-07-27T13:54:22","date_gmt":"2023-07-27T13:54:22","guid":{"rendered":"https:\/\/statorials.org\/id\/uji-korelasi-di-r\/"},"modified":"2023-07-27T13:54:22","modified_gmt":"2023-07-27T13:54:22","slug":"uji-korelasi-di-r","status":"publish","type":"post","link":"https:\/\/statorials.org\/id\/uji-korelasi-di-r\/","title":{"rendered":"Cara melakukan uji korelasi di r (dengan contoh)"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Salah satu cara untuk mengukur hubungan antara dua variabel adalah dengan menggunakan <a href=\"https:\/\/statorials.org\/id\/koefisien-korelasi-pearson-1\/\" target=\"_blank\" rel=\"noopener noreferrer\">koefisien korelasi Pearson<\/a> , yang merupakan ukuran hubungan linier antara dua variabel <em>.<\/em><\/span><\/p>\n<p> <span style=\"color: #000000;\">Itu selalu mengambil nilai antara -1 dan 1 di mana:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">-1 menunjukkan korelasi linier negatif sempurna antara dua variabel<\/span><\/li>\n<li> <span style=\"color: #000000;\">0 menunjukkan tidak ada korelasi linier antara dua variabel<\/span><\/li>\n<li> <span style=\"color: #000000;\">Angka 1 menunjukkan korelasi linier positif sempurna antara dua variabel<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Untuk menentukan apakah koefisien korelasi signifikan secara statistik, Anda dapat menghitung skor-t dan nilai-p yang sesuai.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Rumus untuk menghitung t-score suatu koefisien korelasi (r) adalah:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>t<\/strong> = r * \u221a <span style=\"border-top: 1px solid black;\">n-2<\/span> \/ \u221a <span style=\"border-top: 1px solid black;\">1-r <sup>2<\/sup><\/span><\/span><\/p>\n<p> <span style=\"color: #000000;\">Nilai p dihitung sebagai nilai p dua sisi yang sesuai untuk distribusi t dengan n-2 derajat kebebasan.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Contoh: uji korelasi pada R<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Untuk menentukan apakah koefisien korelasi antara dua variabel signifikan secara statistik, Anda dapat melakukan uji korelasi di R menggunakan sintaks berikut:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>cor.test(x, y, metode=c(\u201cpearson\u201d, \u201ckendall\u201d, \u201ctombak\u201d))<\/strong><\/span><\/p>\n<p> <span style=\"color: #000000;\">Emas:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\"><strong>x, y:<\/strong> vektor data digital.<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>metode:<\/strong> Metode yang digunakan untuk menghitung korelasi antara dua vektor. Standarnya adalah &#8220;Pearson&#8221;.<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Misalnya, kita mempunyai dua vektor berikut di R:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>x &lt;- c(2, 3, 3, 5, 6, 9, 14, 15, 19, 21, 22, 23)\ny &lt;- c(23, 24, 24, 23, 17, 28, 38, 34, 35, 39, 41, 43)\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Sebelum melakukan uji korelasi antara kedua variabel, kita dapat membuat diagram sebar cepat untuk memvisualisasikan hubungannya:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#create scatterplot<\/span>\nplot(x, y, pch= <span style=\"color: #008000;\">16<\/span> )\n<\/strong><\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-11378 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/dispersionr1.png\" alt=\"Uji korelasi pada R\" width=\"491\" height=\"438\" srcset=\"\" sizes=\"\"><\/p>\n<p> <span style=\"color: #000000;\">Tampaknya terdapat korelasi positif antara kedua variabel tersebut. Artinya, ketika satu meningkat, maka yang lain cenderung meningkat juga.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Untuk melihat apakah korelasi ini signifikan secara statistik, kita dapat melakukan uji korelasi:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#perform correlation test between the two vectors<\/span>\ncor.test(x, y)\n\n\tPearson's product-moment correlation\n\ndata: x and y\nt = 7.8756, df = 10, p-value = 1.35e-05\nalternative hypothesis: true correlation is not equal to 0\n95 percent confidence interval:\n 0.7575203 0.9799783\nsample estimates:\n      horn \n0.9279869<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Koefisien korelasi kedua vektor tersebut ternyata sebesar <strong>0,9279869<\/strong> .<\/span><\/p>\n<p> <span style=\"color: #000000;\">Statistik ujinya ternyata <strong>7,8756<\/strong> dan nilai p yang sesuai adalah <strong>1,35e-05<\/strong> .<\/span><\/p>\n<p> <span style=\"color: #000000;\">Karena nilai ini kurang dari 0,05, kami mempunyai cukup bukti untuk mengatakan bahwa korelasi antara kedua variabel signifikan secara statistik.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Sumber daya tambahan<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Tutorial berikut memberikan informasi tambahan tentang koefisien korelasi:<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/id\/koefisien-korelasi-pearson-1\/\" target=\"_blank\" rel=\"noopener noreferrer\">Pengantar Koefisien Korelasi Pearson<\/a><br \/> <a href=\"https:\/\/statorials.org\/id\" target=\"_blank\" rel=\"noopener\">Apa yang dianggap sebagai korelasi \u201ckuat\u201d?<\/a><br \/> <a href=\"https:\/\/statorials.org\/id\/hipotesis-korelasi-pearson\/\" target=\"_blank\" rel=\"noopener\">Lima hipotesis korelasi Pearson<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Salah satu cara untuk mengukur hubungan antara dua variabel adalah dengan menggunakan koefisien korelasi Pearson , yang merupakan ukuran hubungan linier antara dua variabel . Itu selalu mengambil nilai antara -1 dan 1 di mana: -1 menunjukkan korelasi linier negatif sempurna antara dua variabel 0 menunjukkan tidak ada korelasi linier antara dua variabel Angka 1 [&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 Melakukan Uji Korelasi di R (Dengan Contoh)<\/title>\n<meta name=\"description\" content=\"Tutorial ini menjelaskan cara melakukan uji korelasi antara dua variabel 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\/uji-korelasi-di-r\/\" \/>\n<meta property=\"og:locale\" content=\"id_ID\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cara Melakukan Uji Korelasi di R (Dengan Contoh)\" \/>\n<meta property=\"og:description\" content=\"Tutorial ini menjelaskan cara melakukan uji korelasi antara dua variabel di R, dengan beberapa contoh.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/id\/uji-korelasi-di-r\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-27T13:54:22+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/dispersionr1.png\" \/>\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\/uji-korelasi-di-r\/\",\"url\":\"https:\/\/statorials.org\/id\/uji-korelasi-di-r\/\",\"name\":\"Cara Melakukan Uji Korelasi di R (Dengan Contoh)\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/id\/#website\"},\"datePublished\":\"2023-07-27T13:54:22+00:00\",\"dateModified\":\"2023-07-27T13:54:22+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/id\/#\/schema\/person\/3d17a1160dd2d052b7c78e502cb9ec81\"},\"description\":\"Tutorial ini menjelaskan cara melakukan uji korelasi antara dua variabel di R, dengan beberapa contoh.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/id\/uji-korelasi-di-r\/#breadcrumb\"},\"inLanguage\":\"id\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/id\/uji-korelasi-di-r\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/id\/uji-korelasi-di-r\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/statorials.org\/id\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Cara melakukan uji korelasi 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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