{"id":3627,"date":"2023-07-16T11:24:36","date_gmt":"2023-07-16T11:24:36","guid":{"rendered":"https:\/\/statorials.org\/id\/ekstrak-r-persegi-dari-lm-ke-r\/"},"modified":"2023-07-16T11:24:36","modified_gmt":"2023-07-16T11:24:36","slug":"ekstrak-r-persegi-dari-lm-ke-r","status":"publish","type":"post","link":"https:\/\/statorials.org\/id\/ekstrak-r-persegi-dari-lm-ke-r\/","title":{"rendered":"Cara mengekstrak r-squared dari fungsi lm() di r"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Anda dapat menggunakan sintaks berikut untuk mengekstrak nilai <a href=\"https:\/\/statorials.org\/id\/nilai-r-kuadrat-yang-bagus\/\" target=\"_blank\" rel=\"noopener\">R-kuadrat<\/a> dan nilai <a href=\"https:\/\/statorials.org\/id\/interpretasi-r-persegi-yang-disesuaikan\/\" target=\"_blank\" rel=\"noopener\">R-kuadrat yang disesuaikan<\/a> dari fungsi <a href=\"https:\/\/statorials.org\/id\/fungsi-lm-di-r\/\" target=\"_blank\" rel=\"noopener\">lm()<\/a> di R:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#extract R-squared\n<span style=\"color: #000000;\">summary(model)$adj.r.squared<\/span>\n\n#extract adjusted R-squared<\/span>\nsummary(model)$adj.r.squared\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Contoh berikut menunjukkan cara menggunakan sintaksis ini dalam praktiknya.<\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Contoh: Ekstrak R-Squared dari lm() di R<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">Misalkan kita memasukkan model regresi linier berganda berikut ke dalam R:<\/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> (rating=c(67, 75, 79, 85, 90, 96, 97),\n                 points=c(8, 12, 16, 15, 22, 28, 24),\n                 assists=c(4, 6, 6, 5, 3, 8, 7),\n                 rebounds=c(1, 4, 3, 3, 2, 6, 7))\n\n<span style=\"color: #008080;\">#fit multiple linear regression model\n<\/span>model &lt;- lm(rating ~ points + assists + rebounds, data=df)\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Kita dapat menggunakan fungsi <strong>ringkasan()<\/strong> untuk menampilkan ringkasan lengkap model regresi:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#view model summary\n<\/span>summary(model)\n\nCall:\nlm(formula = rating ~ points + assists + rebounds, data = df)\n\nResiduals:\n      1 2 3 4 5 6 7 \n-1.5902 -1.7181 0.2413 4.8597 -1.0201 -0.6082 -0.1644 \n\nCoefficients:\n            Estimate Std. Error t value Pr(&gt;|t|)   \n(Intercept) 66.4355 6.6932 9.926 0.00218 **\npoints 1.2152 0.2788 4.359 0.02232 * \nassists -2.5968 1.6263 -1.597 0.20860   \nrebounds 2.8202 1.6118 1.750 0.17847   \n---\nSignificant. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1\n\nResidual standard error: 3.193 on 3 degrees of freedom\nMultiple R-squared: 0.9589, Adjusted R-squared: 0.9179 \nF-statistic: 23.35 on 3 and 3 DF, p-value: 0.01396\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Perhatikan nilai R-kuadrat model dan nilai R-kuadrat yang disesuaikan di dekat bagian bawah keluaran:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">R kuadrat: <strong>0,9589<\/strong><\/span><\/li>\n<li> <span style=\"color: #000000;\">R-kuadrat yang disesuaikan: <strong>0,9179<\/strong><\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Untuk mengekstrak hanya nilai R kuadrat dari model, kita dapat menggunakan sintaks berikut:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#extract R-squared value of regression model\n<span style=\"color: #000000;\">summary(model)$r.squared\n\n[1] 0.9589274\n<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Dan untuk mengekstrak hanya nilai R-kuadrat yang disesuaikan untuk model tersebut, kita dapat menggunakan sintaks berikut:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#extract adjusted R-squared value of regression model\n<span style=\"color: #000000;\">summary(model)$adj.r.squared\n\n[1] 0.9178548\n<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Perhatikan bahwa nilai R-squared dan R-squared yang disesuaikan ini sesuai dengan nilai yang kita lihat sebelumnya di seluruh ringkasan hasil regresi.<\/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\/regresi-linier-sederhana-di-r\/\" target=\"_blank\" rel=\"noopener\">Cara melakukan regresi linier sederhana di R<\/a><br \/> <a href=\"https:\/\/statorials.org\/id\/regresi-linier-berganda-r\/\" target=\"_blank\" rel=\"noopener\">Cara melakukan regresi linier berganda di R<\/a><br \/> <a href=\"https:\/\/statorials.org\/id\/sisa-jejak-r\/\" target=\"_blank\" rel=\"noopener\">Cara membuat plot sisa di R<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Anda dapat menggunakan sintaks berikut untuk mengekstrak nilai R-kuadrat dan nilai R-kuadrat yang disesuaikan dari fungsi lm() di R: #extract R-squared summary(model)$adj.r.squared #extract adjusted R-squared summary(model)$adj.r.squared Contoh berikut menunjukkan cara menggunakan sintaksis ini dalam praktiknya. Contoh: Ekstrak R-Squared dari lm() di R Misalkan kita memasukkan model regresi linier berganda berikut ke dalam R: #create data [&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 mengekstrak R-Squared dari fungsi lm() di R - Statorials<\/title>\n<meta name=\"description\" content=\"Tutorial ini menjelaskan cara mengekstrak nilai r kuadrat dari fungsi lm() di R, dengan sebuah 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\/ekstrak-r-persegi-dari-lm-ke-r\/\" \/>\n<meta property=\"og:locale\" content=\"id_ID\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cara mengekstrak R-Squared dari fungsi lm() di R - Statorials\" \/>\n<meta property=\"og:description\" content=\"Tutorial ini menjelaskan cara mengekstrak nilai r kuadrat dari fungsi lm() di R, dengan sebuah contoh.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/id\/ekstrak-r-persegi-dari-lm-ke-r\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-16T11:24:36+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\/ekstrak-r-persegi-dari-lm-ke-r\/\",\"url\":\"https:\/\/statorials.org\/id\/ekstrak-r-persegi-dari-lm-ke-r\/\",\"name\":\"Cara mengekstrak R-Squared dari fungsi lm() di R - Statorials\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/id\/#website\"},\"datePublished\":\"2023-07-16T11:24:36+00:00\",\"dateModified\":\"2023-07-16T11:24:36+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/id\/#\/schema\/person\/3d17a1160dd2d052b7c78e502cb9ec81\"},\"description\":\"Tutorial ini menjelaskan cara mengekstrak nilai r kuadrat dari fungsi lm() di R, dengan sebuah contoh.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/id\/ekstrak-r-persegi-dari-lm-ke-r\/#breadcrumb\"},\"inLanguage\":\"id\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/id\/ekstrak-r-persegi-dari-lm-ke-r\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/id\/ekstrak-r-persegi-dari-lm-ke-r\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/statorials.org\/id\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Cara mengekstrak r-squared dari fungsi lm() di r\"}]},{\"@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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