{"id":1548,"date":"2023-07-25T22:42:57","date_gmt":"2023-07-25T22:42:57","guid":{"rendered":"https:\/\/statorials.org\/id\/plot-regresi-logistik-di-r\/"},"modified":"2023-07-25T22:42:57","modified_gmt":"2023-07-25T22:42:57","slug":"plot-regresi-logistik-di-r","status":"publish","type":"post","link":"https:\/\/statorials.org\/id\/plot-regresi-logistik-di-r\/","title":{"rendered":"Cara memplot kurva regresi logistik di r"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Seringkali Anda mungkin ingin memplot kurva model regresi logistik yang sesuai di R.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Untungnya, ini cukup mudah dilakukan dan tutorial ini menjelaskan cara melakukannya di basis R dan ggplot2.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Contoh: menggambar kurva regresi logistik pada basis R<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Kode berikut menunjukkan cara menyesuaikan model regresi logistik menggunakan variabel dari himpunan data mtcars bawaan di R, lalu cara memplot kurva regresi logistik:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#fit logistic regression model\n<\/span>model &lt;- glm(vs ~ hp, data=mtcars, family=binomial)\n\n<span style=\"color: #008080;\">#define new data frame that contains predictor variable\n<\/span>newdata &lt;- data. <span style=\"color: #3366ff;\">frame<\/span> (hp=seq(min(mtcars$hp), max(mtcars$hp),len= <span style=\"color: #008000;\">500<\/span> ))\n\n<span style=\"color: #008080;\">#use fitted model to predict values of vs\n<\/span>newdata$vs = predict(model, newdata, type=\" <span style=\"color: #008000;\">response<\/span> \")\n\n<span style=\"color: #008080;\">#plot logistic regression curve\n<\/span>plot(vs ~hp, data=mtcars, col=\" <span style=\"color: #008000;\">steelblue<\/span> \")\nlines(vs ~ hp, newdata, lwd= <span style=\"color: #008000;\">2<\/span> )\n<\/strong><\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-15345\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/courbelogistique1.png\" alt=\"Kurva regresi logistik pada basis R\" width=\"453\" height=\"408\" srcset=\"\" sizes=\"\"><\/p>\n<p> <span style=\"color: #000000;\">Sumbu x menampilkan nilai variabel prediktor <strong>hp<\/strong> dan sumbu y menampilkan prediksi probabilitas variabel respon <strong>am<\/strong> .<\/span><\/p>\n<p> <span style=\"color: #000000;\">Kita dapat melihat dengan jelas bahwa nilai yang lebih tinggi dari variabel prediktor <strong>hp<\/strong> dikaitkan dengan probabilitas yang lebih rendah dari variabel respons <strong>vs<\/strong> sama dengan 1.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Contoh: memplot kurva regresi logistik di ggplot2<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Kode berikut menunjukkan cara menyesuaikan model regresi logistik yang sama dan cara memplot kurva regresi logistik menggunakan pustaka visualisasi data <a href=\"https:\/\/ggplot2.tidyverse.org\/\" target=\"_blank\" rel=\"noopener\">ggplot2<\/a> :<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #993300;\">library<\/span> (ggplot2)<\/span><\/span>\n\n<span style=\"color: #008080;\">#plot logistic regression curve\n<\/span>ggplot(mtcars, <span style=\"color: #3366ff;\">aes<\/span> (x=hp, y=vs)) + \n  geom_point(alpha=.5) +\n  stat_smooth(method=\" <span style=\"color: #008000;\">glm<\/span> \", se=FALSE, method. <span style=\"color: #3366ff;\">args<\/span> = list(family=binomial))<\/strong> <\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-15346 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/courbelogistique2.png\" alt=\"Kurva regresi logistik di ggplot2\" width=\"422\" height=\"421\" srcset=\"\" sizes=\"\"><\/p>\n<p> <span style=\"color: #000000;\">Perhatikan bahwa kurva ini persis sama dengan yang dihasilkan pada contoh sebelumnya dengan menggunakan basis R.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Jangan ragu untuk mengubah gaya kurva juga. Misalnya, kita dapat mengubah kurva menjadi garis putus-putus merah:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #993300;\">library<\/span> (ggplot2)<\/span><\/span>\n\n<span style=\"color: #008080;\">#plot logistic regression curve\n<\/span>ggplot(mtcars, <span style=\"color: #3366ff;\">aes<\/span> (x=hp, y=vs)) + \n  geom_point(alpha=.5) +\n  stat_smooth(method=\" <span style=\"color: #008000;\">glm<\/span> \", se=FALSE, method. <span style=\"color: #3366ff;\">args<\/span> = list(family=binomial),\n              col=\" <span style=\"color: #008000;\">red<\/span> \", lty= <span style=\"color: #008000;\">2<\/span> )<\/strong> <\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-15348 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/courbelogistique3.png\" alt=\"\" width=\"403\" height=\"407\" srcset=\"\" sizes=\"\"><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Sumber daya tambahan<\/strong><\/span><\/h3>\n<p> <a href=\"https:\/\/statorials.org\/id\/regresi-logistik-1\/\" target=\"_blank\" rel=\"noopener\">Pengantar Regresi Logistik<\/a><br \/> Cara Melakukan Regresi Logistik di R (Langkah demi Langkah)<br \/> <a href=\"https:\/\/statorials.org\/id\/python-regresi-logistik\/\" target=\"_blank\" rel=\"noopener\">Cara Melakukan Regresi Logistik dengan Python (Langkah demi Langkah)<\/a><br \/> <a href=\"https:\/\/statorials.org\/id\/fungsi-seq-di-r\/\" target=\"_blank\" rel=\"noopener\">Cara menggunakan fungsi seq di R<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Seringkali Anda mungkin ingin memplot kurva model regresi logistik yang sesuai di R. Untungnya, ini cukup mudah dilakukan dan tutorial ini menjelaskan cara melakukannya di basis R dan ggplot2. Contoh: menggambar kurva regresi logistik pada basis R Kode berikut menunjukkan cara menyesuaikan model regresi logistik menggunakan variabel dari himpunan data mtcars bawaan di R, lalu [&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 memplot kurva regresi logistik di R - Statorials<\/title>\n<meta name=\"description\" content=\"Tutorial ini menjelaskan cara memplot kurva regresi logistik di basis R dan ggplot2, termasuk contohnya.\" \/>\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\/plot-regresi-logistik-di-r\/\" \/>\n<meta property=\"og:locale\" content=\"id_ID\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cara memplot kurva regresi logistik di R - Statorials\" \/>\n<meta property=\"og:description\" content=\"Tutorial ini menjelaskan cara memplot kurva regresi logistik di basis R dan ggplot2, termasuk contohnya.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/id\/plot-regresi-logistik-di-r\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-25T22:42:57+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/courbelogistique1.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\/plot-regresi-logistik-di-r\/\",\"url\":\"https:\/\/statorials.org\/id\/plot-regresi-logistik-di-r\/\",\"name\":\"Cara memplot kurva regresi logistik di R - Statorials\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/id\/#website\"},\"datePublished\":\"2023-07-25T22:42:57+00:00\",\"dateModified\":\"2023-07-25T22:42:57+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/id\/#\/schema\/person\/3d17a1160dd2d052b7c78e502cb9ec81\"},\"description\":\"Tutorial ini menjelaskan cara memplot kurva regresi logistik di basis R dan ggplot2, termasuk contohnya.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/id\/plot-regresi-logistik-di-r\/#breadcrumb\"},\"inLanguage\":\"id\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/id\/plot-regresi-logistik-di-r\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/id\/plot-regresi-logistik-di-r\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/statorials.org\/id\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Cara memplot kurva regresi logistik 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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