{"id":4489,"date":"2023-07-10T16:58:21","date_gmt":"2023-07-10T16:58:21","guid":{"rendered":"https:\/\/statorials.org\/id\/fitdist-r\/"},"modified":"2023-07-10T16:58:21","modified_gmt":"2023-07-10T16:58:21","slug":"fitdist-r","status":"publish","type":"post","link":"https:\/\/statorials.org\/id\/fitdist-r\/","title":{"rendered":"Cara menggunakan fitdistr() di r agar sesuai dengan distribusi"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Anda dapat menggunakan fungsi <strong>fitdistr()<\/strong> dari paket <strong>MASS<\/strong> di R untuk memperkirakan parameter distribusi dengan memaksimalkan fungsi kemungkinan.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Fungsi ini menggunakan sintaks dasar berikut:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>fitdistr(x, kesenangan padat, \u2026)<\/strong><\/span><\/p>\n<p> <span style=\"color: #000000;\">Emas:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\"><strong>x<\/strong> : Vektor numerik yang mewakili nilai distribusi<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>dosefun<\/strong> : distribusi untuk memperkirakan parameternya<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Perhatikan bahwa argumen <strong>dosefun<\/strong> menerima nama distribusi potensial berikut: <strong>beta<\/strong> , <strong>cauchy<\/strong> , <strong>chi-square<\/strong> , <strong>eksponensial<\/strong> , <strong>gamma<\/strong> , <strong>geometrik<\/strong> , <strong>lognormal<\/strong> , <strong>logistik<\/strong> , <strong>binomial negatif<\/strong> , <strong>normal<\/strong> , <strong>Poisson<\/strong> , <strong>t<\/strong> , dan <strong>Weibull<\/strong> .<\/span><\/p>\n<p> <span style=\"color: #000000;\">Contoh berikut menunjukkan cara menggunakan fungsi <strong>fitdistr()<\/strong> dalam praktiknya.<\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Contoh: Cara menggunakan fungsi fitdistr() untuk menyesuaikan distribusi di R<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">Misalkan kita menggunakan fungsi <strong>rnorm()<\/strong> di R untuk menghasilkan vektor 200 nilai yang mengikuti distribusi normal:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#make this example reproducible\n<span style=\"color: #000000;\">set. <span style=\"color: #3366ff;\">seeds<\/span> (1)<\/span>\n\n#generate sample of 200 observations that follows normal dist with mean=10 and sd=3<\/span>\ndata &lt;- rnorm(200, mean=10, sd=3)\n\n<span style=\"color: #008080;\">#view first 6 observations in sample\n<\/span>head(data)\n\n[1] 8.120639 10.550930 7.493114 14.785842 10.988523 7.538595\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Kita dapat menggunakan fungsi <strong>hist()<\/strong> untuk membuat histogram guna memvisualisasikan distribusi nilai data:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\">hist(data, col=' <span style=\"color: #ff0000;\">steelblue<\/span> ')\n<\/span><\/span><\/strong><\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-11442 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/normaldistr1.png\" alt=\"Hasilkan distribusi normal di R\" width=\"452\" height=\"451\" srcset=\"\" sizes=\"\"><\/p>\n<p> <span style=\"color: #000000;\">Kita dapat melihat bahwa datanya memang tampak terdistribusi normal.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Kita kemudian dapat menggunakan fungsi <strong>fitdistr()<\/strong> untuk memperkirakan parameter distribusi ini:<\/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> (MASS)\n\n<\/span>#estimate parameters of distribution\n<span style=\"color: #000000;\">fitdistr(data, \u201c <span style=\"color: #ff0000;\">normal<\/span> \u201d)\n\n      mean sd    \n  10.1066189 2.7803148 \n (0.1965979) (0.1390157)\n<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Fungsi <strong>fitdistr()<\/strong> memperkirakan vektor nilai mengikuti distribusi normal dengan mean <strong>10.1066189<\/strong> dan standar deviasi <strong>2.7803148<\/strong> .<\/span><\/p>\n<p> <span style=\"color: #000000;\">Nilai-nilai ini seharusnya tidak mengherankan karena kami menghasilkan data menggunakan fungsi <strong>rnorm()<\/strong> dengan nilai rata-rata 10 dan deviasi standar 3.<\/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\/plot-distribusi-normal-r\/\" target=\"_blank\" rel=\"noopener noreferrer\">Cara memplot distribusi normal di R<\/a><br \/> <a href=\"https:\/\/statorials.org\/id\/menghasilkan-distribusi-normal-di-r\/\" target=\"_blank\" rel=\"noopener\">Cara menghasilkan distribusi normal di R<\/a><br \/> <a href=\"https:\/\/statorials.org\/id\/tes-shapiro-wilk-r\/\" target=\"_blank\" rel=\"noopener noreferrer\">Cara melakukan uji normalitas Shapiro-Wilk di R<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Anda dapat menggunakan fungsi fitdistr() dari paket MASS di R untuk memperkirakan parameter distribusi dengan memaksimalkan fungsi kemungkinan. Fungsi ini menggunakan sintaks dasar berikut: fitdistr(x, kesenangan padat, \u2026) Emas: x : Vektor numerik yang mewakili nilai distribusi dosefun : distribusi untuk memperkirakan parameternya Perhatikan bahwa argumen dosefun menerima nama distribusi potensial berikut: beta , cauchy [&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 menggunakan fitdistr() di R agar sesuai dengan distribusi \u2013 Statologi<\/title>\n<meta name=\"description\" content=\"Tutorial ini menjelaskan cara menggunakan fungsi fitdistr() di R agar sesuai dengan distribusi, 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\/fitdist-r\/\" \/>\n<meta property=\"og:locale\" content=\"id_ID\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cara menggunakan fitdistr() di R agar sesuai dengan distribusi \u2013 Statologi\" \/>\n<meta property=\"og:description\" content=\"Tutorial ini menjelaskan cara menggunakan fungsi fitdistr() di R agar sesuai dengan distribusi, termasuk contohnya.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/id\/fitdist-r\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-10T16:58:21+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/normaldistr1.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=\"1 menit\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/statorials.org\/id\/fitdist-r\/\",\"url\":\"https:\/\/statorials.org\/id\/fitdist-r\/\",\"name\":\"Cara menggunakan fitdistr() di R agar sesuai dengan distribusi \u2013 Statologi\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/id\/#website\"},\"datePublished\":\"2023-07-10T16:58:21+00:00\",\"dateModified\":\"2023-07-10T16:58:21+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/id\/#\/schema\/person\/3d17a1160dd2d052b7c78e502cb9ec81\"},\"description\":\"Tutorial ini menjelaskan cara menggunakan fungsi fitdistr() di R agar sesuai dengan distribusi, termasuk contohnya.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/id\/fitdist-r\/#breadcrumb\"},\"inLanguage\":\"id\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/id\/fitdist-r\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/id\/fitdist-r\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/statorials.org\/id\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Cara menggunakan fitdistr() di r agar sesuai dengan distribusi\"}]},{\"@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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