{"id":1623,"date":"2023-07-25T15:11:42","date_gmt":"2023-07-25T15:11:42","guid":{"rendered":"https:\/\/statorials.org\/id\/berarti-kesalahan-absolut-di-r\/"},"modified":"2023-07-25T15:11:42","modified_gmt":"2023-07-25T15:11:42","slug":"berarti-kesalahan-absolut-di-r","status":"publish","type":"post","link":"https:\/\/statorials.org\/id\/berarti-kesalahan-absolut-di-r\/","title":{"rendered":"Cara menghitung rata-rata kesalahan absolut di r"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Dalam statistik, <strong>mean absolute error<\/strong> (MAE) adalah cara untuk mengukur keakuratan model tertentu. Ini dihitung sebagai berikut:<\/span><\/p>\n<p> <span style=\"color: #000000;\">MAE = (1\/n) * \u03a3|y <sub>saya<\/sub> \u2013 x <sub>saya<\/sub> |<\/span><\/p>\n<p> <span style=\"color: #000000;\">Emas:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\"><strong>\u03a3:<\/strong> Simbol Yunani yang berarti \u201cjumlah\u201d<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>y <sub>i<\/sub> :<\/strong> Nilai observasi untuk observasi <sup>ke-i<\/sup><\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>x <sub>i<\/sub> :<\/strong> nilai prediksi pengamatan <sup>ke-i<\/sup><\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>n :<\/strong> Jumlah total observasi<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Kita dapat menghitung rata-rata kesalahan absolut di R menggunakan fungsi <strong>mae (aktual, prediksi)<\/strong> dari paket <strong>Metrics<\/strong> .<\/span><\/p>\n<p> <span style=\"color: #000000;\">Tutorial ini memberikan dua contoh cara menggunakan fitur ini dalam praktik.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Contoh 1: Hitung rata-rata kesalahan absolut antara dua vektor<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Kode berikut menunjukkan cara menghitung rata-rata kesalahan absolut antara vektor nilai yang diamati dan vektor nilai prediksi:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #993300;\">library<\/span> (Metrics)\n\n<span style=\"color: #008080;\">#define observed and predicted values\n<\/span>observed &lt;- c(12, 13, 14, 15, 15, 22, 27, 29, 29, 30, 32)\npredicted &lt;- c(11, 13, 14, 14, 16, 19, 24, 30, 32, 36, 30)\n\n<span style=\"color: #008080;\">#calculate mean absolute error between vectors\n<\/span>mae(observed, predicted)\n\n[1] 1.909091\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Rata-rata kesalahan absolut (MAE) ternyata <strong>1,909<\/strong> .<\/span><\/p>\n<p> <span style=\"color: #000000;\">Hal ini memberitahu kita bahwa rata-rata perbedaan absolut antara nilai yang diamati dan nilai yang diprediksi adalah 1,909.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Contoh 2: Hitung Mean Absolute Error untuk Model Regresi<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Kode berikut menunjukkan cara menyesuaikan <a href=\"https:\/\/statorials.org\/id\/regresi-linier-berganda-r\/\" target=\"_blank\" rel=\"noopener\">model regresi<\/a> di R dan kemudian menghitung rata-rata kesalahan absolut antara prediksi yang dibuat oleh model dan nilai respons aktual yang diamati:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #993300;\">library<\/span> (Metrics)\n\n<span style=\"color: #008080;\">#create data\n<\/span>df &lt;- data. <span style=\"color: #3366ff;\">frame<\/span> (x1=c(1, 3, 3, 4, 4, 6, 6, 8, 9, 3),\n                 x2=c(7, 7, 4, 10, 13, 12, 17, 19, 20, 34),\n                 y=c(17, 18, 19, 20, 24, 28, 25, 29, 30, 32))\n\n<span style=\"color: #008080;\">#view first six rows of data<\/span>\nhead(df)\n\n  x1 x2 y\n1 1 7 17\n2 3 7 18\n3 3 4 19\n4 4 10 20\n5 4 13 24\n6 6 12 28\n\n<span style=\"color: #008080;\">#fit regression model\n<\/span>model &lt;- lm(y~x1+x2, data=df)\n\n<span style=\"color: #008080;\">#calculate MAE between predicted values and observed values<\/span>\nmae(df$y, predict(model))\n\n[1] 1.238241\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Rata-rata kesalahan absolut (MAE) ternyata <strong>1,238<\/strong> .<\/span><\/p>\n<p> <span style=\"color: #000000;\">Hal ini memberitahu kita bahwa rata-rata perbedaan absolut antara nilai yang diamati dan nilai yang diprediksi adalah 1,238.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Secara umum, semakin rendah nilai MAE, semakin baik kemampuan suatu model untuk menyesuaikan dengan kumpulan data. Saat kita membandingkan dua model berbeda, kita dapat membandingkan MAE masing-masing model untuk mengetahui model mana yang paling sesuai dengan kumpulan data.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Sumber daya tambahan<\/strong><\/span><\/h3>\n<p> Berarti Kalkulator Kesalahan Absolut<br \/><a href=\"https:\/\/statorials.org\/id\/berarti-kesalahan-mutlak-unggul\/\" target=\"_blank\" rel=\"noopener\">Cara Menghitung Mean Absolute Error di Excel<\/a><br \/><a href=\"https:\/\/statorials.org\/id\/berarti-kesalahan-mutlak-python\/\" target=\"_blank\" rel=\"noopener\">Cara Menghitung Rata-Rata Kesalahan Absolut dengan Python<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Dalam statistik, mean absolute error (MAE) adalah cara untuk mengukur keakuratan model tertentu. Ini dihitung sebagai berikut: MAE = (1\/n) * \u03a3|y saya \u2013 x saya | Emas: \u03a3: Simbol Yunani yang berarti \u201cjumlah\u201d y i : Nilai observasi untuk observasi ke-i x i : nilai prediksi pengamatan ke-i n : Jumlah total observasi Kita [&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 menghitung rata-rata kesalahan absolut di R - Statorials<\/title>\n<meta name=\"description\" content=\"Tutorial ini menjelaskan cara menghitung mean absolute error (MAE) 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\/berarti-kesalahan-absolut-di-r\/\" \/>\n<meta property=\"og:locale\" content=\"id_ID\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cara menghitung rata-rata kesalahan absolut di R - Statorials\" \/>\n<meta property=\"og:description\" content=\"Tutorial ini menjelaskan cara menghitung mean absolute error (MAE) di R, dengan beberapa contoh.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/id\/berarti-kesalahan-absolut-di-r\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-25T15:11:42+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=\"2 menit\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/statorials.org\/id\/berarti-kesalahan-absolut-di-r\/\",\"url\":\"https:\/\/statorials.org\/id\/berarti-kesalahan-absolut-di-r\/\",\"name\":\"Cara menghitung rata-rata kesalahan absolut di R - Statorials\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/id\/#website\"},\"datePublished\":\"2023-07-25T15:11:42+00:00\",\"dateModified\":\"2023-07-25T15:11:42+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/id\/#\/schema\/person\/3d17a1160dd2d052b7c78e502cb9ec81\"},\"description\":\"Tutorial ini menjelaskan cara menghitung mean absolute error (MAE) di R, dengan beberapa contoh.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/id\/berarti-kesalahan-absolut-di-r\/#breadcrumb\"},\"inLanguage\":\"id\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/id\/berarti-kesalahan-absolut-di-r\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/id\/berarti-kesalahan-absolut-di-r\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/statorials.org\/id\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Cara menghitung rata-rata kesalahan absolut 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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