{"id":983,"date":"2023-07-28T02:41:13","date_gmt":"2023-07-28T02:41:13","guid":{"rendered":"https:\/\/statorials.org\/id\/python-kecil\/"},"modified":"2023-07-28T02:41:13","modified_gmt":"2023-07-28T02:41:13","slug":"python-kecil","status":"publish","type":"post","link":"https:\/\/statorials.org\/id\/python-kecil\/","title":{"rendered":"Cara menghitung smape dengan python"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\"><strong>Symmetric Mean Absolute Percentage Error (SMAPE)<\/strong> digunakan untuk mengukur akurasi prediksi model. Ini dihitung sebagai berikut:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>SMAPE<\/strong> = (1\/n) * \u03a3(|perkiraan \u2013 aktual| \/ ((|aktual| + |perkiraan|)\/2) * 100<\/span><\/p>\n<p> <span style=\"color: #000000;\">Emas:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\"><strong>\u03a3<\/strong> \u2013 simbol yang berarti \u201cjumlah\u201d<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>n<\/strong> \u2013 ukuran sampel<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>nyata<\/strong> \u2013 nilai sebenarnya dari data<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>perkiraan<\/strong> \u2013 nilai yang diharapkan dari data<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\"><span style=\"color: #000000;\">Tutorial ini menjelaskan cara menghitung SMAPE dengan Python.<\/span><\/span><\/p>\n<h3> <strong>Cara menghitung SMAPE dengan Python<\/strong><\/h3>\n<p> <span style=\"color: #000000;\">Tidak ada fungsi Python bawaan untuk menghitung SMAPE, tetapi kita dapat membuat fungsi sederhana untuk melakukannya:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #107d3f;\">import <span style=\"color: #000000;\">numpy<\/span> as <span style=\"color: #000000;\">np<\/span>\n\n<span style=\"color: #000000;\"><span style=\"color: #008000;\">def<\/span> smape( <span style=\"color: #3366ff;\">a<\/span> , <span style=\"color: #3366ff;\">f<\/span> ):\n    <span style=\"color: #008000;\">return<\/span> 1\/ <span style=\"color: #3366ff;\">len<\/span> (a) * np. <span style=\"color: #3366ff;\">sum<\/span> (2 * np. <span style=\"color: #3366ff;\">abs<\/span> (fa) \/ (np. <span style=\"color: #3366ff;\">abs<\/span> (a) + np. <span style=\"color: #3366ff;\">abs<\/span> (f))*100)\n<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Kita kemudian dapat menggunakan fungsi ini untuk menghitung SMAPE untuk dua tabel: satu yang berisi nilai data aktual dan satu lagi yang berisi nilai data prediksi.<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#define arrays of actual and forecasted data values<\/span>\nactual = np.array([12, 13, 14, 15, 15,22, 27])\nforecast = np.array([11, 13, 14, 14, 15, 16, 18])\n\n<span style=\"color: #008080;\">#calculate SMAPE<\/span>\nsmape(actual, forecast)\n\n12.45302\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Dari hasil tersebut terlihat rata-rata persentase kesalahan absolut simetris untuk model ini adalah <strong>12.45302%<\/strong> .<\/span><\/p>\n<h3> <strong><span style=\"color: #000000;\">Sumber daya tambahan<\/span><\/strong><\/h3>\n<p> <a href=\"https:\/\/en.wikipedia.org\/wiki\/Symmetric_mean_absolute_percentage_error\" target=\"_blank\" rel=\"noopener noreferrer\">Entri Wikipedia untuk SMAPE<\/a><br \/> <a href=\"https:\/\/robjhyndman.com\/hyndsight\/smape\/\" target=\"_blank\" rel=\"noopener noreferrer\">Pemikiran Rob J. Hyndman tentang SMAPE<\/a><br \/> <a href=\"https:\/\/statorials.org\/id\/kartu-python\/\" target=\"_blank\" rel=\"noopener noreferrer\">Cara menghitung MAPE dengan Python<\/a><br \/> <a href=\"https:\/\/statorials.org\/id\/kartu-r\/\" target=\"_blank\" rel=\"noopener noreferrer\">Cara menghitung MAPE di R<\/a><br \/> <a href=\"https:\/\/statorials.org\/id\/kartu-excel\/\" target=\"_blank\" rel=\"noopener noreferrer\">Cara Menghitung MAPE di Excel<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Symmetric Mean Absolute Percentage Error (SMAPE) digunakan untuk mengukur akurasi prediksi model. Ini dihitung sebagai berikut: SMAPE = (1\/n) * \u03a3(|perkiraan \u2013 aktual| \/ ((|aktual| + |perkiraan|)\/2) * 100 Emas: \u03a3 \u2013 simbol yang berarti \u201cjumlah\u201d n \u2013 ukuran sampel nyata \u2013 nilai sebenarnya dari data perkiraan \u2013 nilai yang diharapkan dari data Tutorial ini [&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 SMAPE dengan Python - Statorials<\/title>\n<meta name=\"description\" content=\"Penjelasan sederhana cara menghitung SMAPE dengan Python, beserta 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\/python-kecil\/\" \/>\n<meta property=\"og:locale\" content=\"id_ID\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cara menghitung SMAPE dengan Python - Statorials\" \/>\n<meta property=\"og:description\" content=\"Penjelasan sederhana cara menghitung SMAPE dengan Python, beserta contoh.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/id\/python-kecil\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-28T02:41:13+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\/python-kecil\/\",\"url\":\"https:\/\/statorials.org\/id\/python-kecil\/\",\"name\":\"Cara menghitung SMAPE dengan Python - Statorials\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/id\/#website\"},\"datePublished\":\"2023-07-28T02:41:13+00:00\",\"dateModified\":\"2023-07-28T02:41:13+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/id\/#\/schema\/person\/3d17a1160dd2d052b7c78e502cb9ec81\"},\"description\":\"Penjelasan sederhana cara menghitung SMAPE dengan Python, beserta contoh.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/id\/python-kecil\/#breadcrumb\"},\"inLanguage\":\"id\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/id\/python-kecil\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/id\/python-kecil\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/statorials.org\/id\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Cara menghitung smape dengan python\"}]},{\"@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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