{"id":1161,"date":"2023-07-27T11:12:00","date_gmt":"2023-07-27T11:12:00","guid":{"rendered":"https:\/\/statorials.org\/id\/rata-rata-pergerakan-eksponensial-di-r\/"},"modified":"2023-07-27T11:12:00","modified_gmt":"2023-07-27T11:12:00","slug":"rata-rata-pergerakan-eksponensial-di-r","status":"publish","type":"post","link":"https:\/\/statorials.org\/id\/rata-rata-pergerakan-eksponensial-di-r\/","title":{"rendered":"Cara menghitung rata-rata pergerakan eksponensial di r"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Dalam analisis deret waktu, <strong>rata-rata pergerakan<\/strong> hanyalah nilai rata-rata dari sejumlah periode sebelumnya.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Rata-rata pergerakan eksponensial<\/strong> adalah jenis rata-rata bergerak yang memberi bobot lebih pada observasi terkini, yang berarti mampu menangkap tren terkini dengan lebih cepat.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Tutorial ini menjelaskan cara menghitung rata-rata pergerakan eksponensial di R.<\/span><\/p>\n<h3> <strong>Contoh: rata-rata pergerakan eksponensial di R<\/strong><\/h3>\n<p> <span style=\"color: #000000;\">Misalkan kita memiliki bingkai data berikut di R:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#create data frame<\/span>\ndf &lt;- data.frame(period=1:10,\n                 sales=c(25, 20, 14, 16, 27, 20, 12, 15, 14, 19))\n\n<span style=\"color: #008080;\">#view data frame<\/span>\ndf\n\n   period sales\n1 1 25\n2 2 20\n3 3 14\n4 4 16\n5 5 27\n6 6 20\n7 7 12\n8 8 15\n9 9 14\n10 10 19\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Kita dapat menggunakan <a href=\"https:\/\/www.rdocumentation.org\/packages\/pracma\/versions\/1.9.9\/topics\/movavg\" target=\"_blank\" rel=\"noopener noreferrer\">fungsi movavg()<\/a> dari paket <strong>pracma<\/strong> untuk menghitung rata-rata pergerakan tertimbang secara eksponensial untuk beberapa periode sebelumnya.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Fungsi ini menggunakan sintaks berikut:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>bergerak(x, n, ketik=c(\u201cs\u201d, \u201ct\u201d, \u201cw\u201d, \u201cm\u201d, \u201ce\u201d, \u201cr\u201d))<\/strong><\/span><\/p>\n<p> <span style=\"color: #000000;\">Emas:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\"><strong>x :<\/strong> deret waktu dalam bentuk vektor digital<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>n:<\/strong> Jumlah periode sebelumnya yang digunakan sebagai rata-rata<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>type:<\/strong> Jenis rata-rata bergerak yang akan dihitung. Kami akan menggunakan \u201ce\u201d untuk rata-rata pergerakan tertimbang eksponensial.<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Misalnya, berikut cara menghitung rata-rata pergerakan tertimbang secara eksponensial menggunakan empat periode sebelumnya:<\/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> (pracma)<\/span>\n\n#create new column to hold 4-day exponentially weighted moving average<\/span>\ndf$EWM_4day &lt;- <span style=\"color: #3366ff;\">movavg<\/span> (df$sales, n=4, type=' <span style=\"color: #008000;\">e<\/span> ')\n\n<span style=\"color: #008080;\">#view DataFrame<\/span> \ndf\n\n        period sales 4dayEWM\n0 1 25 25.000000\n1 2 20 23.000000\n2 3 14 19.400000\n3 4 16 18.040000\n4 5 27 21.624000\n5 6 20 20.974400\n6 7 12 17.384640\n7 8 15 16.430784\n8 9 14 15.458470\n9 10 19 16.875082<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Kita juga dapat menggunakan pustaka visualisasi ggplot2 untuk memvisualisasikan penjualan relatif terhadap rata-rata pergerakan tertimbang secara eksponensial 4 hari:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #993300;\">library<\/span> (ggplot2)\n<span style=\"color: #993300;\">library<\/span> (reshape2)\n\n<span style=\"color: #008080;\">#melt data into format for easy plotting\n<\/span>df &lt;- <span style=\"color: #3366ff;\">melt<\/span> (df, id.vars = ' <span style=\"color: #008000;\">period<\/span> ', variable.name = ' <span style=\"color: #008000;\">series<\/span> ')\n\n<span style=\"color: #008080;\">#plot sales vs. 4-day exponentially weighted moving average\n<\/span>ggplot(df, <span style=\"color: #3366ff;\">aes<\/span> (period, value)) +\n  geom_line( <span style=\"color: #3366ff;\">aes<\/span> (color=series))\n<\/strong><\/span><\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-11622 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/ewma1.png\" alt=\"Rata-Rata Pergerakan Tertimbang Eksponensial di R\" width=\"492\" height=\"491\" srcset=\"\" sizes=\"\"><\/p>\n<p> <span style=\"color: #000000;\">Garis merah menunjukkan penjualan selama setiap periode dan garis biru menunjukkan rata-rata pergerakan tertimbang secara eksponensial.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Sumber daya tambahan<\/strong><\/span><\/h3>\n<p> <a href=\"https:\/\/statorials.org\/id\/plot-beberapa-kolom-di-r\/\" target=\"_blank\" rel=\"noopener noreferrer\">Cara memplot banyak kolom di R<\/a><br \/> <a href=\"https:\/\/statorials.org\/id\/rata-rata-melintasi-kolom-di-r\/\" target=\"_blank\" rel=\"noopener noreferrer\">Cara menghitung rata-rata kolom di R<\/a><br \/> <a href=\"https:\/\/statorials.org\/id\/r-rata-rata-per-kelompok\/\">Cara menghitung mean per grup di R<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Dalam analisis deret waktu, rata-rata pergerakan hanyalah nilai rata-rata dari sejumlah periode sebelumnya. Rata-rata pergerakan eksponensial adalah jenis rata-rata bergerak yang memberi bobot lebih pada observasi terkini, yang berarti mampu menangkap tren terkini dengan lebih cepat. Tutorial ini menjelaskan cara menghitung rata-rata pergerakan eksponensial di R. Contoh: rata-rata pergerakan eksponensial di R Misalkan kita memiliki [&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 pergerakan eksponensial di R<\/title>\n<meta name=\"description\" content=\"Tutorial ini menjelaskan cara menghitung rata-rata pergerakan eksponensial di R\" \/>\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\/rata-rata-pergerakan-eksponensial-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 pergerakan eksponensial di R\" \/>\n<meta property=\"og:description\" content=\"Tutorial ini menjelaskan cara menghitung rata-rata pergerakan eksponensial di R\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/id\/rata-rata-pergerakan-eksponensial-di-r\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-27T11:12:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/ewma1.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\/rata-rata-pergerakan-eksponensial-di-r\/\",\"url\":\"https:\/\/statorials.org\/id\/rata-rata-pergerakan-eksponensial-di-r\/\",\"name\":\"Cara menghitung rata-rata pergerakan eksponensial di R\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/id\/#website\"},\"datePublished\":\"2023-07-27T11:12:00+00:00\",\"dateModified\":\"2023-07-27T11:12:00+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/id\/#\/schema\/person\/3d17a1160dd2d052b7c78e502cb9ec81\"},\"description\":\"Tutorial ini menjelaskan cara menghitung rata-rata pergerakan eksponensial di R\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/id\/rata-rata-pergerakan-eksponensial-di-r\/#breadcrumb\"},\"inLanguage\":\"id\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/id\/rata-rata-pergerakan-eksponensial-di-r\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/id\/rata-rata-pergerakan-eksponensial-di-r\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/statorials.org\/id\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Cara menghitung rata-rata pergerakan eksponensial 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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