{"id":3481,"date":"2023-07-17T06:28:29","date_gmt":"2023-07-17T06:28:29","guid":{"rendered":"https:\/\/statorials.org\/id\/rata-rata-bergerak-di-r\/"},"modified":"2023-07-17T06:28:29","modified_gmt":"2023-07-17T06:28:29","slug":"rata-rata-bergerak-di-r","status":"publish","type":"post","link":"https:\/\/statorials.org\/id\/rata-rata-bergerak-di-r\/","title":{"rendered":"Cara menghitung rata-rata pergerakan di r (dengan contoh)"},"content":{"rendered":"

<\/p>\n

\n

Dalam analisis deret waktu, rata-rata bergerak<\/strong> mewakili nilai rata-rata sejumlah periode sebelumnya.<\/span><\/p>\n

Cara termudah untuk menghitung rata-rata bergulir di R adalah dengan menggunakan fungsi rollmean()<\/strong> dari paket zoo<\/strong> :<\/span><\/p>\n

 library<\/span> (dplyr)<\/span>\nlibrary<\/span> (zoo)<\/span>\n\n#calculate 3-day rolling average<\/span>\ndf %>%\n  mutate(rolling_avg = rollmean(values, k= 3<\/span> , fill=NA, align=' right<\/span> '))<\/strong><\/pre>\n
 Contoh khusus ini menghitung rata-rata pergerakan 3<\/strong> hari untuk kolom berlabel Nilai<\/strong> .<\/span><\/p>\n
 Contoh berikut menunjukkan cara menggunakan fungsi ini dalam praktiknya.<\/span><\/p>\n
 Contoh: hitung moving average di R<\/strong><\/span><\/h2>\n
 Misalkan kita memiliki kerangka data berikut di R yang menunjukkan penjualan suatu produk selama 10 hari berturut-turut:<\/span><\/p>\n
 #create data frame<\/span>\ndf <- data. frame<\/span> (day=c(1, 2, 3, 4, 5, 6, 7, 8, 9, 10),\n                 sales=c(25, 20, 14, 16, 27, 20, 12, 15, 14, 19))\n\n#view data frame\n<\/span>df\n\n   day 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<\/strong><\/pre>\n
 Kita dapat menggunakan sintaks berikut untuk membuat kolom baru bernama avg_sales3<\/strong> yang menampilkan nilai penjualan rata-rata bergerak selama 3 hari sebelumnya di setiap baris bingkai data:<\/span><\/span><\/p>\n
 library<\/span> (dplyr)\nlibrary<\/span> (zoo)\n\n#calculate 3-day rolling average of sales<\/span>\ndf %>%\n  mutate(avg_sales3 = rollmean(sales, k= 3<\/span> , fill=NA, align=' right<\/span> '))\n\n   day sales avg_sales3\n1 1 25 NA\n2 2 20 NA\n3 3 14 19.66667\n4 4 16 16.66667\n5 5 27 19.00000\n6 6 20 21.00000\n7 7 12 19.66667\n8 8 15 15.66667\n9 9 14 13.66667\n10 10 19 16.00000\n<\/strong><\/span><\/pre>\n
 Catatan<\/strong> : Nilai k<\/strong> pada fungsi rollmean()<\/strong> mengontrol jumlah periode sebelumnya yang digunakan untuk menghitung rata-rata pergerakan.<\/span><\/p>\n
 Kolom avg_sales3<\/strong> menampilkan nilai penjualan rata-rata bergerak selama 3 periode sebelumnya.<\/span><\/p>\n
 Misalnya nilai pertama 19.66667<\/strong> dihitung sebagai berikut:<\/span><\/p>\n
 Rata-rata pergerakan 3 hari = (25 + 20 + 14) \/ 3 = 19,66667<\/strong><\/span><\/p>\n
 Anda juga dapat menghitung beberapa rata-rata pergerakan sekaligus dengan menggunakan beberapa fungsi rollmean()<\/strong> dalam fungsi mutate()<\/strong> .<\/span><\/p>\n
 Misalnya, kode berikut menunjukkan cara menghitung rata-rata pergerakan penjualan 3 hari dan 4 hari:<\/span><\/p>\n
 library<\/span> (dplyr)\nlibrary<\/span> (zoo)\n\n#calculate 3-day and 4-day rolling average of sales<\/span>\ndf %>%\n  mutate(avg_sales3 = rollmean(sales, k= 3<\/span> , fill=NA, align=' right<\/span> '),\n         avg_sales4 = rollmean(sales, k= 4<\/span> , fill=NA, align=' right<\/span> '))\n\n   day sales avg_sales3 avg_sales4\n1 1 25 NA NA\n2 2 20 NA NA\n3 3 14 19.66667 NA\n4 4 16 16.66667 18.75\n5 5 27 19.00000 19.25\n6 6 20 21.00000 19.25\n7 7 12 19.66667 18.75\n8 8 15 15.66667 18.50\n9 9 14 13.66667 15.25\n10 10 19 16.00000 15.00\n<\/strong><\/span><\/pre>\n
 Kolom avg_sales3<\/strong> dan avg_sales4<\/strong> masing-masing menampilkan rata-rata pergerakan penjualan 3 hari dan 4 hari.<\/span><\/p>\n
 Sumber daya tambahan<\/strong><\/span><\/h2>\n
 Tutorial berikut menjelaskan cara melakukan tugas umum lainnya di R:<\/span><\/p>\n
 Cara memplot banyak kolom di R<\/a>
 Cara menghitung rata-rata kolom di R<\/a>
 Cara menghitung mean per grup di R<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
Dalam analisis deret waktu, rata-rata bergerak mewakili nilai rata-rata sejumlah periode sebelumnya. Cara termudah untuk menghitung rata-rata bergulir di R adalah dengan menggunakan fungsi rollmean() dari paket zoo : library (dplyr) library (zoo) #calculate 3-day rolling average df %>% mutate(rolling_avg = rollmean(values, k= 3 , fill=NA, align=’ right ‘)) Contoh khusus ini menghitung rata-rata pergerakan […]<\/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":"\nCara Menghitung Rata-Rata Pergerakan di R (dengan Contoh) - Statologi<\/title>\n<meta name=\"description\" content=\"Tutorial ini menjelaskan cara menghitung rata-rata bergerak di R, dengan sebuah 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\/rata-rata-bergerak-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 di R (dengan Contoh) - Statologi\" \/>\n<meta property=\"og:description\" content=\"Tutorial ini menjelaskan cara menghitung rata-rata bergerak di R, dengan sebuah contoh.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/id\/rata-rata-bergerak-di-r\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-17T06:28:29+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\/rata-rata-bergerak-di-r\/\",\"url\":\"https:\/\/statorials.org\/id\/rata-rata-bergerak-di-r\/\",\"name\":\"Cara Menghitung Rata-Rata Pergerakan di R (dengan Contoh) - Statologi\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/id\/#website\"},\"datePublished\":\"2023-07-17T06:28:29+00:00\",\"dateModified\":\"2023-07-17T06:28:29+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/id\/#\/schema\/person\/3d17a1160dd2d052b7c78e502cb9ec81\"},\"description\":\"Tutorial ini menjelaskan cara menghitung rata-rata bergerak di R, dengan sebuah contoh.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/id\/rata-rata-bergerak-di-r\/#breadcrumb\"},\"inLanguage\":\"id\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/id\/rata-rata-bergerak-di-r\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/id\/rata-rata-bergerak-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 di r (dengan contoh)\"}]},{\"@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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