{"id":1566,"date":"2023-07-25T20:51:35","date_gmt":"2023-07-25T20:51:35","guid":{"rendered":"https:\/\/statorials.org\/id\/varians-kelompok-r\/"},"modified":"2023-07-25T20:51:35","modified_gmt":"2023-07-25T20:51:35","slug":"varians-kelompok-r","status":"publish","type":"post","link":"https:\/\/statorials.org\/id\/varians-kelompok-r\/","title":{"rendered":"Cara menghitung varians gabungan di r"},"content":{"rendered":"

<\/p>\n

\n

Dalam statistik, varian klaster<\/a> mengacu pada rata-rata dari dua atau lebih varian klaster.<\/span><\/p>\n

Kita menggunakan kata “dikumpulkan” untuk menunjukkan bahwa kita “menggabungkan” dua atau lebih varian kelompok untuk mendapatkan satu angka untuk varian umum antar kelompok.<\/span><\/p>\n

Dalam praktiknya, varians yang dikumpulkan paling sering digunakan dalam uji-t dua sampel<\/a> , yang digunakan untuk menentukan apakah rata-rata dua populasi sama atau tidak.<\/span><\/p>\n

Varians yang dikumpulkan antara dua sampel umumnya dilambangkan sp<\/sub> 2<\/sup> dan dihitung sebagai berikut:<\/span><\/p>\n

s p<\/sub> 2<\/sup> = ( (n 1<\/sub> -1)s 1<\/sub> 2<\/sup> + (n 2<\/sub> -1)s 2<\/sub> 2<\/sup> ) \/ (n 1<\/sub> +n 2<\/sub> -2)<\/span><\/p>\n

Sayangnya, tidak ada fungsi bawaan untuk menghitung varians gabungan antara dua grup di R, namun kita dapat menghitungnya dengan cukup mudah.<\/span><\/p>\n

Misalnya, kita ingin menghitung varians gabungan antara dua kelompok berikut:<\/span> <\/p>\n

\"\"<\/p>\n

Kode berikut menunjukkan cara menghitung varians gabungan antara grup-grup ini di R:<\/span><\/p>\n

 #define groups of data<\/span>\nx1 <- c(6, 7, 7, 8, 10, 11, 13, 14, 14, 16, 18, 19, 19, 19, 20)\nx2 <- c(5, 7, 7, 8, 10, 13, 14, 15, 19, 20, 20, 23, 25, 28, 32)\n\n#calculate sample size of each group\n<\/span>n1 <- length(x1)\nn2 <- length(x2)\n\n#calculate sample variance of each group\n<\/span>var1 <- var(x1)\nvar2 <- var(x2)\n\n#calculate pooled variance between the two groups\n<\/span>pooled <- ((n1-1)*var1 + (n2-1)*var2) \/ (n1+n2-2)\n\n#display pooled variance\n<\/span>pooled\n\n[1] 46.97143\n<\/strong><\/pre>\n
 Varians yang dikumpulkan antara kedua kelompok ini adalah 46.97143<\/strong> .<\/span><\/p>\n
 Sumber daya tambahan<\/strong><\/span><\/h3>\n
 Apa itu varians berkerumun? (Definisi dan contoh)<\/a>
 Kalkulator Kesenjangan yang Dibundel<\/a>
 Cara Menghitung Pooled Variance di Excel<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
Dalam statistik, varian klaster mengacu pada rata-rata dari dua atau lebih varian klaster. Kita menggunakan kata “dikumpulkan” untuk menunjukkan bahwa kita “menggabungkan” dua atau lebih varian kelompok untuk mendapatkan satu angka untuk varian umum antar kelompok. Dalam praktiknya, varians yang dikumpulkan paling sering digunakan dalam uji-t dua sampel , yang digunakan untuk menentukan apakah rata-rata […]<\/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 varians berkerumun di R - Statorials<\/title>\n<meta name=\"description\" content=\"Tutorial ini menjelaskan cara menghitung varians gabungan antara dua grup 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\/varians-kelompok-r\/\" \/>\n<meta property=\"og:locale\" content=\"id_ID\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cara menghitung varians berkerumun di R - Statorials\" \/>\n<meta property=\"og:description\" content=\"Tutorial ini menjelaskan cara menghitung varians gabungan antara dua grup di R, dengan sebuah contoh.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/id\/varians-kelompok-r\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-25T20:51:35+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/pooledvar1.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\/varians-kelompok-r\/\",\"url\":\"https:\/\/statorials.org\/id\/varians-kelompok-r\/\",\"name\":\"Cara menghitung varians berkerumun di R - Statorials\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/id\/#website\"},\"datePublished\":\"2023-07-25T20:51:35+00:00\",\"dateModified\":\"2023-07-25T20:51:35+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/id\/#\/schema\/person\/3d17a1160dd2d052b7c78e502cb9ec81\"},\"description\":\"Tutorial ini menjelaskan cara menghitung varians gabungan antara dua grup di R, dengan sebuah contoh.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/id\/varians-kelompok-r\/#breadcrumb\"},\"inLanguage\":\"id\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/id\/varians-kelompok-r\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/id\/varians-kelompok-r\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/statorials.org\/id\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Cara menghitung varians gabungan 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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