{"id":967,"date":"2023-07-28T04:00:13","date_gmt":"2023-07-28T04:00:13","guid":{"rendered":"https:\/\/statorials.org\/id\/pengambilan-sampel-bertingkat-r\/"},"modified":"2023-07-28T04:00:13","modified_gmt":"2023-07-28T04:00:13","slug":"pengambilan-sampel-bertingkat-r","status":"publish","type":"post","link":"https:\/\/statorials.org\/id\/pengambilan-sampel-bertingkat-r\/","title":{"rendered":"Pengambilan sampel berstrata di r (dengan contoh)"},"content":{"rendered":"

<\/p>\n

\n

Peneliti sering kali mengambil sampel<\/a> dari suatu populasi dan menggunakan data dari sampel tersebut untuk menarik kesimpulan tentang populasi secara keseluruhan.<\/span><\/p>\n

Metode pengambilan sampel yang umum digunakan adalah stratified random sampling<\/strong> , yaitu suatu populasi dibagi menjadi beberapa kelompok dan sejumlah anggota dari setiap kelompok dipilih secara acak untuk dimasukkan ke dalam sampel.<\/span><\/p>\n

Tutorial ini menjelaskan cara melakukan pengambilan sampel acak bertingkat di R.<\/span><\/p>\n

Contoh: Pengambilan Sampel Berstrata di R<\/strong><\/span><\/h2>\n

Sebuah sekolah menengah terdiri dari 400 siswa yang merupakan mahasiswa baru, mahasiswa tahun kedua, junior atau senior. Misalkan kita ingin mengambil sampel bertingkat sebanyak 40 siswa, sehingga 10 siswa dari tiap kelas dimasukkan dalam sampel.<\/span><\/p>\n

Kode berikut menunjukkan cara menghasilkan kerangka data sampel 400 siswa:<\/span><\/p>\n

 #make this example reproducible<\/span>\nset.seed(1)\n\n#create data frame<\/span>\ndf <- data.frame(grade = rep(c('Freshman', 'Sophomore', 'Junior', 'Senior'), each<\/span> =100),\n                 gpa = rnorm(400, mean=85, sd=3))\n\n#view first six rows of data frame\n<\/span>head(df)\n\n     gpa grade\n1 Freshman 83.12064\n2 Freshman 85.55093\n3 Freshman 82.49311\n4 Freshman 89.78584\n5 Freshman 85.98852\n6 Freshman 82.53859<\/strong><\/pre>\n
 Pengambilan sampel bertingkat menggunakan jumlah baris<\/strong><\/span><\/h3>\n
 Kode berikut menunjukkan cara menggunakan fungsi group_by()<\/strong> dan sample_n()<\/strong> dari paket dplyr<\/a> untuk mendapatkan sampel acak bertingkat sebanyak 40 siswa dengan total 10 siswa dari setiap kelas:<\/span><\/p>\n
 library<\/span> (dplyr)\n\n#obtain laminated sample<\/span>\nstrat_sample <- df %>%\n                  group_by<\/span> (grade) %>%\n                  sample_n<\/span> (size=10)\n\n#find frequency of students from each grade\n<\/span>table(strat_sample$grade)\n\n Freshman Junior Senior Sophomore \n       10 10 10 10 \n<\/strong><\/pre>\n
 Pengambilan sampel bertingkat menggunakan pecahan baris<\/strong><\/span><\/h3>\n
 Kode berikut menunjukkan cara menggunakan fungsi group_by()<\/strong> dan sample_frac()<\/strong> dari paket dplyr<\/a> untuk mendapatkan sampel acak bertingkat yang kemudian kita pilih secara acak 15% siswa di setiap kelas:<\/span><\/p>\n
 library<\/span> (dplyr)\n\n#obtain laminated sample<\/span>\nstrat_sample <- df %>%\n                  group_by<\/span> (grade) %>%\n                  sample_frac<\/span> (size=.15)\n\n#find frequency of students from each grade\n<\/span>table(strat_sample$grade)\n\n Freshman Junior Senior Sophomore \n       15 15 15 15<\/strong><\/pre>\n
 Sumber daya tambahan<\/span><\/strong><\/span><\/h3>\n
 Jenis Metode Pengambilan Sampel<\/a>
 Pengambilan sampel cluster di R<\/a>
 Pengambilan sampel sistematis di R<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
Peneliti sering kali mengambil sampel dari suatu populasi dan menggunakan data dari sampel tersebut untuk menarik kesimpulan tentang populasi secara keseluruhan. Metode pengambilan sampel yang umum digunakan adalah stratified random sampling , yaitu suatu populasi dibagi menjadi beberapa kelompok dan sejumlah anggota dari setiap kelompok dipilih secara acak untuk dimasukkan ke dalam sampel. Tutorial ini […]<\/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":"\nPengambilan Sampel Berstrata di R (dengan Contoh)<\/title>\n<meta name=\"description\" content=\"Penjelasan sederhana tentang cara melakukan pengambilan sampel bertingkat 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\/pengambilan-sampel-bertingkat-r\/\" \/>\n<meta property=\"og:locale\" content=\"id_ID\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Pengambilan Sampel Berstrata di R (dengan Contoh)\" \/>\n<meta property=\"og:description\" content=\"Penjelasan sederhana tentang cara melakukan pengambilan sampel bertingkat di R.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/id\/pengambilan-sampel-bertingkat-r\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-28T04:00:13+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=\"2 menit\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/statorials.org\/id\/pengambilan-sampel-bertingkat-r\/\",\"url\":\"https:\/\/statorials.org\/id\/pengambilan-sampel-bertingkat-r\/\",\"name\":\"Pengambilan Sampel Berstrata di R (dengan Contoh)\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/id\/#website\"},\"datePublished\":\"2023-07-28T04:00:13+00:00\",\"dateModified\":\"2023-07-28T04:00:13+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/id\/#\/schema\/person\/3d17a1160dd2d052b7c78e502cb9ec81\"},\"description\":\"Penjelasan sederhana tentang cara melakukan pengambilan sampel bertingkat di R.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/id\/pengambilan-sampel-bertingkat-r\/#breadcrumb\"},\"inLanguage\":\"id\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/id\/pengambilan-sampel-bertingkat-r\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/id\/pengambilan-sampel-bertingkat-r\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/statorials.org\/id\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Pengambilan sampel berstrata 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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