<\/p>\n
R’deki bir veri \u00e7er\u00e7evesindeki kopyalar\u0131 saymak i\u00e7in a\u015fa\u011f\u0131daki y\u00f6ntemleri kullanabilirsiniz:<\/span><\/p>\n Y\u00f6ntem 1: Bir s\u00fctundaki yinelenen de\u011ferleri say\u0131n<\/strong><\/span><\/p>\n Y\u00f6ntem 2: Yinelenen sat\u0131rlar\u0131 sayma<\/strong><\/span><\/p>\n Y\u00f6ntem 3: Her benzersiz sat\u0131r i\u00e7in kopyalar\u0131 say\u0131n<\/strong><\/span><\/p>\n A\u015fa\u011f\u0131daki \u00f6rnekler, R’deki a\u015fa\u011f\u0131daki veri \u00e7er\u00e7evesiyle her y\u00f6ntemin pratikte nas\u0131l kullan\u0131laca\u011f\u0131n\u0131 g\u00f6sterir:<\/span><\/p>\n A\u015fa\u011f\u0131daki kod, puan<\/strong> s\u00fctunundaki yinelenen de\u011ferlerin say\u0131s\u0131n\u0131n nas\u0131l say\u0131laca\u011f\u0131n\u0131 g\u00f6sterir:<\/span><\/p>\n Puan<\/strong> s\u00fctununda 4 adet<\/strong> yinelenen de\u011ferin oldu\u011funu g\u00f6rebiliriz.<\/span><\/p>\n A\u015fa\u011f\u0131daki kod, veri \u00e7er\u00e7evesindeki yinelenen sat\u0131rlar\u0131n say\u0131s\u0131n\u0131n nas\u0131l say\u0131laca\u011f\u0131n\u0131 g\u00f6sterir:<\/span><\/p>\n Veri \u00e7er\u00e7evesinde 2<\/strong> kopya sat\u0131r\u0131n oldu\u011funu g\u00f6rebiliriz.<\/span><\/p>\n Bu 2 yinelenen sat\u0131r\u0131 g\u00f6r\u00fcnt\u00fclemek i\u00e7in a\u015fa\u011f\u0131daki s\u00f6zdizimini kullanabiliriz:<\/span><\/p>\n A\u015fa\u011f\u0131daki kod, veri \u00e7er\u00e7evesindeki her benzersiz sat\u0131r i\u00e7in yinelenenlerin say\u0131s\u0131n\u0131n nas\u0131l say\u0131laca\u011f\u0131n\u0131 g\u00f6sterir:<\/span><\/p>\n S\u00fctun n,<\/b> her benzersiz sat\u0131r i\u00e7in kopya say\u0131s\u0131n\u0131 g\u00f6r\u00fcnt\u00fcler.<\/span><\/p>\n A\u015fa\u011f\u0131daki e\u011fitimlerde R’de di\u011fer ortak g\u00f6revlerin nas\u0131l ger\u00e7ekle\u015ftirilece\u011fi a\u00e7\u0131klanmaktad\u0131r:<\/span><\/p>\n Dplyr kullanarak yinelenen \u00f6\u011feler nas\u0131l bulunur?<\/a> R’deki bir veri \u00e7er\u00e7evesindeki kopyalar\u0131 saymak i\u00e7in a\u015fa\u011f\u0131daki y\u00f6ntemleri kullanabilirsiniz: Y\u00f6ntem 1: Bir s\u00fctundaki yinelenen de\u011ferleri say\u0131n sum(duplicated(df$my_column)) Y\u00f6ntem 2: Yinelenen sat\u0131rlar\u0131 sayma nrow(df[duplicated(df), ]) Y\u00f6ntem 3: Her benzersiz sat\u0131r i\u00e7in kopyalar\u0131 say\u0131n library (dplyr) df %>% group_by_all() %>% count A\u015fa\u011f\u0131daki \u00f6rnekler, R’deki a\u015fa\u011f\u0131daki veri \u00e7er\u00e7evesiyle her y\u00f6ntemin pratikte nas\u0131l kullan\u0131laca\u011f\u0131n\u0131 g\u00f6sterir: #create data frame […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[],"class_list":["post-3975","post","type-post","status-publish","format-standard","hentry","category-rehber"],"yoast_head":"\n sum(duplicated(df$my_column))\n<\/strong><\/pre>\n
nrow(df[duplicated(df), ])<\/strong><\/pre>\n
library<\/span> (dplyr)\n\ndf %>% group_by_all() %>% count<\/strong><\/span><\/pre>\n #create data frame\n<\/span>df = data. frame<\/span> (team=c('A', 'A', 'A', 'A', 'B', 'B', 'B', 'B'),\n position=c('G', 'G', 'G', 'F', 'G', 'G', 'F', 'F'),\n points=c(5, 5, 8, 10, 5, 7, 10, 10))\n\n#view data frame\n<\/span>df\n\n team position points\n1 GA 5\n2 AG 5\n3 AG 8\n4 AF 10\n5 BG 5\n6 BG 7\n7 BF 10\n8 BF 10\n<\/span><\/span><\/strong><\/pre>\n \u00d6rnek 1: Bir s\u00fctundaki yinelenen de\u011ferleri sayma<\/strong><\/span><\/h2>\n
#count number of duplicate values in points column\n<\/span>sum(duplicated(df$points))\n\n[1] 4<\/span><\/span><\/span><\/span><\/strong><\/pre>\n \u00d6rnek 2: Yinelenen sat\u0131rlar\u0131 sayma<\/strong><\/span><\/h2>\n
#count number of duplicate rows<\/span>\nnrow(df[duplicated(df), ])\n\n[1] 2<\/span><\/span><\/strong><\/span><\/pre>\n #display duplicated rows<\/span>\ndf[duplicated(df), ]\n\n team position points\n2 AG 5\n8 BF 10\n<\/span><\/span><\/strong><\/span><\/pre>\n \u00d6rnek 3: Her benzersiz sat\u0131r i\u00e7in kopyalar\u0131 say\u0131n<\/strong><\/span><\/h2>\n
library<\/span> (dplyr)\n\n#count number of duplicate rows in data frame\n<\/span>df %>% group_by_all() %>% count\n\n# A tibble: 6 x 4\n# Groups: team, position, points [6]\n team position points n\n \n1 AF 10 1\n2 AG 5 2\n3 GA 8 1\n4 BF 10 2\n5 BG 5 1\n6 BG 7 1<\/strong><\/span><\/pre>\n Ek kaynaklar<\/strong><\/span><\/h2>\n
R’de yinelenen sat\u0131rlar nas\u0131l kald\u0131r\u0131l\u0131r<\/a>
R’de yinelenen sat\u0131rlar nas\u0131l kald\u0131r\u0131l\u0131r, b\u00f6ylece hi\u00e7bir \u015fey kalmaz<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"