<\/p>\n
Bir gruptaki g\u00f6zlemlerin say\u0131s\u0131n\u0131 saymak i\u00e7in R’deki dplyr<\/a> paketindeki n()<\/strong> i\u015flevini kullanabilirsiniz.<\/span><\/p>\n Bu \u00f6zelli\u011fi pratikte kullanman\u0131n \u00fc\u00e7 yayg\u0131n yolu \u015funlard\u0131r:<\/span><\/p>\n Y\u00f6ntem 1: G\u00f6zlemleri gruba g\u00f6re saymak i\u00e7in n() \u00f6\u011fesini kullan\u0131n<\/strong><\/span><\/p>\n Y\u00f6ntem 2: G\u00f6zlemleri gruba g\u00f6re g\u00f6r\u00fcnt\u00fcleyen bir s\u00fctun eklemek i\u00e7in n() \u00f6\u011fesini kullan\u0131n<\/strong><\/span><\/p>\n Y\u00f6ntem 3: G\u00f6zlemleri gruba g\u00f6re filtrelemek i\u00e7in n() \u00f6\u011fesini kullan\u0131n<\/strong><\/span><\/p>\n A\u015fa\u011f\u0131daki \u00f6rnekler, R’de \u00e7e\u015fitli basketbol oyuncular\u0131 hakk\u0131nda bilgi i\u00e7eren 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, tak\u0131m<\/strong> ba\u015f\u0131na g\u00f6zlem say\u0131s\u0131n\u0131 saymak i\u00e7in n()<\/strong> i\u015flevinin summarise()<\/strong> i\u015fleviyle birlikte nas\u0131l kullan\u0131laca\u011f\u0131n\u0131 g\u00f6sterir:<\/span><\/p>\n Sonu\u00e7tan \u015funlar\u0131 g\u00f6rebiliriz:<\/span><\/p>\n A\u015fa\u011f\u0131daki kod, tarih \u00e7er\u00e7evesine ekip<\/strong> ba\u015f\u0131na g\u00f6zlem say\u0131s\u0131n\u0131 i\u00e7eren bir s\u00fctun eklemek i\u00e7in n()<\/strong> i\u015flevinin mutate()<\/strong> i\u015fleviyle nas\u0131l kullan\u0131laca\u011f\u0131n\u0131 g\u00f6sterir:<\/span><\/p>\n Say\u0131m<\/strong> ad\u0131 verilen yeni s\u00fctun, veri \u00e7er\u00e7evesindeki her sat\u0131r i\u00e7in tak\u0131m say\u0131s\u0131n\u0131 i\u00e7erir.<\/span><\/span><\/p>\n A\u015fa\u011f\u0131daki kod, veri \u00e7er\u00e7evesini yaln\u0131zca ekibin birden fazla kez g\u00f6r\u00fcnd\u00fc\u011f\u00fc sat\u0131rlar\u0131 g\u00f6sterecek \u015fekilde filtrelemek i\u00e7in n()<\/strong> i\u015flevinin filter()<\/strong> i\u015fleviyle birlikte nas\u0131l kullan\u0131laca\u011f\u0131n\u0131 g\u00f6sterir:<\/span><\/p>\n Ortaya \u00e7\u0131kan veri \u00e7er\u00e7evesinin yaln\u0131zca tak\u0131m\u0131n “A” veya “B” oldu\u011fu sat\u0131rlar\u0131 i\u00e7erdi\u011fini unutmay\u0131n; \u00e7\u00fcnk\u00fc bunlar, say\u0131s\u0131 birden b\u00fcy\u00fck olan tek tak\u0131mlard\u0131r.<\/span><\/span><\/p>\n A\u015fa\u011f\u0131daki e\u011fitimlerde R’deki di\u011fer yayg\u0131n i\u015flevlerin nas\u0131l kullan\u0131laca\u011f\u0131 a\u00e7\u0131klanmaktad\u0131r:<\/span><\/p>\n Dplyr’de cross () i\u015flevi nas\u0131l kullan\u0131l\u0131r?<\/a> Bir gruptaki g\u00f6zlemlerin say\u0131s\u0131n\u0131 saymak i\u00e7in R’deki dplyr paketindeki n() i\u015flevini kullanabilirsiniz. Bu \u00f6zelli\u011fi pratikte kullanman\u0131n \u00fc\u00e7 yayg\u0131n yolu \u015funlard\u0131r: Y\u00f6ntem 1: G\u00f6zlemleri gruba g\u00f6re saymak i\u00e7in n() \u00f6\u011fesini kullan\u0131n df %>% group_by(group_variable) %>% summarize(count = n()) Y\u00f6ntem 2: G\u00f6zlemleri gruba g\u00f6re g\u00f6r\u00fcnt\u00fcleyen bir s\u00fctun eklemek i\u00e7in n() \u00f6\u011fesini kullan\u0131n df %>% group_by(group_variable) %>% mutate(count […]<\/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-3995","post","type-post","status-publish","format-standard","hentry","category-rehber"],"yoast_head":"\n df %>%\n group_by(group_variable) %>%\n summarize(count = n())\n<\/strong><\/span><\/pre>\n df %>%\n group_by(group_variable) %>%\n mutate(count = n())<\/strong><\/span><\/pre>\n df %>%\n group_by(group_variable) %>%\n filter(n() > 15<\/span> )<\/strong><\/span><\/pre>\n #create data frame\n<\/span>df <- data. frame<\/span> (team=c('A', 'A', 'A', 'B', 'B', 'C'),\n points=c(22, 25, 25, 20, 29, 13),\n assists=c(10, 12, 9, 4, 11, 10),\n rebounds=c(9, 8, 5, 10, 14, 12))\n\n#view data frame\n<\/span>df\n\n team points assists rebounds\n1 A 22 10 9\n2 A 25 12 8\n3 to 25 9 5\n4 B 20 4 10\n5 B 29 11 14\n6 C 13 10 12\n<\/strong><\/pre>\n \u00d6rnek 1: G\u00f6zlemleri gruba g\u00f6re saymak i\u00e7in n() i\u015flevini kullan\u0131n<\/strong><\/span><\/h2>\n
library<\/span> (dplyr)\n\n#count number of observations by team<\/span>\ndf %>%\n group_by(team) %>%\n summarize(count = n())\n\n# A tibble: 3 x 2\n team count\n \n1 to 3\n2 B 2\n3 C 1<\/strong><\/pre>\n\n
\u00d6rnek 2: G\u00f6zlemleri gruba g\u00f6re g\u00f6r\u00fcnt\u00fcleyen bir s\u00fctun eklemek i\u00e7in n() i\u015flevini kullan\u0131n<\/strong><\/span><\/h2>\n
library<\/span> (dplyr)\n\n#add new column that shows number of observations by team<\/span>\ndf %>%\n group_by(team) %>%\n mutate(count = n())\n\n# A tibble: 6 x 5\n# Groups: team [3]\n team points assists rebounds count\n \n1 to 22 10 9 3\n2 to 25 12 8 3\n3 to 25 9 5 3\n4 B 20 4 10 2\n5 B 29 11 14 2\n6 C 13 10 12 1<\/strong><\/pre>\n \u00d6rnek 3: G\u00f6zlemleri gruba g\u00f6re filtrelemek i\u00e7in n() i\u015flevini kullan\u0131n<\/strong><\/span><\/h2>\n
library<\/span> (dplyr)\n\n#filter rows where team count is greater than 1<\/span>\ndf %>%\n group_by(team) %>%\n filter(n() > 1<\/span> )\n\n# A tibble: 5 x 4\n# Groups: team [2]\n team points assists rebounds\n \n1 A 22 10 9\n2 A 25 12 8\n3 to 25 9 5\n4 B 20 4 10\n5 B 29 11 14<\/strong><\/pre>\n Ek kaynaklar<\/strong><\/span><\/h2>\n
Dplyr’de relocate () i\u015flevi nas\u0131l kullan\u0131l\u0131r?<\/a>
Dplyr’de dilim () i\u015flevi nas\u0131l kullan\u0131l\u0131r?<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"