<\/p>\n
R’deki purrr<\/strong> paketinin map()<\/strong> i\u015flevi, bir vekt\u00f6r\u00fcn veya listenin her bir \u00f6\u011fesine bir i\u015flev uygulamak ve buna g\u00f6re bir liste d\u00f6nd\u00fcrmek i\u00e7in kullan\u0131labilir.<\/span><\/p>\n Bu i\u015flev a\u015fa\u011f\u0131daki temel s\u00f6zdizimini kullan\u0131r:<\/span><\/p>\n harita(.x, .f)<\/strong><\/span><\/p>\n Alt\u0131n:<\/span><\/p>\n A\u015fa\u011f\u0131daki \u00f6rnekler bu i\u015flevin farkl\u0131 senaryolarda nas\u0131l kullan\u0131laca\u011f\u0131n\u0131 g\u00f6sterir.<\/span><\/p>\n A\u015fa\u011f\u0131daki kod, her biri standart normal da\u011f\u0131l\u0131ma uygun be\u015f de\u011fer i\u00e7eren \u00fc\u00e7 rastgele de\u011fi\u015fken olu\u015fturmak i\u00e7in map()<\/strong> i\u015flevinin nas\u0131l kullan\u0131laca\u011f\u0131n\u0131 g\u00f6sterir:<\/span><\/p>\n Orijinal vekt\u00f6r\u00fcn her bir \u00f6\u011fesi i\u00e7in, harita()<\/strong> i\u015flevi, standart bir normal da\u011f\u0131l\u0131mdan<\/a> be\u015f rastgele de\u011fer \u00fcretmek \u00fczere rnorm() i\u015flevini uygulad\u0131.<\/span><\/p>\n A\u015fa\u011f\u0131daki kod, bir vekt\u00f6rdeki her de\u011ferin karesini hesaplamak i\u00e7in map()<\/strong> i\u015flevinin nas\u0131l kullan\u0131laca\u011f\u0131n\u0131 g\u00f6sterir:<\/span><\/p>\n Orijinal vekt\u00f6r\u00fcn her bir \u00f6\u011fesi i\u00e7in, map()<\/strong> i\u015flevi, her de\u011ferin karesini hesaplayan bir i\u015flev uygulad\u0131.<\/span><\/p>\n A\u015fa\u011f\u0131daki kod, bir listedeki her vekt\u00f6r\u00fcn ortalama de\u011ferini hesaplamak i\u00e7in map()<\/strong> i\u015flevinin nas\u0131l kullan\u0131laca\u011f\u0131n\u0131 g\u00f6sterir:<\/span><\/p>\n Listedeki her vekt\u00f6r i\u00e7in, harita()<\/strong> i\u015flevi ortalama de\u011feri hesaplar.<\/span><\/p>\n Sonu\u00e7tan \u015funu g\u00f6rebiliriz:<\/span><\/p>\n Not<\/strong> : na.rm=TRUE<\/strong> arg\u00fcman\u0131, R’ye ortalamay\u0131 hesaplarken NA de\u011ferlerini g\u00f6z ard\u0131 etmesini s\u00f6yler.<\/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 R’de tapply() i\u015flevi nas\u0131l kullan\u0131l\u0131r?<\/a> R’deki purrr paketinin map() i\u015flevi, bir vekt\u00f6r\u00fcn veya listenin her bir \u00f6\u011fesine bir i\u015flev uygulamak ve buna g\u00f6re bir liste d\u00f6nd\u00fcrmek i\u00e7in kullan\u0131labilir. Bu i\u015flev a\u015fa\u011f\u0131daki temel s\u00f6zdizimini kullan\u0131r: harita(.x, .f) Alt\u0131n: .x : Bir vekt\u00f6r veya liste .f : Bir i\u015flev A\u015fa\u011f\u0131daki \u00f6rnekler bu i\u015flevin farkl\u0131 senaryolarda nas\u0131l kullan\u0131laca\u011f\u0131n\u0131 g\u00f6sterir. \u00d6rnek 1: Rastgele de\u011fi\u015fkenler […]<\/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-3506","post","type-post","status-publish","format-standard","hentry","category-rehber"],"yoast_head":"\n\n
\u00d6rnek 1: Rastgele de\u011fi\u015fkenler olu\u015fturmak i\u00e7in map() i\u015flevini kullan\u0131n<\/strong><\/span><\/h2>\n
library<\/span> (purrr)\n\n#definevector\n<\/span>data <- 1:3\n\n#apply rnorm() function to each value in vector<\/span>\ndata %>%\n map( function<\/span> (x) rnorm(5, x))\n\n[[1]]\n[1] 0.0556774 1.8053082 2.6489861 2.2640136 1.1062672\n\n[[2]]\n[1] 1.450175 1.123048 3.413677 3.055304 2.713801\n\n[[3]]\n[1] 2.936732 2.157129 3.693738 2.994391 2.567040\n<\/span><\/span><\/strong><\/pre>\n \u00d6rnek 2: Her de\u011feri bir vekt\u00f6re d\u00f6n\u00fc\u015ft\u00fcrmek i\u00e7in map() i\u015flevini kullan\u0131n<\/strong><\/span><\/h2>\n
library<\/span> (purrr)\n\n#definevector\n<\/span>data <- c(2, 4, 10, 15, 20)\n\n#calculate square of each value in the vector<\/span>\ndata %>%\n map( function<\/span> (x) x^2)\n\n[[1]]\n[1] 4\n\n[[2]]\n[1] 16\n\n[[3]]\n[1] 100\n\n[[4]]\n[1] 225\n\n[[5]]\n[1] 400<\/span><\/span><\/strong><\/pre>\n \u00d6rnek 3: Listedeki her vekt\u00f6r\u00fcn ortalamas\u0131n\u0131 hesaplamak i\u00e7in map() i\u015flevini kullan\u0131n<\/strong><\/span><\/h2>\n
library<\/span> (purrr)\n\n#define list of vectors<\/span>\ndata <- list(c(1, 2, 3),\n c(4, 5, 6),\n c(7, 8, NA))\n\n#calculate mean value of each vector in list\n<\/span>data %>%\n map(mean, na. rm<\/span> = TRUE<\/span> )\n\n[[1]]\n[1] 2\n\n[[2]]\n[1] 5\n\n[[3]]\n[1] 7.5<\/span><\/span><\/strong><\/pre>\n\n
Ek kaynaklar<\/strong><\/span><\/h2>\n
R’de dim() i\u015flevi nas\u0131l kullan\u0131l\u0131r?<\/a>
R’de table() i\u015flevi nas\u0131l kullan\u0131l\u0131r?<\/a>
R’de i\u015faret () i\u015flevi nas\u0131l kullan\u0131l\u0131r?<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"