<\/p>\n
\u00c7o\u011funlukla belirli ko\u015fullara dayal\u0131 olarak R’deki bir veri \u00e7er\u00e7evesinde yeni bir de\u011fi\u015fken olu\u015fturmak isteyebilirsiniz. Neyse ki, dplyr<\/a> paketindeki mutate()<\/strong> ve case_when()<\/strong> i\u015flevlerini kullanarak bunu yapmak kolayd\u0131r.<\/span><\/p>\n Bu e\u011fitimde, bu i\u015flevleri a\u015fa\u011f\u0131daki veri \u00e7er\u00e7evesiyle kullanman\u0131n birka\u00e7 \u00f6rne\u011fi g\u00f6sterilmektedir:<\/span><\/p>\n A\u015fa\u011f\u0131daki kod, puan s\u00fctunundaki de\u011fere dayal\u0131 olarak “puanlay\u0131c\u0131” ad\u0131 verilen yeni bir de\u011fi\u015fkenin nas\u0131l olu\u015fturulaca\u011f\u0131n\u0131 g\u00f6sterir:<\/span><\/p>\n A\u015fa\u011f\u0131daki kod, oynat\u0131c\u0131 ve konum s\u00fctunundaki de\u011fere g\u00f6re “type” adl\u0131 yeni bir de\u011fi\u015fkenin nas\u0131l olu\u015fturulaca\u011f\u0131n\u0131 g\u00f6sterir:<\/span><\/p>\n A\u015fa\u011f\u0131daki kod, puan ve ribaund s\u00fctunlar\u0131n\u0131n de\u011ferine dayal\u0131 olarak “valueAdded” adl\u0131 yeni bir de\u011fi\u015fkenin nas\u0131l olu\u015fturulaca\u011f\u0131n\u0131 g\u00f6sterir:<\/span><\/p>\n R’deki s\u00fctunlar nas\u0131l yeniden adland\u0131r\u0131l\u0131r \u00c7o\u011funlukla belirli ko\u015fullara dayal\u0131 olarak R’deki bir veri \u00e7er\u00e7evesinde yeni bir de\u011fi\u015fken olu\u015fturmak isteyebilirsiniz. Neyse ki, dplyr paketindeki mutate() ve case_when() i\u015flevlerini kullanarak bunu yapmak kolayd\u0131r. Bu e\u011fitimde, bu i\u015flevleri a\u015fa\u011f\u0131daki veri \u00e7er\u00e7evesiyle kullanman\u0131n birka\u00e7 \u00f6rne\u011fi g\u00f6sterilmektedir: #create data frame df <- data.frame(player = c(‘a’, ‘b’, ‘c’, ‘d’, ‘e’), position = c(‘G’, ‘F’, ‘F’, ‘G’, […]<\/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-960","post","type-post","status-publish","format-standard","hentry","category-rehber"],"yoast_head":"\n #create data frame<\/span>\ndf <- data.frame(player = c('a', 'b', 'c', 'd', 'e'),\n position = c('G', 'F', 'F', 'G', 'G'),\n points = c(12, 15, 19, 22, 32),\n rebounds = c(5, 7, 7, 12, 11))\n\n#view data frame\n<\/span>df\n\n player position points rebounds\n1 to G 12 5\n2 b F 15 7\n3 c F 19 7\n4 d G 22 12\n5th G 32 11\n<\/strong><\/pre>\n \u00d6rnek 1: Mevcut bir de\u011fi\u015fkeni temel alarak yeni bir de\u011fi\u015fken olu\u015fturun<\/strong><\/h3>\n
library(dplyr)\n\n#define new variable 'scorer' using mutate() and case_when()\n<\/span>df %>%\n mutate<\/span> (scorer = case_when<\/span> (points < 15 ~ ' low<\/span> ',\n points < 25 ~ ' med<\/span> ',\n points < 35 ~ ' high<\/span> '))\n\n player position points rebounds scorer\n1 a G 12 5 low\n2 b F 15 7 med\n3 c F 19 7 med\n4 d G 22 12 med\n5th G 32 11 high<\/strong><\/pre>\n \u00d6rnek 2: Mevcut birka\u00e7 de\u011fi\u015fkene dayal\u0131 olarak yeni bir de\u011fi\u015fken olu\u015fturun<\/strong><\/h3>\n
library(dplyr)\n\n#define new variable 'type' using mutate() and case_when()\n<\/span>df %>%\n mutate<\/span> (type = case_when<\/span> (player == 'a' | player == 'b' ~ ' starter<\/span> ',\n player == 'c' | player == 'd' ~ ' backup<\/span> ',\n position == 'G' ~ ' reserve<\/span> '))\n\n player position points rebounds type\n1 a G 12 5 starter\n2 b F 15 7 starter\n3 c F 19 7 backup\n4 d G 22 12 backup\n5th G 32 11 reserve<\/strong><\/pre>\n library(dplyr)\n\n#define new variable 'valueAdded' using mutate() and case_when()\n<\/span>df %>%\n mutate<\/span> (valueAdded = case_when<\/span> (points <= 15 & rebounds <=5 ~ 2,\n points <=15 & rebounds > 5 ~ 4,\n points < 25 & rebounds < 8 ~ 6,\n points < 25 & rebounds > 8 ~ 7,\n points >=25 ~ 9))\n\n player position points rebounds valueAdded\n1 to G 12 5 2\n2 b F 15 7 4\n3c F 19 7 6\n4 d G 22 12 7\n5th G 32 11 9<\/strong><\/pre>\n Ek kaynaklar<\/strong><\/span><\/h3>\n
R’deki s\u00fctunlar nas\u0131l silinir<\/a>
R’deki sat\u0131rlar nas\u0131l filtrelenir<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"