<\/p>\n
Zaten mevcut de\u011filse, R’deki bir veri \u00e7er\u00e7evesine bir veya daha fazla s\u00fctun eklemek i\u00e7in a\u015fa\u011f\u0131daki \u00f6zel i\u015flevi kullanabilirsiniz:<\/span><\/p>\n A\u015fa\u011f\u0131daki \u00f6rnek, bu s\u00f6zdiziminin pratikte nas\u0131l kullan\u0131laca\u011f\u0131n\u0131 g\u00f6sterir.<\/span><\/p>\n R’de a\u015fa\u011f\u0131daki veri \u00e7er\u00e7evesine sahip oldu\u011fumuzu varsayal\u0131m:<\/span><\/p>\n Halihaz\u0131rda mevcut de\u011filse, a\u015fa\u011f\u0131daki s\u00fctunlar\u0131 veri \u00e7er\u00e7evesine eklemek istedi\u011fimizi varsayal\u0131m:<\/span><\/p>\n Bunu yapmak i\u00e7in add_cols<\/strong> adl\u0131 \u00f6zel bir i\u015flevi kullanabiliriz:<\/span><\/p>\n Asist<\/strong> ve ribaund<\/strong> s\u00fctunlar\u0131n\u0131n veri \u00e7er\u00e7evesine eklendi\u011fini ancak puan<\/strong> s\u00fctununun zaten var oldu\u011fundan beri eklenmedi\u011fini unutmay\u0131n.<\/span><\/p>\n Ayr\u0131ca R’nin yeni s\u00fctunlardaki her de\u011feri NA de\u011ferleriyle doldurdu\u011funu unutmay\u0131n.<\/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 R’deki di\u011fer s\u00fctunlara dayal\u0131 olarak veri \u00e7er\u00e7evesine s\u00fctun nas\u0131l eklenir<\/a> Zaten mevcut de\u011filse, R’deki bir veri \u00e7er\u00e7evesine bir veya daha fazla s\u00fctun eklemek i\u00e7in a\u015fa\u011f\u0131daki \u00f6zel i\u015flevi kullanabilirsiniz: add_cols <- function (df, cols) { add <- cols[!cols %in% names(df)] if (length(add) != 0) df[add] <- NA return (df) } A\u015fa\u011f\u0131daki \u00f6rnek, bu s\u00f6zdiziminin pratikte nas\u0131l kullan\u0131laca\u011f\u0131n\u0131 g\u00f6sterir. \u00d6rnek: R’de yoksa bir s\u00fctun ekleyin R’de a\u015fa\u011f\u0131daki […]<\/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-3483","post","type-post","status-publish","format-standard","hentry","category-rehber"],"yoast_head":"\n add_cols <- function<\/span> (df, cols) {\n add <- cols[!cols %in%<\/span> names(df)]\n if<\/span> (length(add) != 0) df[add] <- NA\n return<\/span> (df)\n}\n<\/strong><\/pre>\n \u00d6rnek: R’de yoksa bir s\u00fctun ekleyin<\/strong><\/span><\/h2>\n
#create data frame\n<\/span>df <- data. frame<\/span> (team=c('A', 'A', 'A', 'A', 'B', 'B', 'B'),\n position=c('Gu', 'Fo', 'Fo', 'Fo', 'Gu', 'Gu', 'Fo'),\n dots=c(18, 22, 19, 14, 14, 11, 20))\n\n#view data frame\n<\/span>df\n\n team position points\n1 A Gu 18\n2 A Fo 22\n3 A Fo 19\n4 A Fo 14\n5 B Gu 14\n6 B Gu 11\n7 B Fo 20<\/strong><\/span><\/pre>\n\n
#define custom function to add columns to data frame if they do not exist\n<\/span>add_cols <- function<\/span> (df, cols) {\n add <- cols[!cols %in%<\/span> names(df)]\n if<\/span> (length(add) !=0 ) df[add] <- NA\n return<\/span> (df)\n}\n\n#add three columns if they don't already exist\n<\/span>df <- add_cols(df, c(' points<\/span> ', ' assists<\/span> ', ' rebounds<\/span> '))\n\n#view updated data frame\n<\/span>df\n\n team position points assists rebounds\n1 A Gu 18 NA NA\n2 A Fo 22 NA NA\n3 A Fo 19 NA NA\n4 A Fo 14 NA NA\n5 B Gu 14 NA NA\n6 B Gu 11 NA NA\n7 B Fo 20 NA NA\n<\/strong><\/span><\/pre>\n Ek kaynaklar<\/strong><\/span><\/h2>\n
R’deki bir veri \u00e7er\u00e7evesine dizin s\u00fctunu (say\u0131sal kimlik) nas\u0131l eklenir<\/a>
R’deki bir veri \u00e7er\u00e7evesine bo\u015f bir s\u00fctun nas\u0131l eklenir<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"