<\/p>\n
R tabanl\u0131 bir veri \u00e7er\u00e7evesindeki belirli s\u00fctunlar\u0131 se\u00e7mek i\u00e7in a\u015fa\u011f\u0131daki s\u00f6zdizimini kullanabilirsiniz:<\/span><\/p>\n Alternatif olarak dplyr<\/a> paketindeki select()<\/strong> i\u015flevini kullanabilirsiniz:<\/span><\/p>\n Son derece b\u00fcy\u00fck veri k\u00fcmeleri i\u00e7in, select()<\/strong> i\u015flevi temel R i\u015flevlerinden daha h\u0131zl\u0131 olma e\u011filiminde oldu\u011fundan dplyr y\u00f6nteminin kullan\u0131lmas\u0131 \u00f6nerilir.<\/span><\/p>\n A\u015fa\u011f\u0131daki \u00f6rnekler, bu iki y\u00f6ntemin pratikte a\u015fa\u011f\u0131daki veri \u00e7er\u00e7evesiyle nas\u0131l kullan\u0131laca\u011f\u0131n\u0131 g\u00f6stermektedir:<\/span><\/p>\n A\u015fa\u011f\u0131daki kod, R taban\u0131n\u0131 kullanarak belirli s\u00fctunlar\u0131n ada g\u00f6re nas\u0131l se\u00e7ilece\u011fini g\u00f6sterir:<\/span><\/p>\n A\u015fa\u011f\u0131daki kod, R taban\u0131n\u0131 kullanarak belirli s\u00fctunlar\u0131n dizine g\u00f6re nas\u0131l se\u00e7ilece\u011fini g\u00f6sterir:<\/span><\/p>\n A\u015fa\u011f\u0131daki kod, dplyr kullan\u0131larak belirli s\u00fctunlar\u0131n ada g\u00f6re nas\u0131l se\u00e7ilece\u011fini g\u00f6sterir:<\/span><\/p>\n A\u015fa\u011f\u0131daki kod, dplyr kullanarak belirli s\u00fctunlar\u0131n dizine g\u00f6re nas\u0131l se\u00e7ilece\u011fini g\u00f6sterir:<\/span><\/p>\n R’de bir veri \u00e7er\u00e7evesine s\u00fctun nas\u0131l eklenir<\/a> R tabanl\u0131 bir veri \u00e7er\u00e7evesindeki belirli s\u00fctunlar\u0131 se\u00e7mek i\u00e7in a\u015fa\u011f\u0131daki s\u00f6zdizimini kullanabilirsiniz: #select columns by name df[c(‘ col1 ‘, ‘ col2 ‘, ‘ col4 ‘)] #select columns by index df[c(1, 2, 4)] Alternatif olarak dplyr paketindeki select() i\u015flevini kullanabilirsiniz: library (dplyr) #select columns by name df %>% select(col1, col2, col4) #select columns by index df […]<\/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-1843","post","type-post","status-publish","format-standard","hentry","category-rehber"],"yoast_head":"\n #select columns by name\n<\/span>df[c(' col1<\/span> ', ' col2<\/span> ', ' col4<\/span> ')]\n\n#select columns by index\n<\/span>df[c(1, 2, 4)]\n<\/strong><\/pre>\n library<\/span> (dplyr)<\/span>\n\n#select columns by name\n<\/span>df %>%\n select(col1, col2, col4)\n\n#select columns by index\n<\/span>df %>%\n select(1, 2, 4)\n<\/strong><\/pre>\n #create data frame<\/span>\ndf <- data. frame<\/span> (a=c(1, 3, 4, 6, 8, 9),\n b=c(7, 8, 8, 7, 13, 16),\n c=c(11, 13, 13, 18, 19, 22),\n d=c(12, 16, 18, 22, 29, 38))\n\n#view data frame\n<\/span>df\n\n abcd\n1 1 7 11 12\n2 3 8 13 16\n3 4 8 13 18\n4 6 7 18 22\n5 8 13 19 29\n6 9 16 22 38\n<\/strong><\/pre>\n \u00d6rnek 1: Base R’yi (ada g\u00f6re) kullanarak belirli s\u00fctunlar\u0131 se\u00e7in<\/strong><\/span><\/h3>\n
#select columns by name\n<\/span>df[c(' a<\/span> ', ' b<\/span> ', ' d<\/span> ')]\n\n abd\n1 1 7 12\n2 3 8 16\n3 4 8 18\n4 6 7 22\n5 8 13 29\n6 9 16 38\n<\/strong><\/pre>\n \u00d6rnek 2: R taban\u0131n\u0131 kullanarak belirli s\u00fctunlar\u0131 se\u00e7in (dizine g\u00f6re)<\/strong><\/span><\/h3>\n
#select columns by index\n<\/span>df[c(1, 2, 4)]\n\n abd\n1 1 7 12\n2 3 8 16\n3 4 8 18\n4 6 7 22\n5 8 13 29\n6 9 16 38<\/strong><\/pre>\n \u00d6rnek 3: dplyr kullanarak belirli s\u00fctunlar\u0131 se\u00e7in (ada g\u00f6re)<\/strong><\/span><\/h3>\n
library<\/span> (dplyr)<\/span>\n\n#select columns by name\n<\/span>df %>%\n select(a, b, d)\n\n abd\n1 1 7 12\n2 3 8 16\n3 4 8 18\n4 6 7 22\n5 8 13 29\n6 9 16 38<\/strong><\/pre>\n \u00d6rnek 4: Dplyr kullanarak belirli s\u00fctunlar\u0131 se\u00e7in (dizine g\u00f6re)<\/strong><\/span><\/h3>\n
library<\/span> (dplyr)<\/span>\n\n#select columns by index\n<\/span>df %>%\n select(1, 2, 4)\n\n abd\n1 1 7 12\n2 3 8 16\n3 4 8 18\n4 6 7 22\n5 8 13 29\n6 9 16 38<\/strong><\/pre>\n Ek kaynaklar<\/strong><\/span><\/h3>\n
R’de s\u00fctun adlar\u0131 \u00fczerinde yineleme nas\u0131l yap\u0131l\u0131r<\/a>
R’de bir veri \u00e7er\u00e7evesi s\u00fctuna g\u00f6re nas\u0131l s\u0131ralan\u0131r<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"