<\/p>\n
R’de kar\u015f\u0131la\u015fabilece\u011finiz bir uyar\u0131:<\/span><\/p>\n Bu uyar\u0131, R’de say\u0131sal veya mant\u0131ksal olmayan bir nesnenin ortalamas\u0131 al\u0131nmaya \u00e7al\u0131\u015f\u0131ld\u0131\u011f\u0131nda ortaya \u00e7\u0131kar.<\/span><\/p>\n Bu e\u011fitimde bu uyar\u0131n\u0131n pratikte nas\u0131l ele al\u0131naca\u011f\u0131 a\u00e7\u0131klanmaktad\u0131r.<\/span><\/p>\n R’de a\u015fa\u011f\u0131daki veri \u00e7er\u00e7evesini olu\u015fturdu\u011fumuzu varsayal\u0131m:<\/span><\/p>\n Bir karakter s\u00fctununun ortalamas\u0131n\u0131 almaya \u00e7al\u0131\u015f\u0131rsak veya t\u00fcm veri \u00e7er\u00e7evesinin ortalamas\u0131n\u0131 almaya \u00e7al\u0131\u015f\u0131rsak bir uyar\u0131 al\u0131r\u0131z:<\/span><\/p>\n Mean()<\/strong> i\u015flevi arg\u00fcman olarak yaln\u0131zca say\u0131sal bir vekt\u00f6r al\u0131r, bu nedenle her iki senaryoda da uyar\u0131 al\u0131r\u0131z.<\/span><\/p>\n Bu uyar\u0131y\u0131 ele alman\u0131n yolu Mean()<\/strong> i\u015flevini yaln\u0131zca say\u0131sal vekt\u00f6rlerle kullanmakt\u0131r.<\/span><\/p>\n \u00d6rne\u011fin puan s\u00fctununun ortalamas\u0131n\u0131 say\u0131sal oldu\u011fu i\u00e7in hesaplayabiliriz:<\/span><\/p>\n Veya veri \u00e7er\u00e7evesindeki her s\u00fctunun ortalamas\u0131n\u0131 hesaplamak i\u00e7in sapply()<\/strong> i\u015flevini kullanabiliriz:<\/span><\/p>\n Her bir say\u0131sal s\u00fctunun ortalamas\u0131n\u0131 hesaplayabiliyoruz ancak “tak\u0131m” karakter s\u00fctununun ortalamas\u0131n\u0131 hesaplamaya \u00e7al\u0131\u015ft\u0131\u011f\u0131m\u0131z i\u00e7in yine de bir uyar\u0131 mesaj\u0131 al\u0131yoruz.<\/span><\/p>\n Bu uyar\u0131y\u0131 tamamen \u00f6nlemek i\u00e7in sapply()<\/strong> fonksiyonunu yaln\u0131zca \u00fc\u00e7 say\u0131sal s\u00fctunla kullanabiliriz:<\/span><\/p>\n Her say\u0131sal s\u00fctunun ortalamas\u0131n\u0131n ba\u015far\u0131yla g\u00f6r\u00fcnt\u00fclendi\u011fini ve herhangi bir uyar\u0131 mesaj\u0131 almad\u0131\u011f\u0131m\u0131z\u0131 unutmay\u0131n.<\/span><\/p>\n A\u015fa\u011f\u0131daki e\u011fitimlerde R’deki di\u011fer yayg\u0131n hatalar\u0131n nas\u0131l d\u00fczeltilece\u011fi a\u00e7\u0131klanmaktad\u0131r:<\/span><\/p>\n “Ko\u015fulun uzunlu\u011fu > 1 ve yaln\u0131zca ilk \u00f6\u011fe kullan\u0131lacak” sorununu d\u00fczeltme<\/a> R’de kar\u015f\u0131la\u015fabilece\u011finiz bir uyar\u0131: Warning message: In mean.default(df): argument is not numeric or logical: returning NA Bu uyar\u0131, R’de say\u0131sal veya mant\u0131ksal olmayan bir nesnenin ortalamas\u0131 al\u0131nmaya \u00e7al\u0131\u015f\u0131ld\u0131\u011f\u0131nda ortaya \u00e7\u0131kar. Bu e\u011fitimde bu uyar\u0131n\u0131n pratikte nas\u0131l ele al\u0131naca\u011f\u0131 a\u00e7\u0131klanmaktad\u0131r. Uyar\u0131 nas\u0131l yeniden olu\u015fturulur? R’de a\u015fa\u011f\u0131daki veri \u00e7er\u00e7evesini olu\u015fturdu\u011fumuzu varsayal\u0131m: #create data frame df <- data. […]<\/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-2058","post","type-post","status-publish","format-standard","hentry","category-rehber"],"yoast_head":"\n Warning message:\nIn mean.default(df): argument is not numeric or logical: returning NA\n<\/strong><\/pre>\n
Uyar\u0131 nas\u0131l yeniden olu\u015fturulur?<\/strong><\/h3>\n
#create data frame\ndf <- data. frame<\/span> (team=c('A', 'B', 'C', 'D', 'E'),\n points=c(99, 90, 86, 88, 95),\n assists=c(33, 28, 31, 39, 34),\n rebounds=c(30, 28, 24, 24, 28))<\/span>\n\n#view data frame\ndf\n\n team points assists rebounds\n1 A 99 33 30\n2 B 90 28 28\n3 C 86 31 24\n4 D 88 39 24\n5 E 95 34 28<\/span>\n<\/span><\/strong><\/span><\/pre>\n #attempt to calculate mean of character column\nmean(df$team)\n\nWarning message:\nIn mean.default(df$team): argument is not numeric or logical: returning NA\n<\/span>\n#attempt to calculate mean of entire data frame\nmean(df)\n\nWarning message:\nIn mean.default(df): argument is not numeric or logical: returning NA\n<\/span><\/span><\/strong><\/span><\/pre>\n Uyar\u0131 nas\u0131l ele al\u0131n\u0131r?<\/strong><\/h3>\n
#calculate mean of points column<\/span>\nmean(df$points)\n\n[1] 91.6\n<\/strong><\/span><\/pre>\n #calculate mean of every column in data frame<\/span>\nsapply(df, mean, 2)\n\n team points assists rebounds \n NA 90 33 28 \n\nWarning message:\nIn mean.default(X[[i]], ...):\n argument is not numeric or logical: returning NA<\/strong><\/span><\/pre>\n #calculate mean of each numeric column\n<\/span>sapply(df[c(' points<\/span> ', ' assists<\/span> ', ' rebounds<\/span> ')], mean, 2)\n points assists rebounds \n 90 33 28<\/strong><\/span><\/pre>\n Ek kaynaklar<\/strong><\/span><\/h3>\n
Nas\u0131l d\u00fczeltilir? \u0130kili operat\u00f6r\u00fcn say\u0131sal olmayan ba\u011f\u0131ms\u0131z de\u011fi\u015fkeni<\/a>
Nas\u0131l d\u00fczeltilir? dim(X) pozitif uzunlu\u011fa sahip olmal\u0131d\u0131r<\/a>
Nas\u0131l d\u00fczeltilir? Kullan\u0131lmayan ba\u011f\u0131ms\u0131z de\u011fi\u015fkenlerin se\u00e7ilmesinde hata<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"