Hello everybody, I have a problem with R.
I uploaded a questionnaire saved as csv into R and I tried to test independence between two variables. data <- read.csv("C:/Users/Me/Desktop/data.csv")> View(data)> df = read.csv("C:/Users/Me/Desktop/data.csv")> ls() [1] "df" "data"> attributes(data$gender) $levels [1] " F" " M" "F" "M" $class [1] "factor" I changed my variable "gender" into a factor using: data$gender=factor(data$gender, levels=c(1:2), labels= c( "F", "M"), exclude= NA, nmax= NA). Then I wrote data$gender and the only thing i got was: [1] <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA> [21] <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA> [41] <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA> [61] <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA> Levels: F M Does anybody know why? -My csv doc in the column gender is filled out properly. (M=Male, F= Female) -My imported dataset in R is complete (all values) ! I have done this with a different excel document and it worked out without any problems. I am really clueless. I cant go further and compare the variables and do t-tests without this working. Could someone please help me out? Thank you. [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.