Hello, I have what I suspect might be an easy problem but I am new to R and stumped. I have a data set that looks something like this
b<-c(2,3,4,5,6,7,8,9) x<-c(2,3,4,5,6,7,8,9) y<-c(9,8,7,6,5,4,3,2) z<-c(9,8,7,6,1,2,3,4) data<-cbind(x,y,z) row.names(data)<-c('a','b','c','d','e','f','g','h') which gives: x y z a 2 9 9 b 3 8 8 c 4 7 7 d 5 6 6 e 6 5 1 f 7 4 2 g 8 3 3 h 9 2 4 I would like to randomize data within columns. The closest I have been able to come permutes data within the columns but keeps rows together along with row names(example below). For some context, eventually I would like use this to generate many data sets and perform calculations on these random data sets (I think I know how to do this but we'll see). So ideally I would like row names to remain the same (in order a through h) and column data to randomize within columns but independently of the other columns. Just shuffle the data deck I guess > data[permute(1:length(data[,1])),] x y z b 3 8 8 c 4 7 7 h 9 2 4 e 6 5 1 f 7 4 2 a 2 9 9 g 8 3 3 d 5 6 6 Thanks in advance for the help and also for the good advice earlier this week. Cheers [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list 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.