hi there, I need to subtract each value in the dataframe from the mean of the column and divide by the standard deviation of the column.
> dim(a) [1] 22011 52 data2 <- sapply(seq(from = 2, by = 1, length = 50), function(e){ rbind((a[[e]] - mean(a[,e]))/sd(a[,e])) }) Does this look right???? Any help would be appreciated. Thanks RT -- View this message in context: http://r.789695.n4.nabble.com/mean-and-sd-for-a-Dataframe-tp3298594p3298594.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.