On Thu, May 31, 2012 at 8:52 AM, J Toll <jct...@gmail.com> wrote:
> for (i in seq(ncol(df), 1))
> if (length(unique(df[, i])) == 1) {
> df[, i] <- NULL
> }
Here's a similar method employing a more functional approach:
df[, apply(df, 2, function(x) length(unique(x)) > 1)]
James
______________________________________________
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.
