On Nov 21, 2012, at 9:32 AM, Brian Feeny <bfe...@me.com> wrote: > > I have a dataframe in which I have values 0-255, I wish to transpose them > such that: > > if value > 127.5 value = 1 > if value < 127.5 value = -1 > > I did something similar using the "binarize" function of the biclust package, > this transforms my dataframe to 0 and 1 values, but I wish > to use -1 and 1 and looking for a way in R to do this. > > Brian
See ?ifelse ifelse(value > 127.5, 1, -1) You might want to think about what happens when value == 127.5 ... Regards, Marc Schwartz ______________________________________________ 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.
