On Apr 29, 2010, at 1:42 PM, Henrique Dallazuanna wrote:
On Thu, Apr 29, 2010 at 12:05 PM, David Winsemius <dwinsem...@comcast.net
> wrote:
snipped
##Then bind to your data
z <- cbind(y,x)
Oooh. Not a good practice, at least for the newish useR. cbind and
rbind create matrices and as a consequence coerce all of their
elements to be of the same type. Numeric columns would become
character vectors. Not generally a desired result. This would be
safer:
X is a data.frame, so, the object created is a data.frame.
Thank you for the correction. I probably read at one time that there
was a cbind.data.frame method but I obviously forgot that point. Good
to know.
dat.I$ID2.cf <- as.character( factor(dat.ID$ID2, labels = 1:7) )
--
David.
Thanks again, I expected it to be more complicated!
Cheers,
Ross
David Winsemius, MD
West Hartford, CT
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