levels() counter-intuitif? (PR#1693)
David Brahm
brahm@alum.mit.edu
Wed, 19 Jun 2002 13:50:07 -0400
rjvbertin@hotmail.com writes:
> Suppose I have a factor size with levels "small", "medium" and "large".
> Then, when I subset this factor:
> >ss<-size[size!="medium"]
> to get at the extremes,
> >levels(ss)
> ....
> Levels: large medium small
Try:
R> ss <- size[size != "medium", drop=T]
R> levels(ss)
[1] "large" "small"
By the way, this type of question probably belongs in R-help, not R-devel, and
you will likely get grief for submitting it as a "bug".
--
-- David Brahm (brahm@alum.mit.edu)
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