[R] Numeric "Label" of Factor value?
sarah.goslee at gmail.com
Wed Oct 10 20:48:28 CEST 2012
as.numeric() extracts the index of the factor level, which is the way
R handles the likelihood that a factor is not actually numeric. Try:
and see also ?factor particularly the section on the interpretation of a factor.
On Wed, Oct 10, 2012 at 2:39 PM, Brigid Mooney <bkmooney at gmail.com> wrote:
> Sorry, I'm sure I'm not using the appropriate vocab here, which is
> undoubtedly why I can't seem to find a fix to this (hopefully very
> easy) problem.
> Suppose you have a factor
> abc <- factor(c(2,2,3,4,7,7))
> And you want to know what the number in the nth spot in that would be
>  2
> Levels: 2 3 4 7
> shows the correct label of the first element - but if I want to pull
> out the numeric value of that label, I thought...
> but that gives
>  1
> which is the position of the label in the levels vector of the factor.
> R-help at r-project.org mailing list
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
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