[R] Convert factor to numeric vector of labels

[Prof Brian Ripley]

See the FAQ Q7.10 (and please study the posting guide)

On Sun, 12 Aug 2007, Falk Lieder wrote:

> Hi,
>
> I have imported a data file to R. Unfortunately R has interpreted some
> numeric variables as factors. Therefore I want to reconvert these to numeric
> vectors whose values are the factor levels' labels. I tried
> as.numeric(<factor>),
> but it returns a vector of factor levels (i.e. 1,2,3,...) instead of labels
> (i.e. 0.71, 1.34, 2.61,
).
> What can I do instead?
>
> Best wishes, Falk
>
> 	[[alternative HTML version deleted]]

> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
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