[R] as.double( factor(something) )??

Prof Brian Ripley ripley at stats.ox.ac.uk
Wed Nov 19 20:23:16 CET 2003

It's in the FAQ, Q7.12.

On Wed, 19 Nov 2003, RenE J.V. Bertin wrote:

> After converting a numeric variable into a factor, is there a way to convert it back to the original values? as.double() doesn't do that correctly, for evident reasons (I guess) and as shown below.

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)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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