[R] pooling categories in a table

[Peter Dalgaard BSA]

Robin Hankin <r.hankin at auckland.ac.nz> writes:

> Peter Dalgaard writes:
> 
> > 
> >  data(UCBAdmissions)
> >  DF <- as.data.frame(UCBAdmissions)
> >  DF$Dept <- factor(c(1,2,2,3,4,5)[DF$Dept],
> >      labels=c("A","B+C","D","E","F"))
> >  xtabs(Freq~.,DF)
> > 
> 
> 
> This is simply brilliant.  I found it very very instructive; any
> chance of adding it to the examples section of xtabs()' help file?

Not at this stage with 1.5.0 in feature freeze, I think. (Help page
examples are "features" because they become part of the test suite. An
unfortunate example could break the test suite on some platforms and
destabilize the whole process. Of course *this* particular case is
very likely harmless, but we need hard rules.) We can do it for
r-devel afterwards.

-- 
   O__  ---- Peter Dalgaard             Blegdamsvej 3  
  c/ /'_ --- Dept. of Biostatistics     2200 Cph. N   
 (*) \(*) -- University of Copenhagen   Denmark      Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk)             FAX: (+45) 35327907
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