: for factors (PR#139)

[Peter Dalgaard BSA]

Andreas.Weingessel@ci.tuwien.ac.at writes:

> Warning in f1:f2 : Numerical expression has 6 elements: only the first used
> [1] 1
> 
> whereas R-0.61.2 yields
> 
> > f1:f2 # a factor, the ``cross''  f1 x f2
> [1] 1:1 1:1 1:2 2:2 2:3 2:3

Same as PR#40...

-- 
   O__  ---- Peter Dalgaard             Blegdamsvej 3  
  c/ /'_ --- Dept. of Biostatistics     2200 Cph. N   
 (*) \(*) -- University of Copenhagen   Denmark      Ph: (+45) 35327918
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