[R] by & tapply

[Peter Dalgaard BSA]

Peter Malewski <y0004379 at tu-bs.de> writes:

> 
> xn <- codes(x1)
> coplot(y~xn|x2)
> 
> ##or you use a loop:
> 
> par(mfrow=c(2,2))
> for( i in unique(codes(x1))) plot.default(x2 [codes(x1)== i]
>                                           , y[codes(x1)==i ]
>                                           ,main=paste("Code:",i)
>                                           )

Eek. Please use as.integer(), not codes(), for this stuff. (help(codes)
for the explanation).

-- 
   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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