[R] more about outer

[Peter Dalgaard BSA]

Erich Neuwirth <erich.neuwirth at univie.ac.at> writes:

> thanks,
> 
> your original code did not wortk for me,
> but the following version seems to work
> 
> 
> vectorize2 <- function(f) 
>     function(x, y,...)
>         sapply(1:length(x), function(i)f(x[i],y[i],...))
> 
...
> > vectorize2 <- function(f)
> >     function(x, y,...)
> >         sapply(seq, along=x, function(i)f(x[i],y[i],...))

Oops, yes. What I meant was
 
  sapply(seq(along=x), function(i)f(x[i],y[i],...))

(There's a difference if length(x) == 0)
-- 
   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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