R help - Oct 2004 - apply function

Hi all,

I have a question about apply function. Is that possible to pass some 
non-default arguments in the function we want to apply ?

For example:

if "mat" is a matrix and I want to use the "tabulate"
function on its row.

The command apply(mat,1,tabulate) works but I have problem with this one 
apply(mat, 1, tabulate(nbins=4)).

Any clue ?

Thanks,

	Eric



-- 
Eric Pellegrini, PhD
Computer-Chemie-Centrum
University of Erlangen-N??rnberg
N??gelbachstra??e, 25
D-91052 Erlangen
Germany

Try apply(mat, 1, tabulate, nbins=4).

HTH,
Andy
> From: Eric Pellegrini
> 
> Hi all,
> 
> I have a question about apply function. Is that possible to pass some 
> non-default arguments in the function we want to apply ?
> 
> For example:
> 
> if "mat" is a matrix and I want to use the "tabulate" 
> function on its row.
> 
> The command apply(mat,1,tabulate) works but I have problem 
> with this one 
> apply(mat, 1, tabulate(nbins=4)).
> 
> Any clue ?
> 
> Thanks,
> 
> 	Eric
> 
> 
> 
> -- 
> Eric Pellegrini, PhD
> Computer-Chemie-Centrum
> University of Erlangen-N??rnberg
> N??gelbachstra??e, 25
> D-91052 Erlangen
> Germany
> 
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide! 
> http://www.R-project.org/posting-guide.html
> 
>

Eric Pellegrini <eric.pellegrini at chemie.uni-erlangen.de> writes:
> Hi all,
> 
> I have a question about apply function. Is that possible to pass some 
> non-default arguments in the function we want to apply ?
> 
> For example:
> 
> if "mat" is a matrix and I want to use the "tabulate"
function on its row.
> 
> The command apply(mat,1,tabulate) works but I have problem with this one 
> apply(mat, 1, tabulate(nbins=4)).
> 
> Any clue ?
You might have gotten one by R'ing TFHP.... 

 apply(mat, 1, tabulate, nbins=4)

There's even an example!

-- 
   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