[R] Sweave, using xtable in a loop doesnt work?

Paul Hiemstra p.hiemstra at geo.uu.nl
Thu Apr 2 22:18:12 CEST 2009


Stacey Burrows schreef:
> I have a data.frame, data, with 30 factor variables. I would like to tabulate the frequencies of each variable and output to a tex file using Sweave. Here is my code chunk:
>
> <<label=tab, echo=FALSE, results=tex>>=
> library(xtable)
> for(j in 1:30){
>   cap <- paste("Frequency counts for Q",j,".", sep="")
>   xtable(t(table(data[,j])),caption=cap)
> }
> @
>
> Unfortunately when I compile the rnw file using Sweave, the tex file generated contains no tables. Is it not possible to use xtable within a loop like this? When I pull it out of the loop, it works fine.
>
> Thanks for any help,
> Stacey
>
>
>
>
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>   
Hi,

Try adding a print statement around the xtable command.

cheers,
Paul

-- 
Drs. Paul Hiemstra
Department of Physical Geography
Faculty of Geosciences
University of Utrecht
Heidelberglaan 2
P.O. Box 80.115
3508 TC Utrecht
Phone:  +3130 274 3113 Mon-Tue
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