[R] Hmisc latex function with longtable option

Frank E Harrell Jr
Wed, 02 Jul 2008 16:46:05 -0000

Erik Iverson wrote:
> Hello -
>
> I'm trying to use Hmisc's latex function to produce a postscript
file of
> a data.frame, using the longtable = TRUE option.  When I run, for example,
>
> ## sample R code
> dvips(latex(data.frame(a = rnorm(100), b = rnorm(100)),
>             longtable = TRUE), file = "test.ps")
>
> latex runs successfully and a test.ps file is produced.  However, I see
> the following in the output that the latex command sends to the R buffer.
>
> ...
> Package longtable Warning: Column widths have changed
> (longtable)                in table 1 on input line 121.
>
>
> Package longtable Warning: Table widths have changed. Rerun LaTeX.
> ...
>
> And the resulting test.ps file has the column headings not aligned (in
> my real life example, there are other misalignments).
>
> To resolve this, I am currently going into the /tmp/Rtmp****/ directory
> where the .tex files are created by the dvi.latex function, and
> rerunning latex on the appropriate file****.tex file.
>
> Is there any thing I'm missing that would make this easier?
>
> Thanks,
> Erik Iverson
> iverson at biostat.wisc.edu

longtable requires two passes at the LaTeX code to finish the job.  If
you use

m <- latex(..., file='my.tex')

and \include{my} in a master document, you can run latex twice on the
master to get the desired result.

Frank

>
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--
Frank E Harrell Jr   Professor and Chair           School of Medicine
                      Department of Biostatistics   Vanderbilt University