[R] Using xtable with summaries of lm objects

[Peter Dunn]

Hi all

Suppose I do the following:

set.seed(1000)
library(xtable)
x <- runif( 10 )
y <- 1 + 2*x + rnorm( length(x) )
test.lm <- lm( y ~ x )
summary( test.lm )
xtable ( summary( test.lm ) )

The final  xtable  output follows:

% latex table generated in R 1.8.1 by xtable 1.2-2 package
% Tue Jun 22 09:56:36 2004
\begin{table}[ht]
\begin{center}
\begin{tabular}{rrrrr}
\hline
  & Estimate & Std. Error & t value & Pr($>$$|$t$|$) \\
\hline
(Intercept) & 0.5731 & 0.4396 & 1.30 & 0.2286 \\
x & 1.9680 & 0.8894 & 2.21 & 0.0578 \\
\hline
\end{tabular}
\end{center}
\end{table}


Notice this line:
    & Estimate & Std. Error & t value & Pr($>$$|$t$|$) \\

This will not LaTeX correctly, as teh string `$$' occurs;
presumably it should read something like:
    & Estimate & Std. Error & t value & Pr({$>$}{$|$}t$|$) \\
or (better IMHO):
    & Estimate & Std. Error & $t$ value & Pr($>|t|$) \\

I searched the archives, and couldn't find any reference to this
bug; perhaps its just me!  Is there a known workaround (as I want
to auto-generate these table using  Sweave; I know I could
cut-and-paste the table, and correct as appropriate).

Thanks as always.

P.


 > version
          _
platform i686-pc-linux-gnu
arch     i686
os       linux-gnu
system   i686, linux-gnu
status
major    1
minor    8.1
year     2003
month    11
day      21
language R



-- 
Dr Peter Dunn          (USQ CRICOS No. 00244B)
   Web:    http://www.sci.usq.edu.au/staff/dunn
   Email:  dunn @ usq.edu.au
Opinions expressed are mine, not those of USQ.  Obviously...