[R] Problem with Sweave not recognising \Sexpr{}

Greg Snow Greg.Snow at imail.org
Tue May 25 17:50:51 CEST 2010

What other packages do you have loaded?  Sometimes things interfere with each other.  Also, what version, os, etc are you working with? (the info asked for in the posting guide).

Gregory (Greg) L. Snow Ph.D.
Statistical Data Center
Intermountain Healthcare
greg.snow at imail.org

> -----Original Message-----
> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-
> project.org] On Behalf Of Mike White
> Sent: Tuesday, May 25, 2010 3:26 AM
> To: r-help at r-project.org
> Subject: [R] Problem with Sweave not recognising \Sexpr{}
> I am trying to run the Sweave example at
> http://www.stat.uni-muenchen.de/~leisch/Sweave/Sweave-Rnews-2002-3.pdf
> However, the \Sexpr{} code is not being evaluated, although the actual
> R
> code within the {} runs ok in R.
> Below is part of the resulting .tex file.  Can anyone help identify the
> cause? I am using R 2.10.1 on Windows XP.
> Consider the \texttt{cats} regression example from Venables \& Ripley
> (1997). The data frame contains measurements of heart and body weight
> of \Sexpr{nrow(cats)} cats (\Sexpr{sum(cats$Sex=="F")} female,
> \Sexpr{sum(cats$Sex=="M")} male).
> Thanks
> Mike White
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