Is it possible to include a Sexpr before the expression has been evaluated in Sweave / R ?
- by PaulHurleyuk
Hello,
I'm writing a Sweave document, and I want to include a small section that details the R and package versions, platofrms and how long ti took to evalute the doucment, however, I want to put this in the middle of the document !
I was using a \Sexpr{elapsed} to do this (which didn't work), but thought if I put the code printing elapsed in a chunk that evaluates at the end, I could then include the chunk half way through, which also fails.
My document looks something like this
%
\documentclass[a4paper]{article}
\usepackage[OT1]{fontenc}
\usepackage{longtable}
\usepackage{geometry}
\usepackage{Sweave}
\geometry{left=1.25in, right=1.25in, top=1in, bottom=1in}
\begin{document}
<<label=start, echo=FALSE, include=FALSE>>=
startt<-proc.time()[3]
@
Text and Sweave Code in here
%
This document was created on \today, with \Sexpr{print(version$version.string)} running
on a \Sexpr{print(version$platform)} platform. It took approx sec to process.
<<>>=
<<elapsed>>
@
More text and Sweave code in here
<<label=bye, include=FALSE, echo=FALSE>>=
odbcCloseAll()
endt<-proc.time()[3]
elapsedtime<-as.numeric(endt-startt)
@
<<label=elapsed, include=FALSE, echo=FALSE>>=
print(elapsedtime)
@
\end{document}
But this doesn't seem to work (amazingly !)
Does anyone know how I could do this ?
Thanks
Paul.
