Look at Luke Tierney's codetools package.
https://stat.ethz.ch/pipermail/r-devel/2003-July/027103.html
It is useful, and has been run over R itself several times.
On Mon, 11 Apr 2005, Vivek Rao wrote:
An R script will terminate when one tries to use an undefined variable, with a message such as
Error in print(x) : Object "x" not found
This run-time error might occur after the script has already been running for some time. In some cases it would be nice to get such warnings before the script is run, just as a syntax error caused by a missing parenthesis is caught.
Are there any "static analysis" tools for R? Such a tool would not have to be perfect to be useful. Besides using undefined variables, defining variables that are never used is something I'd like to be warned about.
-- Brian D. Ripley, [EMAIL PROTECTED] Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +44 1865 272595
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