[R] deleting variables

Richard Pearson richard.pearson at postgrad.manchester.ac.uk
Tue Apr 29 17:27:13 CEST 2008



Ralf Goertz wrote:
> How can I automatically exclude one variable from being saved in the
> workspace when I quit an R session? The problem is I don't know how to
> erase a variable once it has been created.
> Background: I open a connection called "con" to a database server in my
> ~/.Rprofile. Obviously, the connection expires when quitting the R
> session. Unfortunately, the workspace is loaded after ~/.Rprofile is
> run. So "con" get overwritten by the old workspace. I thought of using
> .First() or .Last() but as these are functions I don't know how to
> modify global variables.
> Ralf
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Richard D. Pearson             richard.pearson at postgrad.manchester.ac.uk
School of Computer Science,    http://www.cs.man.ac.uk/~pearsonr
University of Manchester,      Tel: +44 161 275 6178
Oxford Road,                   Mob: +44 7971 221181
Manchester M13 9PL, UK.        Fax: +44 161 275 6204

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