> Finally, for your specific use case, see also ?withCallingHandlers which > can not only detect warnings, but also set callback functions which can > decide whether to abort or process and restart when a warning is thrown. > The documentation for that function is a little rough, though you can see > it in action in Hadley Wickham's evaluate package (specifically > evaluate/R/eval.r).
I've also written a little about it at http://adv-r.had.co.nz/Exceptions-Debugging.html#condition-handling. But I think the main problem is assuming that rm(list=ls()) "resets" back to a clean state. Apart from the last warning, there are many other things that this command will not clean up. You're much better off getting into the habit of restarting R. In Rstudio, this is particularly convenient because there's a keyboard shortcut (cmd + shift + F10). Hadley -- http://had.co.nz/ ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
