debugging littler/Rscripts

Question

How do I debug Rscripts that are run from the command line?

I am currently using the getopt package to pass command line options, nut when the

Answer 1

Another option is to work with the options(error) functionality. Here's a simple example:

options(error = quote({dump.frames(to.file=TRUE); q()}))

You can create as elaborate a script as you want on an error condition, so you should just decide what information you need for debugging.

Otherwise, if there are specific areas you're concerned about (e.g. connecting to a database), then wrap them in a tryCatch() function.