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nassimhaddad/debugging_in_R.md

Last active December 11, 2015 03:48
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debugging process in R
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debugging_in_R.md

Routine:

  1. When an error occurs, the first thing that I usually do is look at the stack trace by calling traceback(): that shows you where the error occurred, which is especially useful if you have several nested functions.
  2. Next I will set options(error=recover); this immediately switches into browser mode where the error occurs, so you can browse the workspace from there.
  3. If I still don't have enough information, I usually use the debug() function and step through the script line by line.

Notes:

  • traceback() # shows the stack at the time of the last error
  • options(error =recover) # c brings you back to the beginning
  • debug() & debugonce()
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