General suggestions for debugging in R

Question

I get an error when using an R function that I wrote:

Warning messages:
1: glm.fit: algorithm did not converge 
2: glm.fit: algorithm did not converge 
         


        

Answer 1

My general strategy looks like:

1. Run traceback() to see look for obvious issues
2. Set options(warn=2) to treat warnings like errors
3. Set options(error=recover) to step into the call stack on error