Hi,

I am using r.regression.multi in a python script (using grass.run_command()) to compute the variance inflation factor (VIF). It runs in a loop, regressing variables one by one to all the other variables. It sometimes happen that the function fails with:

WARNING: Matrix is unsolvable
ERROR: Multiple regression failed

This causes my script to stop. However, I would like to capture this warning / error, and continue. Do you know how I can accomplish this?

Paulo
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