[GRASS-dev] r.regression.multi failing

[Anna Petrášová]

On Wed, Mar 23, 2016 at 10:01 AM, Luca Delucchi <lucadeluge at gmail.com> wrote:
> On 23 March 2016 at 14:31, Paulo van Breugel <p.vanbreugel at gmail.com> wrote:
>> Hi,
>>
>
> 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?
>>
>
> did you try with try except ?

Yes, specifically:

from grass.exceptions import CalledModuleError

try:
    gscript.run_command(...)
except CalledModuleError:
   ...


>
>> Paulo
>>
>
> --
> ciao
> Luca
>
> www.lucadelu.org
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