[GRASS-dev] r.regression.multi failing

[Moritz Lennert]

Le Wed, 23 Mar 2016 15:55:40 +0100,
Paulo van Breugel <p.vanbreugel at gmail.com> a écrit :

> On 23-03-16 15:24, Anna Petrášová wrote:
> > 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 looks like a clear bug for me. So, even if I understand that you
need to work around it for now, could you also post a bug report with a
reproductible example ?

Moritz