[GRASS-user] calculation of mean and standard deviation of several rasters

[Hamish]

Johannes wrote:
> I've got several maps with the same regional extend and
> same resolution (output of several model runs). Now I'd like
> to calculate the mean and the standard deviation of each
> cell for all the overlaying rasters. 
> 
> I just found the mode/median/min/max function of the
> mapcalculator. Is there a mean and SD function for mapcalc
> or is there any other way? Or do I have to calculate it by
> "hand" (defining the formula in mapcalc). 
> 
> If not possible I also thought about exporting all maps to
> a numpy array and calculating with numpy/scipy but I'd like
> to do it in grass due to time reasons...


-> check out r.series


Hamish