[GRASSLIST:7011] Re: calculating center of intensity

[Hamish]

> If so, do the same for the y_coordinates and then calculate the center
> of mass "by hand" with the help of the r.stats module (because it
> doesn't appear that r.mapcalc has a sum() function).

r.univar has sum for entire map.

Separate coherent clouds by category number and then cycle a mask for
each value & run r.univar or as you mention use r.stats to do the same
in one step.



Hamish