[GRASS-dev] r.stats output
Moritz Lennert
mlennert at club.worldonline.be
Wed Sep 24 04:12:45 PDT 2014
On 24/09/14 10:00, Paulo van Breugel wrote:
> I am trying to use r.stats to print out a text file with x and y
> coordinates as well as the area (or cell count). However, it seems any
> choice is mutually exclusive. If I choose to print the grid coordinates
> and to print the area, what I get is the coordinates with the category
> number. If I select to print the category labels and area, I only get
> the category labels.
>
> Am I doing something wrong, or is this the intended behaviour? If
> intended, would it be an idea to enable printing out any combination of
> selected outputs, e.g., coordinates and cell counts, or coordinates and
> area totals?
Area totals (or cell counts) are done by category. In other words: all
cells with a given category are summed up to give the total cell count,
area then just being cell count * resolution^2.
It thus does not make sens to provide coordinates for count or area:
which coordinates would you use if you have cells with the same category
all over your map ?
AFAIK, coordinates are only available for individual cells, so you can
export coordinates with their cat value for further treatment.
Moritz
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