[GRASS-user] r.mapcalc: compare two maps [RESOLVED]

[Vaclav Petras]

On Wed, Mar 29, 2017 at 8:46 PM, Rich Shepard <rshepard at appl-ecosys.com>
wrote:

> n=140652
> null_cells=71271
> cells=211923
>

Relatively hight number of null cells.


> min=-1.89342188835144
> max=0.00093058729544282
> range=1.89435247564688
>

Probably small differences, but there is at least one outlier.


> mean=-5.03205256742558e-05
> mean_of_abs=5.24979771199771e-05
> sum=-7.07768257713542
> median=0
>

The overall differences are small or cancel out as they are distributed
around zero.

Looking at histogram may also help you interpret these statistics.
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