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

[Vaclav Petras]

On Tue, Mar 28, 2017 at 4:30 PM, Rich Shepard <rshepard at appl-ecosys.com>
wrote:

> Now I have the difference map which is a solid color...
> ...Ergo, no differences.
>

As Soeren mentioned in the other part of the thread, use r.univar to get
the statistics. Don't rely on just looking at the resulting raster map.
There can be things like outliers which may throw the visualization off.

Vaclav
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