[GRASS-user] r.mapcalc: not the desired results

[Rich Shepard]

On Thu, 14 Dec 2017, Rich Shepard wrote:

>  I have two maps (sim_blk and sim_open, attached) and I want a map of the
> cell-by-cell differences between them. Using the equation,
> r.mapcalc "sim_max = max(sim_blk,sim_open)"

   Should have mentioned that the equation,
r.mapcalc "sim_diff = sim_blk - sim_open"

looks just like the sim_max map, and I expected it to show the difference
between the two maps cell-by-cell.

Rich