[GRASS-user] Re: r.neighbors modal filter for two raster layers

[maning sambale]

Well, it should be ","

r.mapcalc "test_andmode = mode (map1[-1,-1] , map1[-1,0] , map1[-1,1]
, map1[0,-1] , map1[1,-1] , map1[1,1] , map1[0,0] , map1[0,1] ,
map1[-1,0] , map2[-1,-1] , map2[-1,0] , map2[-1,1] , map2[0,-1] ,
map2[1,-1] , map2[1,1] , map2[0,0] , map2[0,1] , map2[-1,0])"



On Fri, Jan 30, 2009 at 2:16 PM, maning sambale
<emmanuel.sambale at gmail.com> wrote:
> What operator in mapcalc should I use to evaluate a mode from a given window:
> r.mapcalc "test_andmode = mode (map1[-1,-1] && map1[-1,0] &&
> map1[-1,1] && map1[0,-1] && \
> map1[1,-1] && map1[1,1] && map1[0,0] && map1[0,1] && map1[-1,0] &&
> map2[-1,-1] && map2[-1,0] && \
> map2[-1,1] && map2[0,-1] && map2[1,-1] && map2[1,1] && map2[0,0] &&
> map2[0,1] && map2[-1,0])"
>
> Is the && correct to list values?
>
> On Fri, Jan 30, 2009 at 11:53 AM, maning sambale
> <emmanuel.sambale at gmail.com> wrote:
>> Hi,
>>
>> Any ideas in doing this:
>>
>> I want to get the mode of raster categorical values for a defined
>> window based on 2 raster layers.
>> For example, I set a window of 5x5, so I get mode value from 50 pixels
>> (25 for raster a and 25 for raster 2).
>>
>> --
>> cheers,
>> maning
>> ------------------------------------------------------
>> "Freedom is still the most radical idea of all" -N.Branden
>> wiki: http://esambale.wikispaces.com/
>> blog: http://epsg4253.wordpress.com/
>> ------------------------------------------------------
>>
>
>
>
> --
> cheers,
> maning
> ------------------------------------------------------
> "Freedom is still the most radical idea of all" -N.Branden
> wiki: http://esambale.wikispaces.com/
> blog: http://epsg4253.wordpress.com/
> ------------------------------------------------------
>



-- 
cheers,
maning
------------------------------------------------------
"Freedom is still the most radical idea of all" -N.Branden
wiki: http://esambale.wikispaces.com/
blog: http://epsg4253.wordpress.com/
------------------------------------------------------