[GRASS-user] Generalization or interpolation using the majority

[Markus Metz]

2010/12/21 António Rocha <antonio.rocha at deimos.com.pt>:
> Hi Markus
>
> It seems that it does exacly what I want. I just have one question:
> I need to first set the region spatial resolution to 200 before I run
> r.resamp.stats right?

Yes. Resampling modules (r.resample, r.resamp.stats, r.resamp.interp,
r.resamp.rst) resample the map to match the current region settings.


> THanks
> Antonio
> Markus Metz wrote:
>>
>> 2010/12/21 António Rocha <antonio.rocha at deimos.com.pt>:
>>
>>>
>>> Greetings
>>>
>>> I have a raster classification  map with a 100 meters resolution and I
>>> want
>>> to interpolate to 200m resolution using GRASS and, the output value must
>>> be
>>> the most frequent value (majority).
>>>
>>
>> r.resamp.stats method=mode
>>
>> would do that
>>
>> Markus M
>>
>>
>>
>>>
>>> Here goes an examples. Intput:
>>> 1 1 1 1 1 2 3 4
>>> 1 2 2 3 2 2 3 3
>>> 2 2 5 2 2 2 2 2
>>> 3 2 5 5 1 3 4 5
>>> Output must be:
>>> 1 1 2 3
>>> 2 5 2 2
>>>
>>> My question is what method do you advise to be used?
>>>
>>> Thanks
>>> Antonio
>>>
>>>
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>>
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>
>
>
> __________ Information from ESET NOD32 Antivirus, version of virus signature
> database 5720 (20101221) __________
>
> The message was checked by ESET NOD32 Antivirus.
>
> http://www.eset.com
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>