[GRASS-user] Select random cells from map

[António Rocha]

Hi. I missed that r.random :) It seems to do what I need. I just need to 
understand a bit more what is the COVER parameter
Thanks nikos

Nikos Alexandris wrote:
> António Rocha:
>   
>> Hi there
>> I need to randomly select non-null cells from a given map. I tried
>> r.random.cells but I cannot define a maximum number random cells and
>> some selected random cells are not valid values in my map. is there any
>> other function to randomly select cells from a raster?
>>     
>
> Doesn't "r.random" (not "r.random.cells") work? I think it works on/for non-
> NULL cells.
>
> In case r.random.cells and its capabilities are required, couldn't you just 
> create a non-NULL MASK and limit its operation as you wish?
>
> Nikos
>
>
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