[GRASS-user] Use of r.mode

[Monica Buescu]

Hi Mich
Thanks for the reply. I think it has worked but everytime I try to open, my
winGRASS goes "bananas".
Just to sum what I have done
1- Import a xyz ASCII file that is a float with a range of [166297.00 -
20855944.0] (not all values are used) and Rows:         4655 ;Columns:
 4520  .
2- I did r.mapcalc int() to this file that gets the range of [166297
 20855944].
QUESTION: can I apply int to a FLoat with values as big as this?
3- I did r.mode base=int_base coverage= 11073_B at PERMANENT (it's a
high-resolution image) output=output1

Ok it runs (it takes some time as expected)
Thern if I try to display it freezes... Even If I just try r.info output1 it
also freezes.

Any thoughts aboutt this? (Thanks Micha)

On Tue, Oct 19, 2010 at 2:14 PM, Micha Silver <micha at arava.co.il> wrote:

> Monica Buescu wrote:
>
>  Greetings
>>
>> This new topic is related with
>>
>> I need to calculate mode for a base map that is composed by float values.
>> r.mode base=base at PERMANENT cover=11073_B at PERMANENT output=saida
>>
>> And I get:
>> ERROR: reading r.stats output
>> ERROR: No rules specified
>>
>> This means that I'm not being able to apply this function just because my
>> base map is a Float. Any ideas of how to fix this?
>>
> How about r.mapcalc base_integer=int(base) ?
>
> The base map should be integer (category ) values, where the mode is
> calculated for all cells with the same cat value, so it indeed should be an
> integer raster.
>
>
>> Thanks
>> Monica
>>
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