[GRASS-user] Re: Eliminating values based on a null

[Hermann Peifer]

On 16/02/2011 18:12, Marcello Gorini wrote:
>
>> Jenny:
>>
>> in my base map (called X) I have a few null values and, in Y map I want to
>> eliminate pixels that match with null values in X. How can I do this?
>> besides using mapcalc
>
> r.series -n input=X,Y output=Y_without_X_nulls method=average (or any
> method)
>

Just curious: What exactly is the advantage of NOT using mapcalc?

Hermann