[GRASS-dev] r.series: thresholding?

[Markus Neteler]

On Wed, Oct 15, 2008 at 5:46 PM, Glynn Clements
<glynn at gclements.plus.com> wrote:
> Markus Neteler wrote:
>
>> would it be possible to add a threshold parameter to r.series?
>> In our case, we want to consider only pixels above a certain
>> value (>=).
>>
>> Not sure about the implementation: have two flags to define
>> above/below?
>
> Implemented in r33886.
>
> r.series has a new option, range=lo,hi; values outside of this range
> are treated as null (i.e. will be ignored by most aggregates, or will
> cause the result to be null if -n is given).
>
> The values are FP, so you can use -inf or inf for a single threshold,
> e.g. range=0,inf to ignore negative values.

Excellent & quite helpful. I have slightly expanded the docs,
tested and backported it as r33905 to G6.4.

Markus