[R-sig-Geo] Flow accumulation in R?

[jgarcia at ija.csic.es]

Hi Jonathan,
I think the function topidx (in library topmodel) is what you are after.
It returns two rasters; look at the second one.
Best wishes,
Javier
---

> On 09/28/11, Jonathan Greenberg, wrote:
>> R-sig-geo'ers:
>>
>> I was wondering if anyone had implemented flow accumulation in R (e.g.
>> http://www.cs.duke.edu/geo*/terraflow/)?
>>
>> --j
>
> Hi Jonathan,
>
> I couldn't say if it has been implemented in R for sure, but several
> surface
> flow variations are implemented in the GRASS GIS, and GRASS can be
> connected to
> R, if that is helpful. Check out r.watershed and r.terraflow in GRASS.
>
> Yours,
>
> Ashton
>
>
>
> -----
> Ashton Shortridge
> Associate Professor			ashton at msu.edu
> Dept of Geography			http://www.msu.edu/~ashton
> 235 Geography Building		ph (517) 432-3561
> Michigan State University		fx (517) 432-1671
>
> _______________________________________________
> R-sig-Geo mailing list
> R-sig-Geo at r-project.org
> https://stat.ethz.ch/mailman/listinfo/r-sig-geo
>