Hi Chrissy,

I think a good idea may be you
try R inside GRASS, so you can
run all grass gis capability and
integrate the outputs with R capabilities.

cheers

milton

On Fri, May 1, 2009 at 12:27 AM, Huizhu "Chrissy" Li
<chrissy.li@yahoo.com>wrote:

> Dear All,
>
> I am working on a project which involves shortest path, cost distance
> analysis. I could not find any package in R that can do this analysis. Does
> anyone know which package has related functions?
> Thank you in advance!
>
> Chrissy
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