[R-sig-Geo] Cost distance analysis

[rick reeves]

Hi Chrissy:

I have had similar needs in the past, so I did some searching: The R 
package e1071 -

 http://cran.r-project.org/web/packages/e1071/index.html

..includes a routine for computing the shortest path distance matrix.

You might start with this package....

Or, the GRASS vector routine v.net.path might work for you.
There is a good data interface between R and GRASS: see the spgrass6 
package.

Rick Reeves


Huizhu "Chrissy" Li 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 
> 	[[alternative HTML version deleted]]
>
>
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-- 
Rick Reeves
Scientific Programmer/Analyst and Data Manager
National Center for Ecological Analysis and Synthesis
UC Santa Barbara
www.nceas.ucsb.edu
805 892 2533