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
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