[R-sig-Geo] network analysis indices

elijah wright elw at stderr.org
Mon Apr 11 20:02:38 CEST 2005

> I am interested in computing network indices for a road network for my 
> dissertation research.  So far, all I have found is standard 
> transportation software that can calculate the shortest route and 
> overall length.  I would like to find something that can compute indices 
> of cyclomatic number, connectivity, vertex accessibility, shape and 
> others. These are mostly based on connectivity matrices, so I was 
> thinking that R might be very suitable for this purpose.  They were 
> published in the transportation literature 40 years ago, but I have as 
> yet to find any automation of these calculations.  Anybody have any 
> ideas?

maybe you can spin something out of the R SNA (social network analysis) 
package?  it works very well for a lot of tasks.


More information about the R-sig-Geo mailing list