I'm teaching a GIS data structures using sp and I'd like to give a class on basic graphs. Does anyone have any experience with the various R packages in this area - what I have found so far: 

diagram Functions for visualising simple graphs (networks), plotting flow diagrams 
GrapheR A multiplatform GUI for drawing customizable graphs in R 
giRaph The giRaph package for graph representation in R 
graph graph: A package to handle graph data structures 
igraph Network analysis and visualization 
mathgraph Directed and undirected graphs 

Lee De Cola, PhD, MCP. 
DATA to Insight 
LDECOLA@COMCAST.NET 
Reston, Virginia 
571 315 0577 mobile 
703 709 6972 home & fax 


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