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> Hi SOCNETTers,
> I was wondering first what is the algorithm that is used for the
> spring-embedding for visualization under Layout, graph theoretic layout,
> spring embedding in NetDraw. Is it Eades or Kamada and Kawai or something
> else? I couldn't see to find out, but I did find this source for graph
> drawing algorithms (
> Second question has to deal with whether the results from spring-embedding
> which appears to cluster nodes similar together into clusters is similar to
> weighted average hierarchical clustering which also groups nodes that are
> similar according to distance. I did a study and it looks like when I use
> Netdraw's spring embedding to visualize the network, the clusters that are
> found seem to correspond similarly to that found by doing a weighted average
> hierarchical clustering on the same nodes and looking at the cluster
> ordering through the dendrogram. I was curious to know if the two methods
> are similar and if so, are there any references to compare the two in terms
> of performance and accuracy.
> Thanks for any help you can provide.
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