[igraph] plotting graphs with edges of various length

[aschmid1]

Hi,
I thought that the commands
gm<-set.edge.attribute(gm, "weight", index=E(gm), value=weights)
gm<-set.edge.attribute(gm, "length", index=E(gm), value=weights)
ensure that plot(gm) yields the edge lengths corresponding to the values 
of vector weights. It seems not the case. I attach the graph in which 
blue edges have weights < 1 and red edges have weights >1. However, some 
red edges look shorter than some blue edges.
Thanks much, Alec

pcor2013-7-12.png
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