R help - Jul 2012 - igraph node placement

Hello R users,

 

I've just defended my PhD dissertation, and I'm engaging in discussions
with
the "ruler lady".  She has some problems with my figures.  The problem
is
that my nodes overlap the text that I've put inside of them.

 

Here is a url for the figure:

https://www.msu.edu/~wolfste4/igraph/sorter34_graphvfr.pdf

(As you can see, the cluster at the center left of this graph is quite
problematic.)

 

Also, I've got a file with the weighted adjacency matrix in it here:

https://www.msu.edu/~wolfste4/igraph/sorter34

 

This is the code that I'm using to make the graph:

_____________________________________________________________

require(igraph)

# Get weighted adjacency matrix:

fname=<sorter34 location>

load(fname)

 

# Now make graphs and plot them:

gg=graph.adjacency(wadj,mode="max")

 

V(gg)$name = 1:50

V(gg)$label = V(gg)$name

E(gg)$weight = count.multiple(gg)

gg = simplify(gg)

wt = 2*E(gg)$weight*E(gg)$weight

 

 

par(mar=c(0, 0, 0, 0))  #c(bottom, left, top, right)

l=layout.fruchterman.reingold(gg,coolexp=10)

plot.igraph(gg, layout=l, vertex.color=gray(0.8), edge.width=wt,
vertex.label.color='black',

                                edge.color=gray(0.2), vertex.label.cex=1.5,
vertex.size=12)

 

____________________________________________________________________

 

Thanks in advance for your help!

-Steve

 

_______________________________________________________

Steven Wolf

Michigan State University

Lyman Briggs College

35 E. Holmes Hall

East Lansing, MI 48823

 


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