On Wed, Apr 8, 2009 at 6:12 PM, jpearl01 <joshea...@hotmail.com> wrote: > > >>I am not sure what you mean. Of course you can plot it using different >>layouts, e.g. with layout.reingold.tilford (after choosing the root >>vertex in some way) and then it looks like a usual tree plot, but why >>would that be any better? > > I'd like to be able to distinguish between the nodes better. For example > the image that I get looks like: > http://www.nabble.com/file/p22954099/mst.gif mst.gif > > The tree nodes are just too close together to be able to read. I think the > problem might be that some distances between the nodes are *much* smaller > than other edges. The graph does not need to be directed, since the > distance metric does not imply a direction. The most important part is just > being able to see and differentiate between the nodes, and right now they > seem to be all lumped together. How can I make it more readable?
Make the graph undirected first and then choose the right plotting parameters. E.g. the following works fine for me: set.seed(2) g <- erdos.renyi.game(100, 300, type="gnm", directed=TRUE) E(g)$weight <- runif(ecount(g)) mst <- minimum.spanning.tree(g) mst <- simplify(as.undirected(mst)) lay <- layout.reingold.tilford(mst, root=which.max(degree(mst))-1) plot(mst, layout=lay, vertex.size=5, asp=FALSE, vertex.color=NA, vertex.frame.color=NA) G. > Thanks, > ~josh > > > -- > View this message in context: > http://www.nabble.com/Minimum-Spanning-Tree-tp22934813p22954099.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > -- Gabor Csardi <gabor.csa...@unil.ch> UNIL DGM ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.