Thank you. I will test it later today. /jm > Date: Thu, 16 Aug 2012 22:15:04 -0400 > From: [email protected] > To: [email protected] > Subject: Re: [igraph] Drawing MST ??? > > On Thu, Aug 16, 2012 at 10:11 PM, jameson mcfarlane > <[email protected]> wrote: > > G, > > Rather than having the straight lines I would prefer to have the drawing > > look like roots of a tree. > > Try the 'circular=TRUE' option of the Reingold-Tilford layout generator. > > > I would like to see smaller and larger circles > > depending on the number of nodes. Hence, I believe it should be the vertex > > sizes. > > Then just set > > vertex.size=degree(graph) * 10 > > or something similar in plot(). The factor 10 might need some experimenting. > > You can do interactive plotting via tkplot() and then use > tkplot.getcoords() to query the coords you have manually adjusted. > > Gabor > > > Thank you, > > jameson > > > >> Date: Thu, 16 Aug 2012 19:00:10 -0400 > >> From: [email protected] > >> To: [email protected] > >> Subject: Re: [igraph] Drawing MST ??? > > > >> > >> Hi Jameson, > >> > >> On Thu, Aug 16, 2012 at 5:04 PM, jameson mcfarlane > >> <[email protected]> wrote: > >> > Hi Everyone, > >> > I currently have a minimum spanning tree (MST) looking like > >> > this: see attachment msta.gif. > >> > But I want it to look like this: mstb.gif > >> > >> What do you mean exactly by 'this'? Same font? Vertex sizes? Layout? > >> Labels? Color? Image size? Something else? > >> > >> Or really exactly like mstb.gif? Then just use mstb.gif. :) > >> > >> G. > >> > >> > Here is the code (below) using igraph. I'd greatly appreciate any help. > >> > Thank you > >> > > >> > library(igraph) > >> > tab <- read.csv("NewJam6.csv") > >> > tab <- tab[,-1] > >> > g <- graph.adjacency(as.matrix(tab), weighted=TRUE) > >> > V(g)$label <- V(g)$name > >> > mst <- as.undirected(minimum.spanning.tree(g)) > >> > > >> > lay <- layout.reingold.tilford(mst, root=which.max(degree(mst))-1) > >> > lay <- cbind(lay[,2], lay[,1]) # rotate > >> > x11(width=15, height=8) > >> > plot(mst, layout=lay, vertex.size=5, vertex.size2=10, > >> > vertex.shape="circle", asp=FALSE, > >> > vertex.label.cex=0.7, vertex.color="green") > >> > > >> > ________________________________ > >> > From: [email protected] > >> > To: [email protected] > >> > Date: Wed, 8 Aug 2012 16:58:51 +0000 > >> > Subject: [igraph] Square Matrix /MST > >> > > >> > Hello Everyone, > >> > I'm rather new to igraph. I am using Windows 7 to create an MST > >> > (Minimum Spanning Tree) with the attached data file. However, I keep > >> > getting > >> > that this data is not a square matrix. Any kind of help will be much > >> > appreciated. > >> > > >> > Thank you, > >> > Jameson > >> > > >> > _______________________________________________ igraph-help mailing list > >> > [email protected] > >> > https://lists.nongnu.org/mailman/listinfo/igraph-help > >> > > >> > _______________________________________________ > >> > igraph-help mailing list > >> > [email protected] > >> > https://lists.nongnu.org/mailman/listinfo/igraph-help > >> > > >> > >> > >> > >> -- > >> Gabor Csardi <[email protected]> MTA KFKI RMKI > >> > >> _______________________________________________ > >> igraph-help mailing list > >> [email protected] > >> https://lists.nongnu.org/mailman/listinfo/igraph-help > > > > _______________________________________________ > > igraph-help mailing list > > [email protected] > > https://lists.nongnu.org/mailman/listinfo/igraph-help > > > > > > -- > Gabor Csardi <[email protected]> MTA KFKI RMKI > > _______________________________________________ > igraph-help mailing list > [email protected] > https://lists.nongnu.org/mailman/listinfo/igraph-help
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