On Tue, May 29, 2012 at 1:16 AM, Aziz, Muhammad Fayez <az...@illinois.edu> wrote: > > Hi everyone, > > I am using the fastgreedy.community function to get the $merges matrix and > the $modularity vector. This serves my purpose of testing modularity of my > graph. But I am "greedy" to plot the heat map and dendrrogram based on the > $merges dendogram matrix. I know that heatplot does the graphics part but I > am not sure if the dendogram generated by the heatplot will match the one > given by fastgreedy.community in all cases and that the heat map will > represent the same clustering.
No, they are different. To plot fast-greedy results as a dendrogram, see this and the follow-ups: http://lists.gnu.org/archive/html/igraph-help/2010-11/msg00059.html Gabor > Tell me if my apprehension is incorrect. Otherwise please let me know of any > alternatives. Here is the code I am testing so far: > > # http://igraph.sourceforge.net/doc/R/modularity.html > # http://igraph.sourceforge.net/doc/R/fastgreedy.community.html > # http://igraph.sourceforge.net/doc/R/graph.constructors.html > > library(igraph) > library(made4) > > g <- graph(c(1,2, 2,3, 3,1, 4,5)-1, , FALSE) > print(g) > ModuleInfo <- fastgreedy.community(g) > print(ModuleInfo) > heatplot(c(1,2, 2,3, 3,1, 4,5)) > > > Thanks > Fayez > Grad student UIUC > IL, USA > > [[alternative HTML version deleted]] > > ______________________________________________ > 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 <csa...@rmki.kfki.hu> MTA KFKI RMKI ______________________________________________ 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.
