similar to: drawing the graph with many nodes

Hi All, After a lengthy battle just to get the package installed, I am not able to actually use Rgraphviz to generate any plots. I tried just using the sample code in the documentation (http://www2.warwick.ac.uk/fac/sci/moac/people/students/peter_cock/r/rgraphviz/) and I get the following: *> > library(Rgraphviz) > test.matrix<-matrix(rep(c(0,1,0,0), 9), ncol=6, nrow=6) >

Hello, I am working with graph and adjacency matrix, the package 'graph' seems to be appropriate for this. An example in the package > mat <- rbind(c(0, 0, 1, 1), + c(0, 0, 1, 1), + c(1, 1, 0, 1), + c(1, 1, 1, 0)) > rownames(mat) <- colnames(mat) <- letters[1:4] > graph1 <- new("graphAM", adjMat=mat) > graph1 A

Hello, I apologise if someone has already answered this but I searched and googled but didn't find anything. I have a matrix which gives me the similarity of each item to each other. I would like to turn this matrix into something like what they have in the graph package with the nodes and edges. http://cran.r-project.org/doc/packages/graph.pdf . However I cannot find a method to

Hello, Does anyone know of a way of finding all the nodes that are between a pair of specified nodes in the excellent graph package (R vers 2.5.0). I have a class(graphAM) object and need to determine all possible pathways in this object. Here's an example: In the simple case of a--b--c (where -- denotes "conected to") the list of all pathways would be: ab ba abc cba cb bc.

Hi, I'm trying to create a connectivity diagram using RgraphViz library. I want to increase the edge's label fontsize, but the size did not change. Did I do something wrong ? M <- matrix(nrow=5,ncol=5,byrow=TRUE,data=mytable) colnames(M) <- levels(pf$agent) A <- new("graphAM", M, "directed", values = list(weight=M)) eAttrs <- list() ew <-

I am getting the following problem with make check-all on the June 24 rc. I realize I could probably fix it by installing/setting a path to the sty file, but I don't remember having to do that for make check-all in the past. Paul Gilbert ___________ .... checking package 'Matrix' * checking for working pdflatex ... OK * using log directory

I represent a graph as an adjacency matrix of class "dgCMatrix" (from the Matrix package). > xx 5 x 5 sparse Matrix of class "dgCMatrix" a b c d e a . 1 1 . . b 1 . 1 . . c 1 1 . 1 1 d . . 1 . 1 e . . 1 1 . To check if the matrix defines and undirected graph, I have made the following functions/methods: is.UG <- function (object) { UseMethod("is.UG") }

The bulk is on my forums - the final post for today is: Results to date: A. It looks like I am going to need a newer compiler for C - xlc/xlC V11 apparently does not understand this code: "/data/prj/cran/R-3.2.3/src/main/memory.c", line 2149.31: 1506-046 (S) Syntax error. I will have to check if R-devel has different code before asking for assistence. +2139 #ifdef

Hello, I have a rather large set of data I need to analyze, currently I need to work with a 200000 by 200000 matrix, I'm using the package bigmemory but so far I can only allocate a 66000 by 66000 matrix, when I increase those values I get the following error:   > AdjMat <- big.matrix(nrow=68000,ncol=68000) Cannot allocate memory BigMatrix.cpp line 225 Error in big.matrix(nrow = 68000,