similar to: matrix indexing (igraph ?)

Hello, I am exporting a graph in "gml" format from igraph 0.5.5. When I open the file in Cytoscape v.2.7 I can't map the color attribute that I assign to the graph when I export it from igraph. Could anyone help me in this? Thanks. -- Warm Regards, Sandeep Amberkar BioQuant,BQ26, Im Neuenheimer Feld 267, D-69120,Heidelberg Tel: +49-6221-5451354 [[alternative HTML version

I am getting some unexpected results from some functions of igraph and it is possible that I am misinterpreting the vertex numbers. Eg., the max betweenness measure seems to be from a vertex that is not connected to a single other vertex. Below if my code snippet: require(igraph) my.graph <- graph.adjacency(adjmatrix = my.adj.matrix, mode=c("undirected")) most.between.vert <-

On Mon, Oct 9, 2017 at 4:42 PM, Tom Callaway <tcallawa at redhat.com> wrote: > > On 10/09/2017 11:16 AM, Paul Smith wrote: >> >> I am trying to install >> >> igraph package >> >> but getting the following error: >> >> ------------------ >> make: *** [/usr/lib64/R/etc/Makeconf:159: foreign-graphml.o] Error 1 >> ERROR:

I am having trouble plotting one of my graphs (think graph theory graph with edges and vertices, not scatterplots or histograms). For some pairs of vertices, I want multiple edges to be visible in my graph. As an example of this, in my script below, I want two edges to be visible from vertex 1 and vertex 9 (among some others) yet when I plot it, only one edge is visible.

Hi, I am using 'igraph' to make some plots. The problem I got is that I don't know how to label the nodes with gene names. My sample code: ## suppose I have 100 gene (nodes) ## --------------------------------------------------------------------------- graph <- set.vertex.attribute(graph, "color", value=c(rep(c('green','red'),50))) graph <-

Hello: I've been trying for days now to get igraph working on a debian sarge install. There does not appear to be any pre-built packages, and when I try and install within R, it blows up on the final linking, claiming its unable to find libgfortran (which IS installed, and IS working for all other users of the compiler). I started up R and ran: install.packages("igraph"). It

igraph is a package for graphs/networks. It has a C core and uses a simple and fast graph representation allowing millions of vertices and edges. LINKS Release notes for the 0.5.2 version: http://igraph.sourceforge.net/relnotes-0.5.2.html Release notes for the 0.5.1 version: http://igraph.sourceforge.net/relnotes-0.5.1.html Complete list of changes: http://igraph.sourceforge.net/news.html The

igraph is a package for graphs/networks. It has a C core and uses a simple and fast graph representation allowing millions of vertices and edges. LINKS Release notes for the 0.5.2 version: http://igraph.sourceforge.net/relnotes-0.5.2.html Release notes for the 0.5.1 version: http://igraph.sourceforge.net/relnotes-0.5.1.html Complete list of changes: http://igraph.sourceforge.net/news.html The

igraph is a package for graphs and networks. It has a C core and uses a simple and fast graph representation allowing millions of vertices and edges. NEW FEATURES: - We use the ARPACK library for graph related eigenvalue problems, like Page Rank calculation, Kleinberg's hub and authority scores, eigenvector centrality, etc. There is also a generic interface if someone wants to use

igraph is a package for graphs and networks. It has a C core and uses a simple and fast graph representation allowing millions of vertices and edges. NEW FEATURES: - We use the ARPACK library for graph related eigenvalue problems, like Page Rank calculation, Kleinberg's hub and authority scores, eigenvector centrality, etc. There is also a generic interface if someone wants to use

Estimados Tengo un problema. Con igraph creo una red a partir de un data.frame, las dos primeras columnas son V y las restantes E. Hay un trabajo anterior, yo me pregunté ¿Qué pasaría si las cosas hablaran entre ellas?, entonces hay un cruce de información de todos contra todos y elimino los nulos y duplicados. Al ver los listados E, V tienen la información. Hasta ahí estaría todo bien (me

Hello Everyone! This is my first post to the mailing list so please forgive me if I am a bit deflected from the general format of this mailing list posts. Since I need help in this matter urgently, I would cover up any of my mistakes in posting later. That said, I have a problem in merging 2 graphs that have common nodes between them. I have a graph G1, that have nodes N1 and edge set E1 and

Hi, I'm trying to do some basic social network analysis with igraph in R, but I'm new to R and haven't been able to find documentation on a couple basic things: I want to run igraph's community detection algorithms on a couple thousand small graphs but don't know how to automate igraph looking at multiple graphs described in a single csv file. My data look like something in

Hello All, I have been trying to do bonpow for a while now.Bonpow works for few graphs and for few others it goes out of memory. I did see reply to one of the posting Alph Centrality Crashed in Igraph memory error. The solution in the posting was to use sparse matrix. This is the link of the message. http://lists.gnu.org/archive/html/igraph-help/2008-04/msg00071.html I was able to obtain

Estimado Javier, Me alegra que hayas avanzado con tu error. Te respondo a esto último. La función induced.subgraph() espera como segundo parámetro una lista de los IDs de los vértices, mientras que tú le estás pasando una lista de 'edges'. Prueba lo siguiente: c <- induced.subgraph(datos.network, which(V(datos.network)$name == 'Casa')) Si entendí bien todo, debería

Hi everyone, I have successfully created and analyzed my network data. I am new to R, and Network Analysis too, but I want to color my vertex based on some of the centrality measures calculated. Can someone point me in the right direction? Again, I am new to R, but given how powerful R appears to be, I figure this is probably pretty easy to do, I just wish I could figure it out. Many thanks

Does anybody know how to solve this error? postscript(file= "file.ps", family = "Helvetica", font = "Helvetica") plot.igraph(g, layout=layout.circle, vertex.label.font=2) dev.off() error in text.default(x, y, labels = labels, col = label.color, family = label.family, : family 'serif' not included in PostScript device Regards Knut

Dear All, I am trying to install igraph package but getting the following error: ------------------ make: *** [/usr/lib64/R/etc/Makeconf:159: foreign-graphml.o] Error 1 ERROR: compilation failed for package ?igraph? * removing ?/usr/lib64/R/library/igraph? ------------------ Any ideas? Thanks in advance, Paul

Hi, I've installed the igraph package and have been otherwise using it successfully, but when I try to use graph.bfs I get the error: could not find function "graph.bfs" Moreover, I don't seem to have the documentation installed either. (per ?graph.bfs and ??graph.bfs). I'm using RStudio v0.95.262 on windows 7. Below is the info for my R build: R version 2.14.0

Hi all, I want to find all the mappings of one graph in another graph, based on their vertex labels Is there any way to do this in igraph based on vertex labels. (as far as i know Igraph allows the subgraph isomorphism based only on vertex and edge colors) Eg: graph 1: x(1) x(2) x(2) y(3) y(4) x(1) z(5) x(2) graph 2: x(1) y(2) # the brackets contain the corresponding vertex ids i would like my