search for: igraph

Displaying 20 results from an estimated 103 matches for "igraph".

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2010 Jun 23
1
Trouble compiling igraph. . .
Been and R-user for about 5 years now in an industrial setting, and always find the mailing list most helpful. I have run into problem compiling igraph on R. I have contacted the maintainer of igraph, and he has determined that it is not an igraph problem. System is FreeBSD 7.2, R-2.10.1 [also have a sandbox machine running FreeBSD 7.3, R-2.11]. Both machines fail the installation of igraph. Here is the error: Error in dyn.load(file, DLLpath =...
2008 Jan 08
1
loading igraph package on Solaris
Hello, I'm having trouble getting the igraph package to load on Solaris. I can get igraph to compile and install from a local directory without issues using simply "R CMD INSTALL igraph", however "library(igraph)" from within R gives the following errors: Error in dyn.load(x, as.logical(local), as.logical(now)) :...
2017 Aug 03
1
error in installing igraph
Hi R users, I got warning messages when installing the package, and I pasted the messages below. I checked updates that my R-studio is already the newest version. I don't know how to solve the problem. Thanks for your help. > library(igraph) Error in dyn.load(file, DLLpath = DLLpath, ...) : unable to load shared object '/Library/Frameworks/R.framework/Versions/3.2/Resources/library/igraph/libs/igraph.so': dlopen(/Library/Frameworks/R.framework/Versions/3.2/Reso...
2013 Apr 21
1
cedta decided 'igraph' wasn't data.table aware
Hi, what does this mean? --8<---------------cut here---------------start------------->8--- > graph <- graph.data.frame(merged[!v,], vertices=ve, directed=FALSE) cedta decided 'igraph' wasn't data.table aware cedta decided 'igraph' wasn't data.table aware cedta decided 'igraph' wasn't data.table aware cedta decided 'igraph' wasn't data.table aware cedta decided 'igraph' wasn't data.table aware --8<---------------cut here...
2015 Dec 02
2
igraph o network
Estimados, estoy ?jugando? con unos datos clínicos donde realizo un análisis de redes, utilicé igraph como nerwork, pero finalmente uso igraph (creo que tiene más opciónes). Son algo de 200 nodos y algo más de 2000 relaciones. Puedo graficarlos. Los datos están de la siguiente forma, por ejemplo, individuo, patología, (las dos primeras columnas son la relación), luego un fármaco, el grupo farmaco...
2013 Jan 01
11
redes pathfinder
Estimados compañeros estoy con un trabajo sobre redes pathfinder y quería saber si conocéis alguna librería o función para dada la matriz de proximidades sacar la matriz de la red pathfinder. Un cordial saludo y un mejor año 2013. Juan -- ========================================================= Juan Antonio Gil Pascual Prof. Titular de Metodología Cuantitatíva correo: jgil en edu.uned.es
2017 Nov 07
2
Problem with r project in ubuntu xenial
For anyone who sees this conversation. There is a bug in installation of igraph in R language in Ubuntu. There is a solution in stackoverflow. We have to use the devtools. Write this code: install.packages("devtools") library(devtools) install_github("igraph/rigraph") If there are errors installing devtools just install any package that comments. On N...
2011 Mar 28
2
Questions about 'igraph' package.......
I am using 'igraph' package to make some graphs of 'gene-gene interaction'. I can get a data.frame which has three columns. gene1 gene2 pvalue AGT MLR 1.2e-04 MLR 11BHSD1 1.71e-05 IFG2 11BHSD2 2.2e-07 . . . ....
2016 Jun 01
2
data.frame colname igraph
Si, ese es el problema, lo que implica por ejemplo que no pueda ordenar el data.frame por grados. Javier Rubén Marcuzzi De: JCMld Enviado: miércoles, 1 de junio de 2016 4:28 Para: 'Javier Marcuzzi'; R-help-es en r-project.org Asunto: RE: [R-es] data.frame colname igraph Creo que la conversión a data.frame está devolviendo un data frame con una sola columna llamada "degree(datos.network)" y con los nombre de las filas "Ficha 1022", "Ficha 1024", etc., por eso el colnames da un error al intentar poner el nombre de 2 columnas en un data...
2009 Feb 26
1
layout of igraph
Dear R users, I am trying to draw a network using igraph package. I intend to place the hub nodes (the ones with the relatively more connection with other nodes) in the center of the graph. Also, the graph need to be in the fashion that the higher the correlation between two nodes is , the closer the two nodes will be. Is there any layout that can help...
2007 Oct 09
3
igraph and plotting connected components
Hello there, I am using the igraph package to build graphs from my data. If I plot a graph though, it's not easy for me to see what's going on. Does anybody know how to rearrange a graph to get a plot without too many crossing lines? Maybe other packages? Thanks a lot in advance for any pointers, -- D...
2011 Apr 11
1
forest + igraph ?
Hello, Is it possible to have two meta-plots in one graph (not par(mfrow=c(2,1))? But somthing like  library(metafor)  library("igraph")    if (interactive()) {     forest(dat.Treat$RR, ci.lb=dat.Treat$lower, ci.ub=dat.Treat$upper, xlab="Relative Risk",slab=dat.Treat$ID,refline=1)     forest(dat.Control$RR, ci.lb=dat.Control$lower, ci.ub=dat.Control$upper, xlab="Relative Risk",slab=dat.Control$ID,refline=1...
2016 Jun 01
2
data.frame colname igraph
...teristica", "grados")) : 'names' attribute [2] must be the same length as the vector [1] > Javier Rubén Marcuzzi De: JCMld Enviado: miércoles, 1 de junio de 2016 3:08 Para: 'Javier Marcuzzi'; R-help-es en r-project.org Asunto: RE: [R-es] data.frame colname igraph Por lo que envías, number_edges_vertex es un data frame con una sola variable, por lo que da error cuando quieres asignar el nombre de sus columnas como si fuesen 2 variables No sé si te refieres a eso... -----Mensaje original----- De: R-help-es [mailto:r-help-es-bounces en r-project.org] En nomb...
2010 Sep 11
0
igraph, graph layout and node overlaps
Dear all, I'm doing some experiments with igraph and in particular with graph layouts. I can't figure out how to apply a layout to a given (real) graph avoiding node overlaps. In the following example if the variable NumOfNodes is setted to a small value (10) the layout function generates a plot without node overlaps. But even with a not-so-...
2012 Jun 02
1
igraph and igraph0
Could someone tell me the difference between igraph and igraph0? I searched the CRAN web site, but cannot find an explantion of the differences. Thanks, Alan [[alternative HTML version deleted]]
2016 Mar 31
2
R igraph
Estimados Copio un mensaje de error que da igraph, es más fácil verlo que explicarlo. > fastgreedy.community(udatos) Error in .Call("R_igraph_community_fastgreedy", graph, as.logical(merges), : At fast_community.c:553 : fast-greedy community finding works only on graphs without multiple edges, Invalid value > cluster_louvain(u...
2016 Sep 06
2
igraph V a partir de E y subgrafos
...olución, que no comprendo pero arregla uno de los problemas. > > En la preparación de datos tengo varias partes, al final realizo un cbind y luego un merge, esto da error, pero si realizo merge y luego cbind, no hay error (no se ?pierde eso que comenté en el correo anterior?). > > Luego igraph crea el grafo y el sub grafo que al graficar es correcto. > > Ahora, porqué esa diferencia, no tengo la menor idea. > > Solo queda el problema de > >> c <- induced.subgraph(datos.network, E(datos.network)[[inc('Casa')]]) > Error in .Call("R_igraph_induced_sub...
2016 Sep 03
2
igraph V a partir de E y subgrafos
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 t...
2016 May 31
2
data.frame colname igraph
Estimados Tengo un problema, creo que sencillo, pero hay algo que hice mal, coloco el código, básicamente desde igraph se realiza un análisis, y se me ocurre tener un data.frame para ordenar los resultados, pero justo en ese punto aparece un problema. ¿Alguna sugerencia? > version _ platform x86_64-w64-mingw32 arch x86_64...
2010 Feb 11
1
igraph
Hello... I am a system engeenering student and I am using R for first time for Graph Theory. I would like to know if there is anyway you can plot an ghaph (igraph library) and obtain a graph whose vertices dont appear identified with number, instead I would like the vertices to be identified with letters or words, names... is there anyway I can do this? Thanks in Advance for your Help. Sincerly. Gabriela Prasad P.D. Sorry for my not at all perfec...