Robert Gentleman wrote: > > Hi Ben, > Sorry for the slow reply, but something like this works, > > [...] > Sorry not to have responded sooner. I had actually worked it out for myself (after finding another e-mail exchange on the Bioconductor list that indicated the problem had been solved). This is a fragment of a larger piece of code, but here's what I did to make the line widths proportional to sqrt(edge weight): en = edgeNames(gr2) lw = sqrt(unlist(edgeWeights(gr2))) en2 = gsub("~",".",en) lw2 = lw[en2] names(lw2) = en eAttrs <- list(lwd=lw2) ## sublists and node attributes defined earlier ... plot(gr2,subGList=sglist2,nodeAttrs=nAttrs,edgeAttrs=eAttrs,"neato") thanks for such useful tools! sincerely Ben Bolker -- View this message in context: http://www.nabble.com/linewidth-in-Rgraphviz-tf4565412.html#a13098418 Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.