Johannes, with the igraph package, this would be something like
library(igraph) g <- graph.data.frame( data.frame(from=data$acra, to=data$acrb, weight=data$expab)) Gabor On Sun, Sep 23, 2007 at 11:39:40AM -0400, Johannes Urpelainen wrote: > Hi, > > I am trying to construct a social network from a data frame with rows > > acra numa acrb numb year expab eabo impab iabo > 10 USA 2 CAN 20 1957 4017.000 0.0 3187.000 0.0 > 91 USA 2 CUB 40 1957 628.000 0.0 526.000 0.0 > 144 USA 2 HAI 41 1957 25.000 0.0 20.000 0.0 > > and so on. > > I want the network to have directed edges from node acra to node acrb > weighted by expab. What is the most convenient way to construct this > network object? > > Thank you very much! > > Best, > > -- > Johannes Urpelainen > > ______________________________________________ > 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. -- Csardi Gabor <[EMAIL PROTECTED]> MTA RMKI, ELTE TTK ______________________________________________ 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.