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 graphAM graph with undirected edges
Number of Nodes = 4 
Number of Edges = 5 

 
how can I plot the object graph1?

Thanks in advance

Arber

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