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Displays a plot of the blocked data matrix, given a blockmodel object.
# S3 method for blockmodel
plot(x, ...)
An object of class blockmodel
Further arguments passed to or from other methods
None
Plots of the blocked data matrix (i.e., the data matrix with rows and columns permuted to match block membership) can be useful in assessing the strength of the block solution (particularly for clique detection and/or regular equivalence).
White, H.C.; Boorman, S.A.; and Breiger, R.L. (1976). ``Social Structure from Multiple Networks I: Blockmodels of Roles and Positions.'' American Journal of Sociology, 81, 730-779.
Wasserman, S., and Faust, K. (1994). Social Network Analysis: Methods and Applications. Cambridge: Cambridge University Press.
# NOT RUN {
#Create a random graph with _some_ edge structure
g.p<-sapply(runif(20,0,1),rep,20) #Create a matrix of edge
#probabilities
g<-rgraph(20,tprob=g.p) #Draw from a Bernoulli graph
#distribution
#Cluster based on structural equivalence
eq<-equiv.clust(g)
#Form a blockmodel with distance relaxation of 10
b<-blockmodel(g,eq,h=10)
plot(b) #Plot it
# }
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