For a sample of clusterings of the same objects the proportion of clusterings in which observation
i and j are together in a cluster is computed and a matrix containing all proportions is given out.
Usage
comp.psm(cls)
Arguments
cls
a matrix in which every row corresponds to a clustering of the ncol(cls) objects
Details
In Bayesian cluster analysis the posterior similarity matrix is a matrix whose entry
[i,j] contains the posterior probability that observation i and j are together in a cluster.
It is estimated by the proportion of a posteriori clusterings in which i and j cluster together.