Get a point estimate of the partition using the F-measure as the cost function.
cluster_est_Fmeasure(c, logposterior)a list:
c_est:a vector of length n. Point estimate of the partition
cost:a vector of length N. cost[j] is the cost
associated to partition c[[j]]
similarity:matrix of size n x n. Similarity matrix
(see similarityMat)
opt_ind:the index of the optimal partition among the MCMC iterations.
a list of vector of length n. c[[j]][i] is
the cluster allocation of observation i=1...n at iteration
j=1...N.
a vector of logposterior corresponding to each
partition from c used to break ties when minimizing the cost function
Francois Caron, Boris Hejblum
similarityMat