Computes the Rand index, a measure of the similarity between two clusterings.
randIndex(tab, adjust = TRUE)
the Rand index of the input table.
a matrix giving the cross-tabulation table of two clusterings.
logical: should the "adjusted" version be computed?
Steve Horvath
W. M. Rand (1971). "Objective criteria for the evaluation of clustering methods". Journal of the American Statistical Association 66: 846-850