C50, class, e1071, infotheo, MASS, rpart, stats, utils
cluster, e1071, infotheo, MASS, rpart, rrcov, stats, utils
cluster, clusterCrit, e1071, infotheo, MASS, rpart, rrcov,
stats, utils
cluster, clusterCrit, ECoL(>= 0.3), e1071, infotheo, MASS,
rpart, rrcov, stats, utils