Calculates the values of several fuzzy validity measures. The values
of the indexes can be independently used in order to evaluate and compare
clustering partitions or even to determine the number of clusters
existing in a data set.
Usage
fclustIndex(y, x, index = "all")
Arguments
y
An object of a fuzzy clustering result of class "fclust"
The validity measures and a short description of them follows, where
$N$ is the number of data points, $u_{ij}$ the values of the
membership matrix, $v_j$ the centers of the clusters and $k$
te number of clusters.
[object Object]