This function is used for Fuzzy Clustering.
fuzzy_cluster_means(dat, kc = 2, sf = 2, nstart = 1,
max_iter = 100, epsm = 0.000001)fuzzy_cluster(dat, kc = 2, init_centers, sf = 3, max_iter = 100,
epsm = 0.000001)
A data.frame contained only predict variables.
The number of cluster center (default is 2),
Default is 2.
The number of random groups (default is 1),
Max iteration number(default is 100) .
Default is 1e-06.
Initial centers of obs.