calculates the Xie-Beni index.
[XieBeniIndex] = GetXieBeniIndex(Samples, Centers, Memberships, NormType)
matrix that includes sample vectors as rows
matrix that includes cluster centers as rows
matrix of membership values, rows correspond to samples, columns correspond to clusters
norm of vectors, must be a scalar greater than zeros, can be %inf
This function evaluates a result of fuzzy clustering by the Xie-Beni index.
Xie, X. L., and Beni, G. 'A Validity Measure for Fuzzy Clustering', IEEE Trans. Pattern Analysis and Machine Intelligence, vol. 13, pp. 841-847, (1991)