This function is a part of the DENFIS method to generate
cluster centers.
Usage
ECM(data.train, Dthr)
Arguments
data.train
a matrix(m x n) of data for training,
where m is the number of instances and n is the number of
variables where the last column is the output variable.
Dthr
the threshold value for the envolving
clustering method (ECM), between 0 and 1.