The argument to partition_coeff is:

• soft_partition: the membership degree of each input data point in each cluster

The return value is:

• vpc: the partition coefficient for the given soft partition

To run demonstration code that uses this function, type "demo fcm" or "demo gustafson_kessel" (without the quotation marks) at the Octave prompt.

For more information about the soft_partition matrix, please see the documentation for function fcm.

See also: fcm, gustafson_kessel, partition_entropy, xie_beni_index