04-25-2018
Version 0.1.14
* Error fixed.

04-24-2018
Version 0.1.13
* Demo for Sigma-K-means added.

04-21-2018
Version 0.1.12
* Sigma-K-means added.

11-18-2017
Version 0.1.11
* Minor problem fixed.

11-18-2017
Version 0.1.10
* New functionality added.

09-25-2017
Version 0.1.9
* Error fixed.

09-03-2017
Version 0.1.8
* New functions added.

12-03-2016
Version 0.1.7
* Reference fixed.

12-02-2016
Version 0.1.6
* Reference added.

12-02-2016
Version 0.1.5
* Running time fixed.

12-01-2016
Version 0.1.4
* New functions added.

04-14-2016
Version 0.1.3
* New functions added.

03-10-2015
Version 0.1.2
* Memory allocation error fixed.

30-09-2015
Version 0.1.1
* First version built.

