How to solve the error in feature selection method?

Hi,I am using FEAST toolbox for feature selection. I am getting the following error. Please help me to solve it.

The class label Y has entropy of 0, therefore all mutual informations containing Y will be 0. No feature selection is performed.

Answer 1

[Image Analyst]

I'm going to give the same answer as I gave to your duplicate question: http://www.mathworks.com/matlabcentral/answers/151119#answer_148833