Solved by KFrank in post #4 
              
              
                Hi Mehran! 

Let me draw a distinction between two different problems.  When I 
say “multiclass” I mean more than two classes, that is, not binary. 
(So, for example, classes A, B, C, and D, rather than just “yes” or 
“no.”)  But each sample is of exactly one of the classes. 
When I say “multilabel”…