Solved by KFrank in post #4 
              
              
                Hi Ninoslav! 

I have a few comments: 
First, to reiterate, since you want to “look inside” you classes, drilling 
down into what you call the “class components,” it seems unnatural to 
me to treat this as a single-label, four-class problem rather than a 
multi-label, two-class problem.  By using yo…