"set accuracy =1 on classes with no samples" *may* not be correct

[raffaello-camoriano]

I might be wrong, but this line doesn't seem to be setting the right elements of perClass to 1.

GURLS/gurls++/include/gurls++/macroavg.h

Line 312 in d9d0d31

set(perClass+perClass_length, (T)1.0, totClasses-perClass_length);

I suggest to do:

        if (*den == 0.0)
        {
            // Set accuracy =1 on classes with no sampless
            perClass[i] = (T)1.0;
        }
        else
        {
            perClass[i] = ((T)(*num))/((*den) + std::numeric_limits<T>::epsilon());
        }