Hi
Just noticed a curiosity. Maybe I am being thick.
Anyway, so say you have a ranking node that is ‘value’. Ranked ‘higher is better’. Say it contains some value factors like P/, P/Sales, ranked lower is better.
If I invert the direction of the factor rankings, and also invert the direction of the composite ranking, I would expect to get the same result for a simulation but I do not by a long shot.
Basically I was looking into inverting a long ranking system for a shorting system, but was not sure if to invert the factors (and not the composite), or just invert the ranking direction of the composite (and leave the factors alone). I assumed these would be identical. I also assumed if you inverted both the factors and the composite, that the result would be unchanged. But this is not the case.
i.e. combining of rankings appears not to be commutative.
Maybe there is a simple reason for this but I was just curious.