Ventana software support forum

Hi Tom,

Sometimes the optimization result comes with a star (*) ahead of a parameter being optimized. Something like the following:

Maximum payoff found at:
*Inventory of products = 5e+007

What does the star (*) mean? I remember there are some old posts in which people asked the same question, however I have tried to search those posts but failed to locate them. Vensim Help seems to not explain it, despite that the examples of optimization show star signs, too. (Maybe there is some explanation but I could not find it).

Many thanks for your time.

I think it just indicates that the value changed on the last pass through the parameters.

Hi Tom, thanks, however I cannot understand what you meant by "value changed on the last pass through the parameters". Please could you elaborate a bit further? Many thanks.

The optimizer makes multiple passes through the vector of parameters (or later, of general search directions). I think the * indicates improvement was found.