Temporal weighting in optimization/calibration

[kaveh.dianati]

Hi,

I was wondering if there might be a way, by any chance, to give a higher weight to more recent years when using Vensim's automatic calibration, i.e. instructing Vensim to give a higher weight to discrepancies between simulation and historic data during a certain portion of the simulation period, in my case the most recent years.

Thank you in advance for your help.
Kaveh,

[tomfid]

Yes - you can either:
- calculate your objective function, including the weight, explicitly in the model
- make the weight term in the payoff file (vpd) a variable

[kaveh.dianati]

Hi Tom,

Thank you! I was not aware the weight can be a variable. That, I think, solves my problem.

Cheers,
Kaveh.