Ventana software support forum

Hi guys, I have set up a batch process run from Excel to run a series of forecasts, each of which requires a previous optimization of a few parameters. I got it to work as intended, but I have a really weird problem: I once tried switching on the Kalman filter (for the optimization), and ever since ...

Hi guys, I would like to be able to run an optimization for a given time period, set parameters at their optimal values, then resume the simulation using these optimal values. I believe I know how to set up the script so that it will do everything I need, except for one thing: I don't know how to te...

Bob, Thanks a lot for your answer to my previous question - I really should have thought of that. I feel confident that I will be able to run the filter now, but I have a couple of new questions: 1) Can the measurement and driving (co)variances be variable? I tried it, and my impression was that Ven...

Hi, I am trying to understand how the Kalman filter works, and there is one thing that really puzzles me: I am looking at the example supplied with the software, and what I cannot figure out is how Vensim knows that it should try and get "Inventory" to match "Meas Inventory" - wh...