Ventana software support forum

Excellent ! thanks

Excuse me, I think I expressed bad my need. I would like to have the result in number of my key variables at the end of the simulations with the values of the parameters. I mean, if I test the sensibility of a parameter a between 0.1 and 0.2, with a random uniform distribution, I would like to have ...

Hi, Just to continue with the sensitivity theme, I tested some parameters and see the results on my variables in the graphs, I saved values just for my interest variables in a lst. I would like to observe the values resulting form the different parameters but I don't know how to open this list. Can ...

Ok thanks, I built these equations in my model to compare the simulated and original datas and obtain a payoff.
Thanks
Claudia

I was doing something wrong, I was opening another window of Vensim and not closing the first one.
It's ok now,
Grate , thanks you very much
claudia

I would like to know if it's possible to copy an external model structure and paste it in another model.
I don't succeed to do it with PLE version.
Thanks
Claudia

Tom, Another question, where can I find the equation relative to the the "weighted sum of squared residuals between model and data, or (for robust estimation), absolute values of residuals" to enter in my model.
Claudia

Tom ,
Thanks for you answer.
Ok for the response of the calibration, but what do you consider to be "few parameters"? I have like 6 parameters.
Just to know the optimizer is only accessible in the Professional Version ?
Thanks you.

Hi good morning I ve basic questions about calibration and I would like to know how to proceed: I'm simulating land-use change in a territory. I've the real data observed between 2000-2009 (land change maps) ans I'm doing a simulation for a period of 30 years. I just have the data of few parameters ...

I m generating data of a variable B, that dependents and is linked to the variable A. A (t) -- > B (t) With a loop, B comes back to A. B (t) --> A (t) --> B (t) At the same step t, A (t) can't use the data of B (t) , because of the time. How can I use at the Time t , the data of B that have been gen...

Very nice answer, I m very happy, it s appear functionning !

Did u resolve your problem? I need to do the same, choose a value of one variable at time=2 and keep it for the rest of the simulations. Can someone helps me? Thankx

I Try to select a value of a variable at a specific time, for example, my variable is AREA. At time = 2 , this area becomes positive (the only time it is positive, after time 2, it ll be equal to 0 again like before time =2) and I want to conserve this positive value for the rest of the simulations ...