Ventana software support forum

Hi Tom, Thank you very much for your email. I still have a few questions though :/ 1) venVarOffset[0] = vensim_get_varoff("VensimVariable[ID1]") or venVarOffset[0] = vensim_get_varoff("VensimVariable[ID2]") etc. always give me venVarOffset[0] = 779. I guess I still don't understa...

Hi, Thank you for your response. I have tried the following: resultVenVar = vensim_get_varoff("VensimVariable[ID]") MsgBox (resultVenVar) The message box shows "779". I'm trying to understand the meaning of that number. Does it mean that I have 780 terms in this array? Also is th...

Hi, Thank you for your response. I have tried the following: resultVenVar = vensim_get_varoff("VensimVariable[ID]") MsgBox (resultVenVar) The message box shows "779". I'm trying to understand the meaning of that number. Does it mean that I have 780 terms in this array? Also is th...

Hi, I'm trying to retrieve an array from Vensim to Excel. I can retrieve single values in Excel using: 'result = vensim_get_data("game.vdf", "VensimVariable", "Time", rval(1), tval(1), TIMEVensimVensim) 'For i = 1 To result 'Sheet5.Range("A3").Offset(i, 0) = t...

That makes sense. Thank you very much for your help!

Hi Tony, It still doesn't work on my end... It keeps pulling the value that is in the model (20), not the one I'm trying to pass (3). Also, how do you know how many times you need to move the game forward, in other words, why do you need so many GAME>GAMEON? Thank you very much for your help, Olivia

Hi,
Were you able to identify where the problem might coming from? I'm still unsuccessful at passing a value to a gaming variable from Excel... :/
Thank you,
Olivia

Here it is! Thank you very much for your help!

1. Yes, ludo is a gaming variable

2. It doesn't work ludo keeps the initial value I gave it in the model (20)

Good evening, I have a very simple model that I'm trying to run from Excel. I can get the values of the variables from Vensim to Excel without any problem but for some reason I cannot pass a new value to a Vensim variable from Excel. The variable is defined in Vensim as a Gaming variable. Here is th...

Hi,
I cannot find these files or any .tab files for that matter. The only files created are .lst, .vdf, and .vsc
Am I doing anything wrong or missing something? I can see the confidence bounds when I click on the variables of interest but that's it.
Olivia

Good evening, I was wondering if screening tests could be conducted in Vensim. I've run a sensitivity testing as illustrated in the user manual but I would be interested in knowing for each variable I select, what other variables have the strongest impact on its variability. Can I conduct such analy...

Yes it works I set 'Number of arriving aircraft' as CONSTANT.
Thank you very much,
Olivia

Good evening, I would like to run the same model under a different set of initial variables. I have a variable 'Number of arriving aircraft' of Type Level-Normal. Its equation is INTEG(Annual traffic increase) and its initial value is a gaming variable called 'Initial Number of arriving aircraft'. I...

The reason I wanted to be able to pass 'RANDOM UNIFORM (10, 50, 0)' directly is because I have different distributions stored in a database for different variables and for different time intervals, and I was thinking that just passing the result of my sql query directly into SIMULATE>SETVAL would be...

Hi, I'm not passing a function per se, I'm passing a string that corresponds to the way Vensim defines a random uniform distribution. In other words, instead of having growth rate (my gaming variable) equal to 3, I want growth rate to be equal to RANDOM UNIFORM (10, 50, 0). And I want to do that fro...

Good afternoon, I can successfully pass a value to a variable using Matlab but somehow I'm having a hard time passing a function (like RANDOM UNIFORM). I tried this (see below), and other things but i can't get it to work. Could somebody help me? GR = 'RANDOM UNIFORM (10, 20, 0)'; %GR is a GAMING va...

I managed to get my code to run the way I wanted. However I would still be interested in hearing your opinion about the use of GAME>GAMEON vs vensim_continue_simulation, etc.
Thank you very much!
Kind regards,
Olivia

Yes, Growth rate is a gaming parameter. In the model, it is defined as Auxiliary -> Gaming. Growth rate = GAME(30). however I want to be able to change that value at different time intervals (year) using Matlab.

Good afternoon, I'm trying to run games from matlab and I'm a little bit confused as to the right function to call and the difference between them... The Vensim DSS Reference Supplement gives examples (p110 and 111 using VB) with GAME>GAMEINTERVAL, GAME>GAMEON, vensim_continue_simulation, vensim_sta...

Great! Thank you very much!
Kind regards,
Olivia

Hi, I have just seen your last post about loading a Vensim model into Matlab. I'm currently trying to achieve the same thing and noted your comment about the change in input arguments. I'm new to Vensim and have no experience using Matlab to interact with other applications. However, for my current ...