Ventana software support forum

I discovered Vensim was in offline mode. Fixed that and everything seems fine now.

Attached is on of the models.

I am receiving the above error when opening the equation editor / using the set subscripts for a variable. My subscript control is not displaying any subscripts even though it worked up to now. I am using DSS 6.4c. When I view the model as text, I can find the "equations" that define the s...

Some variable names were preceded by an '. After cleaning the offending characters the import proceeded without a problem.
Thanks

Hi
I am using Vensim DSS for windows version 6.4c (x32)
I am lately getting this error when I try to import a dataset from an excel file.
It worked previously on the excel file, but is now causing Vensim to crash.

Any assistance would be appreciated.

Regards

RiaanJ

Administrator wrote:It working fine for me. There may be a problem with your payoff file (which is why I asked if you can upload or send anything to us).

I tried the electric sample model as described in the documentation, with exactly the same result (crash before optimize dialog opens). Maybe it is not model related?

Are you running the latest 6.4e? Are you doing stochastic optimization? (There's a known bug that's fixed in the forthcoming release.) Does it crash before the simulation control dialog comes up, or when you simulate? The About Vensim dialog states version 6.4 Vensim crashes before the Optimize dia...

It crashes before the dialog opens.

I am using DSS 6.4. I need to optimize some constants of a model I am working on. However, when I launch the optimizer, the error message above pops up with the message "A problem caused the program to stop working correctly...." Has anyone else experienced the same "problem"? Ho...

Thanks. :lol: It works for the test, still need to test for the actual quarterly model. It solves the display of graphs in Vensim. Seemingly my expectations for Vensim's ability to seemlessly handle quarterly data was optimistic :? Is this a better approach than to use the number of quarters i.e. ti...

Lets try again

I attached the very simple model I'm using to test, the vdf files,the excel spreadsheet.

The main problem is that graphs are not displaying correctly, x-axis from 0 to 20251
The custom graph added to the model shows more than 4 quarters, i,e, 20076

I am busy with a data driven quarterly model. The inputs to the model is from other models and processes and are recorded either as yyyyqq where qq is q1 to q4 or yyyymm where mm are 03, 06,09 or 12. I would like to create the data vdf from the excel file (which is dynamically updated) or read from ...

I have bought the book : Modelling Dynamic Economic Systems by Ruth and Hannon. The models in the book are Stella models which I have downloaded. I am working through the book and converting (trying to ) to Vensim models. Although similar concepts are used in both language the implementation tend to...