Ventana software support forum

It's working fine for me. Are you using an existing packaged model? Packaged models are read only (so the sketch is locked). If you are not using an existing packaged model, what happens when you click one of the sketch tools (such as "move", the tool to the right of the lock sketch button).

Can you upload the model?

Also please provide details on what operating system you are on, and the exact version of Vensim.

You can see the new/old GUIs at
viewtopic.php?t=7986

Try option (Mac) or ALT (Win) and up/down, that should do it.

You need to ask your IT to install Vensim under your own account.

Did you install Vensim using admin permissions, and using the user account you want to use Vensim with?

Please do not attach VRF files in the forum.

For the model I am running multiple scenarios with different parameter values. I am doing this manually which takes up a lot of time and is sensitive to errors. I thought the use of scripts was only available for the Pro version of Vensim, but looking at your answer I think it is also possible in D...

Start by adding units to your model. I would not bother simulating or doing anything else until your model passes this basic quality check. I can immediately see a problem (you've got a variable called month).

For the system dynamics model that I am working on, I am using the Vensim Professional license. However, I would like to start with the automatisation of runs, parameter tuning etc. Is it true that this is not possible without the Vensim DSS license? Can you explain what you mean by this? If you me...

What version of Vensim are you using? And new or old GUI?

Can you upload a sample model, as this should not happen.

What version of Vensim are you using? And new or old GUI?

Can you upload a sample model, as they should be vector graphics (they have been for some time).

Can you upload the model?

Units should be (and are) easy. If you have a level and you have cars in it, the unit should be "cars". If you have people in a population variable, the unit should be "people". If you have a rate such as birth rate, it should be people/year (or per month etc). - For auxiliary va...

I'd like to see an option in the Comment Editor that allows the text in a comment to be included in the documentation. For example, a check box "Document text" to the right of "No cause' so that when selected the comment text appears at the start of the text for a selected comment wh...

No, there is no way to automatically create the stock & flow diagram.

I've got no doubt that you can use both Vensim and Ventity to help. What you are describing sounds like a major project, it's not something that any of us could give you a few pointers to get you going.

Do you really need to export the whole file? You can use a savelist to export just the data you need.

In theory there is no maximum file size. It's going to take a lot of time though to export something that size.

From the wiki page,

Mainstream support for the Embedded Standard edition of Windows 8 ended on July 10, 2018, and extended support ended on July 11, 2023. As of August 2023, 0.35% of PCs are running Windows 8.

You should definitely move to Windows 10.

It's on the control panel (same as old GUI), to the right on the top toolbar.

I don't think Windows 8 is supported any more so it's unlikely Vensim will run on it.

You can try an older version, or even better, update to a supported operating system.

I think that's more or less the best we can do with the newer sketch style.

I'll see if we can adjust things to line up the pipes. But the curves and drop shadows don't seem to be drawn at all.

There is no equivalent. Are you having trouble with it?

You've got some very basic errors in model formulation which is why I suggested going through the tutorial. "Total surface water" should be a stock/level which increases via "Natural rainfall" and decreases via "evaporation". "Evaporation rate" is 36.9 (but th...

Try the attached, press the SyntheSim button to start the sim.