Search found 4568 matches

by Administrator
Tue Feb 06, 2024 7:52 am
Forum: Vensim
Topic: Reinstall Vensim (error 977).
Replies: 5
Views: 559

Re: Reinstall Vensim (error 977).

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.
by Administrator
Mon Feb 05, 2024 7:56 am
Forum: Vensim
Topic: Vensim training
Replies: 3
Views: 485

Re: Vensim training

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...
by Administrator
Fri Feb 02, 2024 8:21 am
Forum: Vensim
Topic: Can the Vensim PLE version achieve seasonal forecasting?
Replies: 2
Views: 529

Re: Can the Vensim PLE version achieve seasonal forecasting?

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).
by Administrator
Thu Feb 01, 2024 3:07 pm
Forum: Vensim
Topic: Vensim training
Replies: 3
Views: 485

Re: Vensim training

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...
by Administrator
Thu Feb 01, 2024 12:25 pm
Forum: Vensim
Topic: Export as SVG not workingn correctly for new sketch style
Replies: 3
Views: 939

Re: Export as SVG not workingn correctly for new sketch style

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

Can you upload a sample model, as this should not happen.
by Administrator
Thu Feb 01, 2024 12:24 pm
Forum: Vensim
Topic: Feature request: make loop polarity direction indicator vector graphics
Replies: 4
Views: 449

Re: Feature request: make loop polarity direction indicator vector graphics

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).
by Administrator
Thu Feb 01, 2024 8:58 am
Forum: Vensim
Topic: Units tips or laws
Replies: 7
Views: 726

Re: Units tips or laws

Can you upload the model?
by Administrator
Wed Jan 31, 2024 1:13 pm
Forum: Vensim
Topic: Units tips or laws
Replies: 7
Views: 726

Re: Units tips or laws

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...
by Administrator
Mon Jan 29, 2024 7:36 pm
Forum: Vensim
Topic: What improvements would you like to see in Vensim?
Replies: 150
Views: 11185984

Re: What improvements would you like to see in Vensim?

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...
by Administrator
Sat Jan 27, 2024 4:30 pm
Forum: System Dynamics Discussion
Topic: change causal loop into stock-flow automatically
Replies: 1
Views: 567

Re: change causal loop into stock-flow automatically

No, there is no way to automatically create the stock & flow diagram.
by Administrator
Fri Jan 26, 2024 4:44 pm
Forum: System Dynamics Discussion
Topic: Utilizing Ventana Systems Tools for enhancing data breach protection strategies ?
Replies: 3
Views: 936

Re: Utilizing Ventana Systems Tools for enhancing data breach protection strategies ?

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.
by Administrator
Thu Jan 25, 2024 4:21 pm
Forum: Vensim
Topic: Max file size
Replies: 5
Views: 1067

Re: Max file size

Do you really need to export the whole file? You can use a savelist to export just the data you need.
by Administrator
Thu Jan 25, 2024 8:12 am
Forum: Vensim
Topic: Max file size
Replies: 5
Views: 1067

Re: Max file size

In theory there is no maximum file size. It's going to take a lot of time though to export something that size.
by Administrator
Mon Jan 22, 2024 11:39 am
Forum: Vensim
Topic: Cannot run Vensim after install
Replies: 4
Views: 864

Re: Cannot run Vensim after install

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.
by Administrator
Mon Jan 22, 2024 11:13 am
Forum: Vensim
Topic: Custom graphs in the new GUI.
Replies: 1
Views: 696

Re: Custom graphs in the new GUI.

It's on the control panel (same as old GUI), to the right on the top toolbar.
by Administrator
Mon Jan 22, 2024 11:01 am
Forum: Vensim
Topic: Cannot run Vensim after install
Replies: 4
Views: 864

Re: Cannot run Vensim after install

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.
by Administrator
Thu Jan 18, 2024 6:35 pm
Forum: Vensim
Topic: Export as SVG not workingn correctly for new sketch style
Replies: 3
Views: 939

Re: Export as SVG not workingn correctly for new sketch style

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.
by Administrator
Tue Jan 16, 2024 3:19 pm
Forum: Vensim
Topic: Command Script on macOS
Replies: 1
Views: 1053

Re: Command Script on macOS

There is no equivalent. Are you having trouble with it?
by Administrator
Tue Jan 16, 2024 8:12 am
Forum: Vensim
Topic: Unable to converge simultaneous loop
Replies: 5
Views: 1898

Re: Unable to converge simultaneous loop

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...
by Administrator
Mon Jan 15, 2024 1:21 pm
Forum: Vensim
Topic: about a simple use of the new GUI
Replies: 2
Views: 1666

Re: about a simple use of the new GUI

Try the attached, press the SyntheSim button to start the sim.
by Administrator
Mon Jan 15, 2024 1:09 pm
Forum: Vensim
Topic: Unable to converge simultaneous loop
Replies: 5
Views: 1898

Re: Unable to converge simultaneous loop

Have you been through any of the Vensim tutorials? I would start with the PLE tutorial at the following page,
http://www.public.asu.edu/~kirkwood/sysdyn/SDRes.htm

This will get you to the point where you can build a basic model. Once you've done this, I'd start again.
by Administrator
Sat Jan 13, 2024 12:26 pm
Forum: Vensim
Topic: How to publish a model using DLLs?
Replies: 3
Views: 1851

Re: How to publish a model using DLLs?

Sorry, I misunderstood your first mesage.

No, you cannot do this via the DLL. The DLL will only open published models, so there is no way to get the MDL file into the DLL in order to publish it. You need to run these commands in Vensim via a command script.
by Administrator
Sat Jan 13, 2024 9:36 am
Forum: Vensim
Topic: Unable to converge simultaneous loop
Replies: 5
Views: 1898

Re: Unable to converge simultaneous loop

You'll need to upload your model for us to be able to help.

It's rare that you even need to use this function, my guess is you have some sort of formulation problem.
by Administrator
Fri Jan 12, 2024 9:28 am
Forum: Vensim
Topic: Vensim macOS New Model/Window [Bug?]
Replies: 2
Views: 6484

Re: Vensim macOS New Model/Window [Bug?]

Yes, we are aware. There are much bigger problems with the Mac at the moment due to the latest Xcode/SDK.
by Administrator
Fri Jan 12, 2024 9:27 am
Forum: Vensim
Topic: How to publish a model using DLLs?
Replies: 3
Views: 1851

Re: How to publish a model using DLLs?

You'll need to set up a form for publishing, and then us that when calling
FILE>PUBLISH|frmfile

https://www.vensim.com/documentation/25033.html