Ventana software support forum

Not sure if this is helpful for what you want to do, but I suggest looking at the differential form of that equation. dx/dt=..... That is , define the flows. Much easier. Also, I would not use "incidence" as a stock, but rather would start with uninfected plants and infected plants with a ...

I am relearning how to do custom graphs under the new interface. I found it a bit confusing with regard to labeling the axes when I create a X vs Y graph (rather than the usual Y vs time graph.) At present all i can create on the x axis is a Label with this format "Variable Name (Day)" whe...

Thanks. Also, I wasn't aware as to where the push to back option is located... found it.

Having the thicker lines is nice for emphasis. This option is available for normal model variables. Also, Has the ability to move model components "to the back" and "to the front" been lost? :( That is sometimes handy for clarity. Also, allows the highlighting of a model section ...

I like to use "comment boxes" or circles to highlight parts of my models, For example to highlight parts of a model by enclosing them in a box with a label at the bottom (see example). I have found, after updating Vensim? to 10.2.0, that sometimes moving a comment box also moves all the el...

Just for clarity. Forester used the term 'Level' in much of his work. See Industrial Dynamics (1961) and Principles of Systems (1971).

Installed DSS 10.1.4 and problem is gone. I can now name data files ..vdfx

I am using DSS 10.1.3 on Windows

I was looking through models from "The System Zoo" by Hartmut Bossel and each time I opened a model and tried to run it, Vensim correctly pointed out that the was no run name. When I click OK Vensim tries to run anyway and freezes my system... forcing me to "ctl alt del" to open ...

This is Windows 11. Printer is same as last 5 years or so, and it is turned off. Same message appears if I double click a model file with Vensim already open.

When I open Vensim I first get a small window titled "waiting for printer connection" with the message "please wait for printer connection or cancel" Eventually the window will close, and Vensim will start or I can also click cancel and Vensim will start. I am using DSS version 1...

OK Thanks. If I learn something new I will post it here.

I am using a Dell XPS 17 Laptop running Windows 11 Vensim DSS 9.3.5 x64

When I click on help it opens a window that says "vensim help" in the upper left corner. I am assuming that is on my computer. Shows as a window via the Vensim icon on the taskbar.


Does not open a browser. (my default is firefox)

I'm sure there is a simple solution, but I cannot seem to access the sample models in the user manual. When I try to do that I get an error message that says "some content of this document has been blocked for your safety." If I click Yes. Nothing happens. I suspect this has nothing to do ...

Is it possible to make good use of two monitors with Vensim. If so how. I notice that I can get graphs from the graph tool to show consistently on a second monitor, but not outputs from other output tools or custom graphs. Would be nice to show the model on one screen and custom output graphics on a...

May have to do with the fact that the older version was installed under Windows 7, I then upgraded to Windows 10 and later installed the newer version of Ventity. Program files for the older version are installed under C:\Program Files (x86)\Ventity (beta) Program files for the newer version are und...

I pined an earlier version of Ventity to the task bar and have used it off and on for a few months. More recently I installed a newer version (Build 1.0.5743.31014). If I click on the task bar to open ventity it opens the previously installed version (Build: 1.0.5678.41676). Opening from the all app...

Ventity seems to work fine with Windows 10, although I haven't used it much since I upgraded windows. (Using a 4 year old laptop computer)

I also installed the 64 bit version. The folder holding the help file is named Ventity (beta) but the program seems to be looking for a folder named Ventity. I changed the folder name and the help system works.... so far.

Yes the problem seems to be related to the font size specified. On my machine I can use Times New Roman but only if it is 10 points or smaller. Same with Comic Sans MS. And apparently with other fonts (e.g. Jokerman if smaller than 10 pts.) These actually show up a bit larger than default on my scre...

Tom: I am using a Dell E6510 with a widescreen 1920x1080 resolution. Windows 7 ultimate 64bit (Service pack 1). I find that I cannot change the equation editor font in either PLE or Professional with the following exceptions: I can change it to display Batang font up to size 14 and Arial font up to ...

I was hoping this problem would be fixed with the update to V6.0A, but I am still unable to change the font size in the PLE equation editor. The default is rather small on a high res screen.

Just wondering if there is a way I can tell the graph tool to use a larger than default Y axis maximum (and maybe a minimum too).

I find that I can trick Vensim into doing this but I'd rather just be able to make a series of graphs with the same y axis (for comparison).

Ah.... I see I already asked this question