Ventana software support forum

Yeah, I'm not getting Vensim to quit/close at the end of my script, so I think MENU>EXIT is not working.

Quick aside: Is there a way to comment a line in a CMD file? I tried # but that gave an error. I don't see any comments in the examples.

Ah, that is definitely a different way at calling the script. I shouldn't use the "open -a..." command from Terminal. Just call the Vensim binary directly with "/Applications/VensimDSS.app/Contents/MacOS/VensimDSS". I got my first script to work now. Please update the documentati...

I can't get a command script to work on macOS 14.4.1 with VensimDSS 10.1.2. [code] SPECIAL>NOINTERACTION #SPECIAL>LOADMODEL|model.mdl MENU>VDF2XLSX|BAU.vdfx|BAU.xlsx|SaveListForGraphs.lst MENU>EXIT [/code] The command script, the MDL, LST, and VDFX are all in the same directory. I've made sure there...

Admin – Does Vensim run on Big Sur version 11.x still? I remember another thread where some people where having trouble with older version of macOS. Maybe Nicole should also consider updating macOS?

But the hidden file is the first thing to check...

Also, a great way to put Vensim models on the web is SDEverywhere (sdeverywhere.org). An open source project that is used by several big models, including En-ROADS (www.En-ROADS.org).

SDE has been developed and used for approx 8 years. Tested and still under development.

@nicole - what model of MacBook Air do you have?

@mallari - thanks. Since your computer is pretty recent, I would suggest upgrading your version of macOS. Many developers support the current version (now 14) and maybe the previous two (12, 13). Ventana is doing a good job finding a solution for you, but you might start running into other software ...

@mallari_cristina I'm glad it works now. What computer are you using? Could you tell us the model, year, and processor CPU?

This makes sense. Thanks for the explanation. If I can be helpful in thinking through the UI/UX, let me know.

I understand the admin's point of view, but I'll try to represent a new user's perspective. Vensim is a very complex and daunting tool. Decimals create a cognitive load (for anyone) and scare students (and sometimes modelers). If Vensim can help a user by only displaying complexity and precision whe...

Robbie – this might not help you given how far along you are, but SDEverywhere includes performance measurement as part of its quality control tools. One way this has been used is to compare the performance of one version of the model with another. Sometimes this helps catch performance degradation ...

Huh, I don't remember this level of precision in previous version of Vensim (e.g., v8). I would suggest limiting this since it isn't helpful for the user and is particularly weird when time is years, like this: [attachment=0]Screenshot 2023-10-31 at 3.29.56 PM.png[/attachment] Seems like it should b...

I don't remember this before, but it seems you can't have integer values for a model's INITIAL TIME or FINAL TIME. Or, at least, the formatters for the Model Settings window don't let you. I've tried removing the extraneous zeros but they always come back. Several models, not just one. Vensim 10.1, ...

There should be a keyboard shortcut for "Save As..." in the File menu. On macOS, most document-based applications use cmd-shift-S for the shortcut, which currently isn't used by Vensim. I recommend this. I needed to save a copy of a model and did the expected keyboard shortcut and it didn'...

Any confirmation that you see this issue on macOS?

Restating what I stated above for clarity: If a modeler wanted every RANDOM-based function in a model to be independent of all of the others (not drawing from the same pool), then the functions should be called with different STREAM_IDS (https://www.vensim.com/documentation/stream_id.html). Someone ...

Interesting, some of that makes sense given my understanding of how RANDOM is working in Vensim. * The generator, for a particular "Stream", should generate the same values in the same order. * if you create a new variable that calls RANDOM() and additional time, that will use another valu...

So if someone renames variables or reorders views (or whatever might cause the "everything else" equations to reorder), the results of the RANDOM() function would change? I read Tom's comment above that they would be more deterministic and always ordered the same. For instance, a model has...

Reflecting on this a bit more... Again I'm grateful for your reply. Prevented a lot of headaches, I'm sure. I'm wondering how hard it would be to decipher or lookup Vensim's equation sorting. I'm not 100%, but I think the only rules SDE would need are the RANDOM-related rules. It seems like SDE woul...

Yes, I'm on macOS.

Kinda related, but did custom Sketch Toolbars go away in the New UI? I only see Analysis Toolset in the Tools menu.

In prior versions of Vensim, there have been the keyboard shortcuts to select sketch tools or analysis tools. Sketch tools are 1,2,3,4,...q,w,e,... and analysis tools were control-1,2,3,4,...,q,w,e,... I can select sketch tools with shortcuts still (though less consistently than before) but I can't ...

I'm glad I asked this before starting the journey! The equation ordering, and hence the order of rand() calls, seems like the most troublesome issue. SDE unrolls the the model equations, but probably in a way that is different than Vensim's implementation –– if only because there wasn't consideratio...

I'm looking into adding the RANDOM suite of functions to SDEverywhere.org. This would support converting vensim models that use those functions to the web more readily, along with targeting C and other platforms. From the [url=https://www.vensim.com/documentation/noise_rng.html]Vensim documentation[...

Okay – that makes sense since the XMILE spec has "vendor-specific tags". Stella will have tags and Vensim could have tags for Vensim-only features too. Hopefully those extra tags are handled gracefully when being read by other applications –– that is the real key I would think. Import what...