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...
Search found 137 matches
- Fri Jan 05, 2024 5:26 pm
- Forum: Vensim
- Topic: Unable to open Vensim
- Replies: 7
- Views: 7901
- Wed Jan 03, 2024 6:28 pm
- Forum: Vensim
- Topic: impossible to switch back to the old gui a model built with the new guide
- Replies: 19
- Views: 14042
Re: impossible to switch back to the old gui a model built with the new guide
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.
SDE has been developed and used for approx 8 years. Tested and still under development.
- Sun Dec 24, 2023 8:11 pm
- Forum: Vensim
- Topic: Unable to open Vensim
- Replies: 7
- Views: 7901
Re: Unable to open Vensim
@nicole - what model of MacBook Air do you have?
- Thu Nov 16, 2023 4:02 pm
- Forum: Vensim
- Topic: Vensim PLE 10.1.2 crashing under macOS
- Replies: 19
- Views: 8648
Re: Vensim PLE 10.1.2 crashing under macOS
@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 ...
- Wed Nov 15, 2023 7:19 pm
- Forum: Vensim
- Topic: Vensim PLE 10.1.2 crashing under macOS
- Replies: 19
- Views: 8648
Re: Vensim PLE 10.1.2 crashing under macOS
@mallari_cristina I'm glad it works now. What computer are you using? Could you tell us the model, year, and processor CPU?
- Thu Nov 02, 2023 11:58 pm
- Forum: Vensim
- Topic: Bug: Very precise time settings for model
- Replies: 7
- Views: 5164
Re: Bug: Very precise time settings for model
This makes sense. Thanks for the explanation. If I can be helpful in thinking through the UI/UX, let me know.
- Thu Nov 02, 2023 8:32 pm
- Forum: Vensim
- Topic: Bug: Very precise time settings for model
- Replies: 7
- Views: 5164
Re: Bug: Very precise time settings for model
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...
- Thu Nov 02, 2023 8:25 pm
- Forum: Vensim
- Topic: Vensim Equation Auditing?
- Replies: 5
- Views: 1923
Re: Vensim Equation Auditing?
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 ...
- Tue Oct 31, 2023 7:35 pm
- Forum: Vensim
- Topic: Bug: Very precise time settings for model
- Replies: 7
- Views: 5164
Re: Bug: Very precise time settings for model
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...
- Tue Oct 31, 2023 4:54 pm
- Forum: Vensim
- Topic: Bug: Very precise time settings for model
- Replies: 7
- Views: 5164
Bug: Very precise time settings for model
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, ...
- Tue Oct 31, 2023 4:38 pm
- Forum: Vensim
- Topic: feat: Add keyboard shortcut for Save As
- Replies: 1
- Views: 1183
feat: Add keyboard shortcut for Save As
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'...
- Tue Oct 31, 2023 4:35 pm
- Forum: Vensim
- Topic: BUG? Control-<number> not select analysis tool
- Replies: 4
- Views: 2114
Re: BUG? Control-<number> not select analysis tool
Any confirmation that you see this issue on macOS?
- Mon Oct 30, 2023 8:07 pm
- Forum: Vensim
- Topic: Random number generator; any tips to replicate?
- Replies: 15
- Views: 10467
Re: Random number generator; any tips to replicate?
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 ...
- Mon Oct 30, 2023 6:31 pm
- Forum: Vensim
- Topic: Random number generator; any tips to replicate?
- Replies: 15
- Views: 10467
Re: Random number generator; any tips to replicate?
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...
- Mon Oct 30, 2023 1:16 pm
- Forum: Vensim
- Topic: Random number generator; any tips to replicate?
- Replies: 15
- Views: 10467
Re: Random number generator; any tips to replicate?
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...
- Fri Oct 27, 2023 8:49 pm
- Forum: Vensim
- Topic: Random number generator; any tips to replicate?
- Replies: 15
- Views: 10467
Re: Random number generator; any tips to replicate?
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...
- Fri Oct 27, 2023 8:41 pm
- Forum: Vensim
- Topic: BUG? Control-<number> not select analysis tool
- Replies: 4
- Views: 2114
Re: BUG? Control-<number> not select analysis tool
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.
Kinda related, but did custom Sketch Toolbars go away in the New UI? I only see Analysis Toolset in the Tools menu.
- Fri Oct 27, 2023 7:38 pm
- Forum: Vensim
- Topic: BUG? Control-<number> not select analysis tool
- Replies: 4
- Views: 2114
BUG? Control-<number> not select analysis tool
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 ...
- Thu Oct 26, 2023 2:58 pm
- Forum: Vensim
- Topic: Random number generator; any tips to replicate?
- Replies: 15
- Views: 10467
Re: Random number generator; any tips to replicate?
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...
- Thu Oct 26, 2023 2:00 pm
- Forum: Vensim
- Topic: Random number generator; any tips to replicate?
- Replies: 15
- Views: 10467
Random number generator; any tips to replicate?
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[...
- Wed Oct 25, 2023 7:27 pm
- Forum: Vensim
- Topic: Opening a Stella model in Vensim
- Replies: 17
- Views: 5623
Re: Opening a Stella model in Vensim
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...
- Wed Oct 25, 2023 4:17 pm
- Forum: Vensim
- Topic: Opening a Stella model in Vensim
- Replies: 17
- Views: 5623
Re: Opening a Stella model in Vensim
Do the models that failed still fail? Were they working in other applications?
I'm asking to get a sense of Vensim's XMILE support today and support in the future. If there are known issues it would be great to understand them better.
I'm asking to get a sense of Vensim's XMILE support today and support in the future. If there are known issues it would be great to understand them better.
- Tue Oct 24, 2023 6:10 pm
- Forum: Vensim
- Topic: Opening a Stella model in Vensim
- Replies: 17
- Views: 5623
Re: Opening a Stella model in Vensim
Which models did you have that failed? Do they work now? Do you want me to see if they are valid in other tools?
- Mon Oct 23, 2023 5:00 pm
- Forum: Vensim
- Topic: Opening a Stella model in Vensim
- Replies: 17
- Views: 5623
Re: Opening a Stella model in Vensim
Ventana/Admin – A pointer, in case you didn't know about this: There are GitHub repositories for sample models that try to help with reference implementations. You can find them in the test-models repo of SDX (SD Exchange, I think it stood for) https://github.com/SDXorg/ . Currently there are lots o...
- Wed Oct 18, 2023 1:50 pm
- Forum: Vensim
- Topic: Opening a Stella model in Vensim
- Replies: 17
- Views: 5623
Re: Opening a Stella model in Vensim
If Stella doesn't conform to the standard, you should tell them. Did you reach out to them when there was a problem? They have been supportive of the XMILE file format and the standards working group, so I think they would fix something. Also, several other tools use the XMILE standard and seem inte...