Ventana software support forum

Thanks a lot. I used to have a similar white-text-on-white-background problem in log windows (warning/error messages as well), but that problem seems to have sorted itself now. There I now get black font on a dark grey background, which is not ideal in terms of contrast but still legible. (See scree...

Hi, I was wondering if I can re-open this issue. It is true that if I switch to Dark mode sketch, this issue is resolved, as I wrote above. But I'm used to working in Vensim in light mode which offers better overall visibility, even though I have my MacOS Appearance set to dark mode. I don't see any...

Thanks. I wasn't aware of the option to switch the sketch to dark mode. That seems to have solved the problem.

Hi,

I just wanted to report a bug with the appearance of fonts in Vensim graphs or log windows under MacOS Dark Mode where the text is often invisible due to being white on a white background. Please see attachment for example.

Thanks in advance for fixing this in future updates.

Thanks for your quick response.

Hi,

I know there is a Loops button to find feedback loops going through a single variable.

But is it possible to find all unique feedback loops that exist in a model, going through all variables but counting each loop only once?

Thanks,
Kaveh.

Thanks!

Thanks. The reason I ask is when in Dark mode, my units check log window appears blank. The actual errors are only revealed when I select the 'invisible' text (white font on white background).
Perhaps this is something that can be addressed in future updates?
Thanks.

Hi,

I am running MacOS Sonoma 14.6.1 in dark mode. I think Vensim automatically starts in dark mode because my Mac is set to dark mode.

Is there a way to switch Vensim to Light mode? I can't find it in Preferences.

Many thanks,
Kaveh.

Thank you very much for looking into this!

Thanks for this. I'm not sure if that explains the issue I've reported, though. The 32-rule does not explain why the number of reported loops would go down from 640 to 10 by adding one link. Also, the loop I gave as an example, for instance, which is not reported in v2 has a length of only 7. Many m...

One example that is reported in v1 but not in v2 (while it exists in both): Loop Number 8 of length 7 Real House Prices real average deposit average deposit to income ratio relative average deposit to income ratio number of new mortgage advances per year real new mortgage advances growth in real new...

Thanks for your reply.

I did compare the loops and it looks like the version 2 model is no longer reporting the vast majority of loops. Any idea why this might be the case?

Thanks for your help.

Hello, I was wondering whether there are any known bugs related to the Loops counter feature in Vensim (I'm using Vensim Professional for Windows Version 6.3D (x32)). The reason I ask has to do with the two models attached. The two models are identical, except for one link. In version 2, I have adde...

@Tom Fiddaman: I was just wondering if you have 5 minutes to kindly look at this question and share any thoughts you might have on it, or else any good sources you might know of which talk about interpreting results of sensitivity tests with respect to feedback structure, and whether growing bounds ...

Thanks. It makes sense. Yes, in my work it also seems that the bounds widen where reinforcing loops are dominant and then shrink again when balancing loops become dominant. I wonder whether this is generally the case, or whether there is a paper on interpreting Monte Carlo sensitivity results within...

Question for Tom/Colleagues: (Apologies as this is technically not a Vensim question but rather on the theoretical side and also admittedly a quite broad question.) In visualising results of sensitivity tests, the range of the confidence bounds usually grows over time. This is also seen in the coupl...

Thank you Tom! That's helpful.

Thanks Tom. Sorry for the obvious question but in which environment would I run this command? Would it be Terminal on a Mac or the Command Prompt in Windows?

Thanks. I managed to get a decent sensitivity graph with custom axis ranges via editing a .vgd file in text.

Sorry, if I can just follow up on that, I think I might need to export results to Excel to be able to customize my chart.

Is there a way to export or obtain only the few confidence bound curves, rather than all the hundreds of runs?

Thanks again.

Thanks!

Hi,

Quick question: Is there a way of manually setting the upper limit of a sensitivity graph? I'm aware that you can right-click and drag on the graph to choose an arbitrary range, but this visual method is never precise.

Many thanks,
Kaveh.

Yes, I figured that as well.

Thanks Tom!

I see. Many thanks for your prompt response!