Ventana software support forum

Thanks, Tom. I agree with you about the cause of floating point error. But, it is not my main question. My question is in the bottom of this message. But let me explain a little first. Maybe, the word "cost" is not appropriate. It should be "investment." I think it is not ridicul...

Hi Admin, Thank you for your reply. In the model, "sales" is not a rate. This is the sales level for a one-month period. As you know, units do not distinguish between levels and rates. Of course, if we have a stock of "inventory" and its outflow of "sales," "sales&...

Thanks, admin.

But, I think both (small and big) models should be in equilibrium at least in the setting of current parameters.

The bigger model is here. It stops by the floating point overflow error OR runtime error. I cannot say why two errors occur in different run. When floating point overflow error occurs, Vensim display the message below. INFO: INFO: ERROR: Floating point error computing : change in sales INFO: ERROR: ...

Attached file is a part of a larger model. "real dev cost" and "target cost" are the same in the parameter setting. Therefore, "a", which is "target real ratio" minus one, should keep zero. However, it has very small positive number. In this model, it's OK. Ho...

Hi Tom,
Thanks so much!
I succeeded in it.

Hi there,
I would like to specify the maximum and minimum of the vertical axis of sensitivity graphs.
Could anyone give me how to set it?
In my case, Sensitivity Graph's default setting is that maximum is 500, but I would like to set it to 500.
Thanks in advance.

Hi Tom and admin, Thanks for pointing the reference manual page, Tom. I, of course, read it, and believe you are right. The model include Delay functions so that it would affect it. Anyway, I feel easy to receive your comment. Unfortunately, the model is not mine so that I cannot upload it. Best, Yu...

Hi all, I'm running sensitivity run on version 7.2. After do it, the software displays a warning, saying "ACTIVE INITIAL difference found." It indicate an auxiliary variable, but its definition is simply RANDOM NORMAL. And, I ddon't use ACTIVE INITIAL function in my model. Can I have the m...

I see. Thanks for the information.

Hi there, I'm using Vensim 7.2 Pro, and trying to export the simulation results of sensitivity simulation. The window of "Sensitivity run export" has a check box of "export percentiles" at the bottom. I expected the output file contains percentile information by checking this box...