Ventana software support forum

I would attempt to have two queues as Tom suggested, one for your samples and the other for "other" samples in the lab. You would then have a single processing rate for the lab. This would need to be split between the two queues based on the age of items in the queue. Get the oldest age of...

I have attempted to quantify all variables the best I can but am getting a simultaneous error when attempting to simulate This sounds like you haven't put any delays into the system. I have a variable named "accidents" that flows into "injuries" "injuries" then flows i...

Sorry for the delay replying. This is a bug we know about and will be fixed in the upcoming release.

Am I right in saying you want the rainfall to behave like a sine wave (and not random)?

Adding units to your model is a really good idea as well.

Very short answer, no.

The Vensim DLL is 32 bit, and so can only be loaded by 32 bit apps.

An update on this. If you hide/remove "aléa horizon data" from the view, it should work ok. The bug will be fixed in the next release (it took a long time to find). That data equation has no values which was causing problems when trying to display the SyntheSim graph when override was acti...

Use vensim_get_data
http://www.vensim.com/documentation/ind ... ?26185.htm

There are a number of ways. 1. You can nest the IF THEN ELSE statements result = IF THEN ELSE ( a > 0 , b , IF THEN ELSE ( a > 0.5 , c , 0 ) ) I personally don't like nesting IF THEN ELSE statements, it makes it difficult to read and debug what is happening. 2. Add IF THEN ELSE statements result = I...

1. If I call data from excel as a lookup or import excel data to lookup, it never shows graphical presentation? the graph area is blank but it simulate fine. How can I get the graph? Can you post an example? It shows fine for me. 2. Simulating perishable goods, realistically nothing left over, ever...

Start with the Excel example that ships with Vensim (usually found in C:\Users\Public\Vensim\dll\excel97\VENDLL.XLS). This example contains code to load, set and retrieve data/constants. Then you just need the following venapp commands to run the optimization. SIMULATE>OPTPARM|<optimization control ...

Is there a way to move (locked) windows down again? Unfortunately unlike in other Windows' applications I can't see a hand-tool to move windows other than by moving the upper border but that is hidden once it has been moved upward. If I am not missing something essential this might be a feature to ...

If you right click with the mouse when you have the hand tool selected, you can pan around the view.

Can you enter your serial number on your profile please, you selected that you use DSS, but entered 0 as the serial number. 1. I have now a model of over one hundred variables in 6 different views and would like to know exactly how many variables in total as well as in each views. Is there a simple ...

Venapps can do this.

The best place to start is definitely the help system though at
http://www.vensim.com/documentation/ind ... enapps.htm

It will take you though a simple design (and what to think about when building a GUI).

Tony.

I've put in two different methods in the attached model. Will one of these do?

In the 2nd equation for Vehicles, change to

Can you upload the model in MDL format please? The VPM will not load.

Tony.

Can you post the venapp you are using? It's impossible to really advise you unless we can see what commands are being executed.

Tony.

Are you using PLE? If yes, just draw an arrow from your lookup to the variable where you need to use it.

If you read through
http://www.vensim.com/documentation/ind ... ?usr08.htm

It will show you how to create a lookup (and how to use it).

Is there a Stella forum where you can ask for help? I know there are one or two who use this forum who are familiar with Stella, but you would most likely get a much faster answer elsewhere.

Tony.

Something like

Will the PULSE TRAIN work for you?
http://www.vensim.com/documentation/ind ... _train.htm

I don't remember PLE ever being able to view as text.

Each one of the help links I gave you has an example model.