Ventana software support forum

Hi JJ

Thanks for the reply. I could Implement it.

Krishna

Hi I am trying to stop a simulation when the value of a level variable exceeds a particular number. Is this possible?

Thanks
Krishna

Bob, I think I have sorted out that. I have tried for different values for pwidth and when the value is 0, the allocations are whole. The results are below and I hope it is right. Thanks for the reply. With Ptype 1 and pwidth 4 Simulation Allocation Priority[One,ppriority] Allocation Priority[Two,pp...

Can we allocate whole (not fraction) resources to entities to address full demand in the order of priority? If yes what is the Allocation function. I am presently using allocate available function and in case there is no function to do the above, then what can we do to the result from allocate avail...

Thanks Bob. I have missed the detail in your previous mail. It is working now.

Bob, I have used tab delimited file for sensitivity analysis successfully but for this case where I am trying to change the allocation priority I am getting error and of course I have no idea how to save the allocation priority value. In normal case we have "Allocation Priority[One,pprofile]&qu...

Hi, I am trying do a sensitivity analysis using external file. So I have a text file in tab delimited with all the values of the changing variables. I have successfully done for normal auxiliary variables but I am having problems with changing priorities. I am using the allocate available function t...

Tom and JJ,

Thank you for helping me.

Krishna

Tom,

Thanks for looking you feedback on my model. I have realized that I was not looking for the sensitivity results at the right place. Anyways can we save and export the sensitivity results to an excel sheet? I can see only a graph but can we save the data and export the data?.

Thanks
Krishna

Hi JJ, My model is a process involving a couple of different organizations working towards a common goal. I have different processing rates and quality coefficients etc. for all these organizations. While I can assign a distribution to some parameters I want to assign some constant to some and see t...

Hi Tom, Firstly thanks for your correspondence. Answering your questions; My model is a complex process and it has got some 14 variables to vary and check for various combinations. The 2000 runs is a sample number there is no logic behind that, to be clear my model need to be simulated for say 5 yea...

Some more additional information regarding my model, which I feel would be helpful to you in helping me. I need to simulate the model for at least 2000 simulation runs, for each set of input values, to get the output. Please help me because it is so difficult to change the values for each simulation...

Lee,

Is Command Scripts option available for Professional version? I think it is available for only DSS. I tried but could not find any and in the manual its in the DSS help tab.

Thanks
Krishna

Tom, I have been trying to implement the sensitive analysis, following the limited instructions in the manual using a sample model. Had no success with that. I am attaching both the delimited text file and the model. Please help me with this. Thanks [Edited on 11-12-2010 by krreddi] [Edited on 11-12...

Tom, Can you guide me a bit more on how to go about and the options to select or a tutorial for the sensitivity analysis you have advised. I do not want to mess up my model without being sure on how to go about. I could not find the from file option in the reference manual i downloaded. It would be ...

I am using the professional Version

Hi, I have built a complex model and I am trying to simulate it. Everything is fine but I need to simulate the model for a large number of values of different variables. I was wondering if there is method to simulate in a less cumbersome way (Since at present i am changing the values of each variabl...

I am unable to upload the model it says the file is too big. FYI The size of the file 350KB. For your information I am upload the screen shot of the table view of the variable.

[Edited on 7-15-2010 by krreddi]

Hi all, Thanks for the information. I have been trying to troubleshoot the error but have no clue of ts origin. FYI i have copied different independently working models to a single model. When run independently all the models are simulating with no errors and sensible results. But the assembled mode...

FYI I have made a couple of independent models and then have copied and pasted each of these models in a single model (which I call the assembled model). I don't get this error when I run the models separately, but when I run the assembled model I get this error.

Thanks
Krishna

I am trying to build molecules with no luck. Previously I was told to save a model in the molecules folder and use the tool bar to add it as molecule to Vensim. But I am unable to save my model in the molecules folder in the Vensim installation folder. Can anyone guide me in creating and using molec...

"Floating Point overflow saving to time 0.000000"

I am getting this error when allocating resources using allocation by priority function. Can anyone give insights about this error?.

Thanks
Krishna

Hi, I am planning to model a machine and have its performance graph which I want to use in the model. Is it possible to import the graph into vensim and based upon the X value can Vensim pick the corresponding Y value and use it in calculations?. Questions are welcome. I appreciate all your support ...

Thanks for the information.

Krishna

I am not confident of the molecules concept. But want to know about some basic capabilities. Can we create molecules and use them in our models? If yes please suggest the corresponding documentation.

Thanks
Krishna