Maxixmum number of active parameters in Sensitivity Analysis

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bgencer1
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Maxixmum number of active parameters in Sensitivity Analysis

Post by bgencer1 »

Hello,

What is the maximum number of active parameters in a Sensitivity Analysis?

I have a model that runs for 40 years and each year the model decides on investments. I would like do a sensitivity analysis on this decision, which makes 40 variables, but when I run it Vensim gives me an empty dataset. What should I do?

Thank you for your help.
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Re: Maxixmum number of active parameters in Sensitivity Analysis

Post by Administrator »

Have you specified (and populated) a save list?
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bgencer1
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Re: Maxixmum number of active parameters in Sensitivity Analysis

Post by bgencer1 »

Yes, I have 8 variables in my Savelist.
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Re: Maxixmum number of active parameters in Sensitivity Analysis

Post by Administrator »

Can you upload all files needed to re-create the problem?
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tomfid
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Re: Maxixmum number of active parameters in Sensitivity Analysis

Post by tomfid »

There is no hard limit. 40 variables is small, so the problem must be something else.

How do you know the dataset is empty? What happens if you export the .vdf?
bgencer1
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Re: Maxixmum number of active parameters in Sensitivity Analysis

Post by bgencer1 »

Hello,

Attached you can find the files that I use. I can send you also my model if necessary.

Thank you
Attachments
result.lst
(163 Bytes) Downloaded 452 times
EXP_V11_sensi_0410.vdf
(38.03 KiB) Downloaded 486 times
EXP_V9_sensi.vsc
(397 Bytes) Downloaded 448 times
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Re: Maxixmum number of active parameters in Sensitivity Analysis

Post by Administrator »

We'd need all the files needed to re-create the VDF (so model and any data required for it).
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bgencer1
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Re: Maxixmum number of active parameters in Sensitivity Analysis

Post by bgencer1 »

I sent them to vensim@vensim.com
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Re: Maxixmum number of active parameters in Sensitivity Analysis

Post by Administrator »

What makes you say the dataset is empty? I've just run the model in sensitivity mode using the files you supplied, I don't have an empty dataset.
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bgencer1
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Re: Maxixmum number of active parameters in Sensitivity Analysis

Post by bgencer1 »

When I export vdf file this is what I get (exp_v10).
However, when I have only two active parameters with the same list of variables, I have exp_v9.
Attachments
exp_v9.xlsx
(41.42 KiB) Downloaded 464 times
exp_v10.xlsx
(7.81 KiB) Downloaded 452 times
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Re: Maxixmum number of active parameters in Sensitivity Analysis

Post by Administrator »

This is what I get when I run sensitivity and export the resulting VDF.

What options are you using to export?
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SENS.zip
(99.86 KiB) Downloaded 461 times
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tomfid
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Re: Maxixmum number of active parameters in Sensitivity Analysis

Post by tomfid »

Also, what version are you running?
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