sensitivity graphs

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neelu@nitw.ac.in
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Vensim version: DSS

sensitivity graphs

Post by neelu@nitw.ac.in »

what is the meaning of the colours with some percentage in the sensitivity graphs.
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Re: sensitivity graphs

Post by Administrator »

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neelu@nitw.ac.in
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Posts: 23
Joined: Thu Mar 22, 2018 9:56 am
Vensim version: DSS

Re: sensitivity graphs

Post by neelu@nitw.ac.in »

Please explain me what is the colour indicating in the attached sensitivity graph
I am not able to analyse this graph can any one explain to me
ash color reduced from 20000 to 10000 and became straight and also that appears at 0
Attachments
senstivity graphs.jpg
senstivity graphs.jpg (43.03 KiB) Viewed 4673 times
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Re: sensitivity graphs

Post by Administrator »

When doing a sensitivity run, Vensim will run the model lots of times and change the parameters. What this graph shows is that of all the runs, 50% of them were within the yellow section, 75% within the green, 90% within the blue and 100% within the grey.
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neelu@nitw.ac.in
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Posts: 23
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Vensim version: DSS

Re: sensitivity graphs

Post by neelu@nitw.ac.in »

thank you very much for your valuable information.
how can I get the statistical data from the sensitivity graphs?
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Re: sensitivity graphs

Post by Administrator »

It depends what stats you want.

Open the Vensim help and search for "Stats". If this gives you what you want then great. If not, search the help for "Export" and you can get the data into Excel to calculate the stats manually.
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bahri
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Re: sensitivity graphs

Post by bahri »

I attach a sensitivity graph.
What is the red line tells us?
Attachments
sensitivity_graph_submitted.jpg
sensitivity_graph_submitted.jpg (250.72 KiB) Viewed 4633 times
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Re: sensitivity graphs

Post by Administrator »

You will need to upload the model and associated files if you need help with this.
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bahri
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Vensim version: DSS

Re: sensitivity graphs

Post by bahri »

Hi,

I believe the red line shows an output based on parameters before I started sensitivity analysis.
Is that correct?

How do I export all values 50%, 75% and so on output values?

I can export a sensitivity graph but not any values.
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Re: sensitivity graphs

Post by Administrator »

Search the help for "Export" and you can get the data into Excel to calculate what you need manually.
Advice to posters seeking help (it really helps us to help you)
http://www.ventanasystems.co.uk/forum/v ... f=2&t=4391

Units are important!
http://www.bbc.co.uk/news/magazine-27509559
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