cohort with SHIFT IF TRUE

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geamaro
Junior Member
Posts: 13
Joined: Tue Oct 28, 2008 5:03 pm

cohort with SHIFT IF TRUE

Post by geamaro »

Does anybody have a model that uses cohort with SHIFT IF TRUE to be used as an example? TIA.
bob@vensim.com
Senior Member
Posts: 1107
Joined: Wed Mar 12, 2003 2:46 pm

Post by bob@vensim.com »

The attached is a relatively simple demographic model demonstrating 1 year age cohorts - also it has a population pyramid graph which is useful for looking at the evolution of age distribution. (by the way dgraph is short for demographic).
Attachments
dgraph0.mdl
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LAUJJL
Senior Member
Posts: 1427
Joined: Fri May 23, 2003 10:09 am
Vensim version: DSS

cohort with shift if true

Post by LAUJJL »

Hi Bob

I tried to see how the graph on the model joined was constructed, but it seems to be a special graph that cannot be modified or viewed using the standard building graphs tool.
How is it possible to understand the building of such a graph?
Regards.
JJ
geamaro
Junior Member
Posts: 13
Joined: Tue Oct 28, 2008 5:03 pm

Post by geamaro »

Thank you Bob for your help!
G
bob@vensim.com
Senior Member
Posts: 1107
Joined: Wed Mar 12, 2003 2:46 pm

Post by bob@vensim.com »

To look at the graph definitions use Save As from the Graphs tab of the control panel then open the .vgd file in a text editor.
LAUJJL
Senior Member
Posts: 1427
Joined: Fri May 23, 2003 10:09 am
Vensim version: DSS

programming a graph definition

Post by LAUJJL »

Hi Bob

Thank you for the information.
I did not know that is was possible to program custom graphs!
Regards.
JJ
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