trouble recreating vensim models in ventity

A place for Ventity software questions & answers
Benjamin Sprecher
Junior Member
Posts: 7
Joined: Tue May 02, 2017 5:42 pm
Vensim version: Ventity

trouble recreating vensim models in ventity

Postby Benjamin Sprecher » Wed Aug 09, 2017 4:35 pm

Hi,

I recently built a vensim model to explore base-metal and companion metal production. This seemed like a perfect model to translate to ventity, because there are a bunch of companion metal mines that have a identical structure but differ in a couple of co-production fraction parameters. I attached the model in this post.

I'm immediately running into trouble because I can't recreate the GDP growth loop (lower left corner of the vensim model). Is there a reason why I can't have auxiliaries influence stocks, and how would you recommend building this type of model in Ventity?

Kind regards,
Benjamin
Attachments
Zinc model - MW.mdl
(19.05 KiB) Downloaded 6 times

tomfid
Administrator
Posts: 1938
Joined: Wed May 24, 2006 4:54 am
Location: Montana, USA
Contact:

Re: trouble recreating vensim models in ventity

Postby tomfid » Thu Aug 10, 2017 5:23 pm

Ventity is a little stricter about stock-flow methodology. But if you make GDP Addition into a flow, this should be doable.
/*
Advice to posters (it really helps us to help you)
viewtopic.php?f=2&t=4391

Blog: http://blog.metasd.com
Model library: http://models.metasd.com
Bookmarks: http://delicious.com/tomfid/SystemDynamics

*/


Return to “Ventity”

Who is online

Users browsing this forum: No registered users and 1 guest