Ventana software support forum

Hi Frank - John Sterman's book, Business Dynamics, is a classic. Additionally it comes with example models in Vensim, iThink and Powersim. It may be a difficult read but it is a valuable reference work. Also, in this forum, there is a post/discussion about Advanced SD Textbooks (4-8-2008) that may p...

Wilson -

I've sent you a U2U reply.

Regards,

John

Thank you for your reply.

Does anyone know of a Vensim consultant and/or developer list or registry?

My company may have need of a consultant/developer in the Philadelphia, Pennsylvania area.

Thanks for any assitance you can provide.

Your suggestion works beautifully.

I appreciate your help.

John

Thank you for your assistance.

I shall try your suggestion now.

John

Hi Lee -

I'm sorry for the oversight. I've attached the beginnings of the model. At this point I am simply trying to read data in and pass it to another subscripted variable to ensure I had the subscripts right and the data is read in correctly.

Thanks for your help.

John

I am a new Vensim user and am currently in the "learning by trial and error" mode. I am trying to set up a two dimensional array to hold population data that will be read in from an Excel spreadsheet. My subscripts are AgeCohort and Gender with values (AC1 - AC18) and (Male, Female) respec...