Search found 4 matches

by leonardo
Tue Jan 23, 2007 12:07 pm
Forum: Vensim
Topic: product awareness
Replies: 7
Views: 6168

bob, thanks a lot for your help.
i guess we managed to finish it the way it should be.

regards
by leonardo
Mon Jan 22, 2007 5:34 pm
Forum: Vensim
Topic: product awareness
Replies: 7
Views: 6168

thanks.
yea, i guess we are on the right way.

our last step would be inserting a delay_fixed.
how would you do that, as you described it, since on the right hand of the equation theres only room for a delay expression and not any other formulas.
by leonardo
Fri Jan 19, 2007 4:39 pm
Forum: Vensim
Topic: product awareness
Replies: 7
Views: 6168

alright, v2 is here.

our problem now is, we get an 'simultaneous equations involving' error involing 'advertising'.

we do not really understand what this means, altough we read the example solving this problem in the manual.

any help understanding this model?
by leonardo
Fri Jan 19, 2007 2:55 pm
Forum: Vensim
Topic: product awareness
Replies: 7
Views: 6168

product awareness

hi all, me and my colleague are sitting over a model for hours... we could need help please. we are trying to solve one of sterman's models concerning product awareness, cause we we're philosophising about our product, we are planing to launch, at least in our minds :) the basic model is attached, w...