Search found 3 matches

by hebeil
Thu Oct 04, 2007 7:29 pm
Forum: Vensim
Topic: steady state calculations
Replies: 1
Views: 2436

steady state calculations

We're wanting to run a disease model where we start the model in the steady state. It would be too difficult to solve for the steady state algebraically, however, and we would prefer to not start the model 100 years or so earlier to find it because some of the parameters are sensitive to time so thi...
by hebeil
Tue Sep 11, 2007 9:20 pm
Forum: Vensim
Topic: question about using time in outcome eqns
Replies: 2
Views: 2577

question about using time in outcome eqns

Hello, I want to compute the probability of infection as a function of the prevalence of disease over the past 15 years (the prevalence being an outcome of my model). I'm assuming there's a way to do this in vensim... The timestep function from my understanding would give the prevalence from 15 year...
by hebeil
Mon Sep 03, 2007 4:02 pm
Forum: Vensim
Topic: Vensim model formatting
Replies: 4
Views: 3938

Vensim model formatting

Hello, I'm new to Vensim and was wondering if anyone had tips on general formatting issues. For instance, in trying to connect one rate to another, I can't seem to move the name of the rate without moving the whole thing. Also, if I want to have 2 flows coming out of 1 stock, can I have both coming ...