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- Wed Feb 11, 2009 2:33 pm
- Forum: Vensim
- Topic: Preventing negative stocks with IF THEN ELSE
- Replies: 1
- Views: 2601
Preventing negative stocks with IF THEN ELSE
Hey all! I'm a newbie to system dynamics and I'm learning how to use VenSim PLE. One question that has been bothering me is about negative stocks. Can I use this kind of an equation to prevent the stock from going negative: IF THEN ELSE(outflow rate > stock, stock, outflow rate) I believe that the f...