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by Wei Xie wei.xie delsys.ca
Fri Apr 08, 2005 11:27 am
Forum: SD Mailing List Archive
Topic: How best to handle ratios in a model?
Replies: 11
Views: 14137

How best to handle ratios in a model?

Posted by Wei Xie <wei.xie@delsys.ca> >> Vensim has a function Zero If Dividing by Zero, ZIDZ(A,B), >> that gives A/B if B is not 0 and gives 0 if B=0. ZIDZ(A,B) only solves the problem in a mathematical/technical sense. Plus, ZIDZ(0.01, 0.00001)=1000, which may not be the ratio that decision makers...