[kepler-dev] Preditor/Prey workflows

Daniel Higgins higgins at nceas.ucsb.edu
Fri Jun 18 15:43:29 PDT 2004

Hi All,

    I just spent some time putting together a more explict Predator/Prey 
workflow example for Kepler. Previously, Rich had constructed the 
workflow shown in the first diagram below. This workflow uses 
expressions and is meaningful if one understands the basic equations. 
The second diagram is explicitly defined for Wolves/Elk and uses 
mathematical actors rather than expressions. The two workflows give 
exactly the same results.

Dan Higgins - NCEAS

PS - The Elk_Wolf workflow is in CVS. It was created with Ptolemy 
4.0Beta and may not display properly with earlier versions.

Lotka Volterra Pred/Prey Workflow - Expression based model

Lotka Volterra Pred/Prey Workflow - Elk/Wolf model
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