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From: SourceForge.net <no...@so...> - 2005-12-23 22:20:54
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Bugs item #1389187, was opened at 2005-12-23 14:20 Message generated for change (Tracker Item Submitted) made by Item Submitter You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=101703&aid=1389187&group_id=1703 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: None Group: future requests Status: Open Resolution: None Priority: 5 Submitted By: Nobody/Anonymous (nobody) Assigned to: Nobody/Anonymous (nobody) Summary: SD rabbit example not right Initial Comment: Hello, Was looking at the rabbit population system dynamics example and realized that the output doesn't make sense. The referenced paper is entitled, "Generic Structures: S-shaped growth." Thus the model's response should start from an initial value and simply move asmyptoticallly to a higher value. The repast model oscillates, which is theoretically impossible in the rabbit population model because there is only one stock -- it takes to stocks for a system to oscillate. Wondering if some stray integration/simulation phenomenon is responsible for ringing. In any respect, something's not right. thx, cor...@ba... ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=101703&aid=1389187&group_id=1703 |