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2. MAJOR CHANGES IN HOF v2

2.1 MAJOR CHANGES IN LATER RELEASES

Version 2.3 (released 16/10/98)

Version 2.2 (released 30/3/98)

Version 2.1 (released 5/2/98)

HOF v2 was replaced swiftly with v2.1. The major change is that the program does not crash with illegal floating point operations, but issues a warning and tries to rescue the estimation in the next iteration. In my test data sets, the next iterations indeed are successful, and the program converges to something. However, it may be best to be cautious with these results. Next species should be OK anyway. In addition, Numerical Recipes routines (dfpmin, lnsrch) were changed so that floating point exceptions are rarer than in v2.


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