[ADMB Users] my ADMB program is very sensitive to initial guess values in parameters, but different results look okay???
shyunuw at gmail.com
Fri Jun 15 16:23:01 PDT 2012
With small changes in initial guess values of parameters, different results
are generated. Interestingly different results are satisfactory in terms of
Hessian matrix calculation, and stability (i.e., maximum gradient = almost
zero). Although a difference between two results are small, the
episode indicates a failure to regenerate the same results. Given the same
data, the same results must be generated. Also it is not good that the
results are *very* sensitive to initial guess values. Appreciated is any
suggestion/advice about how to avoid the problem?
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