I'm trying to figure out how to overcome this error message:
 
Error in optim(c(5, -0.5), llfunc.prop.female.age, method = "BFGS") : 
  non-finite finite-difference value [2]
 
And particularly would like to know what the "[2]" is pointing towards, I'm
assuming that will help me search out the problem.  Is there any
documentation available that explains the particulars of error messages?
 
Thanks,
Jeremy 
 
Jeremy Claisse 
Hawaii Cooperative Fishery Research Unit 
University of Hawaii 
 <mailto:claisse@hawaii.edu> claisse@hawaii.edu
 


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