[FLR-list] fmle with fixed parameters error

Hintzen, Niels Niels.Hintzen at wur.nl
Thu Feb 16 11:09:56 CET 2012


Hi,

Trying to calculate the likelihood of a SR fit using fmle, but this fails..
The a and b parameters are obtained from a converged fit. Any idea what is going on here and how I can fix it?

Thanks a lot. Using FLCore 2.4 on R2.13.2 in 32-bit mode.

Niels



fmle(SR.function,fixed=list(a=4.6,b=1.56))@details$value
  Nelder-Mead direct search function minimizer
function value for initial parameters = -12.689450
  Scaled convergence tolerance is 1.89088e-07
Stepsize computed as 0.100000
Exiting from Nelder Mead minimizer
    1 function evaluations used
Error in do.call("[<-", c(list(x = x at .Data), dx, list(value = value))) : 
  replacement has length zero




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