[ADMB Users] Question about R2admb

dave fournier davef at otter-rsch.com
Thu Mar 27 09:34:06 PDT 2014

>  nll += kterm + 0.5*square(deloy)*(deloy<=1.4)   with a logical operator

This looks to be non differentiable.  ADMB has the  posfun function to 
enable the user
to approximate sharp cutoff points with smooth ones

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