Internal estimation function for LBSPR MP
LBSPRgen(SL50, SL95, FM, nage, nlen, CVLinf, LenBins, LenMids, x, MK, Linf, P,
L50, L95, Beta)Length at 50 percent selectivity
Length at 95 percent selectivity
Ratio of apical fishing mortality to natural mortality
Number of pseudo age-classes
Number of length bins
CV of length-at-age
Vector of length bins
Vector of mid-points of length bins
Vector of psuedo ages
Ratio of M/K
Asymptotic length
Fraction of initial cohort alive at maximum age under unfished conditions
Length at 50 percent maturity
Length at 95 percent maturity
Exponent of the length-weight relationship