Module E04GDF in NAG

General Information

Unconstrained minimum of a sum of squares, combined Gauss–Newton and modified Newton algorithm using first derivatives (comprehensive)

Usage

CALL E04GDF(M,N,LSQFUN,LSQMON,IPRINT,MAXCAL,ETA,XTOL,STEPMX,X,FSUMSQ,FVEC,FJAC,LJ,S,V,LV,NITER,NF,IUSER,LIW,RUSER,LW,IFAIL)

Classification

K1b1a2	Unconstrained nonlinear least squares approximation by smooth functions, user provides first derivatives
L8e1b2	Parameter estimation in nonlinear least squares regression using unweighted data, user provides derivatives

Type

subroutine in NAG package (E04 sublibrary)

Language

Fortran

Availability

Proprietary, Portable