Module SNLS1E in SLATEC

General Information

An easy-to-use code which minimizes the sum of the squares of M nonlinear functions in N variables by a modification of the Levenberg-Marquardt algorithm.

Usage

CALL SNLS1E (FCN, IOPT, M, N, X, FVEC, TOL, NPRINT, INFO, IW, WA, LWA)

Classification

K1b1a1	Unconstrained nonlinear least squares approximation by smooth functions, user provides no derivatives
K1b1a2	Unconstrained nonlinear least squares approximation by smooth functions, user provides first derivatives

Type

subroutine in SLATEC package

Language

Fortran

Availability

Public domain, Portable

Precision

Single Precision

Alternates

DNLS1E

Double Precision

See also

SCOV

Download from ARNO; Silicon Graphics Origin 2000

Location

National Institute of Standards and Technology (NIST), Gaithersburg, MD.

Contact

Gaithersburg Consulting Office: 301-975-2968, consult@nist.gov

Usage

Those logged in to arno.nist.gov or amur.nist.gov may access this module as follows.

To Link

f77 -o prog prog.f -lslatec

Installation on ITL; Unix Workstation Network

Location

National Institute of Standards and Technology (NIST), Gaithersburg, MD.

Contact

Gaithersburg Consulting Office: 301-975-2968 (FTS 879-2968)

Usage

Access available only to NIST staff on internal Unix systems. They may access this package provided the /itl tree is cross-mounted.

Documentation

slatecdoc snls1e

Fullsource

slatecsrcx snls1e

Source

slatecsrc SNLS1E

To Link

f77 -o example example.f -lslatec