Module DBCLSF in IMSLM

General Information

Solve a nonlinear least squares problem subject to bounds on the variables using a modified Levenberg-Marquardt algorithm and a finite-difference Jacobian.

Usage

CALL DBCLSF (FCN, M, N, XGUESS, IBTYPE, XLB, XUB, XSCALE, FSCALE, IPARAM, RPARAM, X, FVEC, FJAC, LDFJAC)

Classification

K1b1a1	Unconstrained nonlinear least squares approximation by smooth functions, user provides no derivatives
K1b2a	Linearly constrained nonlinear least squares approximation

Type

subroutine in IMSLM package

Language

Fortran

Availability

Proprietary, Portable

Precision

Double Precision

Alternates

BCLSF

Single Precision

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

cat /home/fetch/Subjects/Math-Stat-Software/imsl/Documentation/dbclsf

Example

cat /home/fetch/Subjects/Math-Stat-Software/imsl/Examples/dbclsf

To Link

Login to spruce.nist.gov and see ITL How-To for information on how to setup your environment and link.