ASA047
Nelder-Mead Minimization Algorithm

ASA047 is a C library which seeks to minimize a scalar function of several variables using the Nelder-Mead algorithm, by R ONeill.

ASA047 is Applied Statistics Algorithm 47. Source code for many Applied Statistics Algorithms is available through STATLIB.

Licensing:

The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.

Languages:

ASA047 is available in a C version and a C++ version and a FORTRAN90 version and a MATLAB version and a Python version.

Related Data and Programs:

asa047_test

COMPASS_SEARCH, a C library which seeks the minimizer of a scalar function of several variables using compass search, a direct search algorithm that does not use derivatives.

PRAXIS, a C routine which minimizes a scalar function of several variables.

TOMS178, a C library which optimizes a scalar functional of multiple variables using the Hooke-Jeeves method.

Author:

Original FORTRAN77 version by R ONeill; C version by John Burkardt.

Reference:

1. John Nelder, Roger Mead,
   A simplex method for function minimization,
   Computer Journal,
   Volume 7, 1965, pages 308-313.
2. R ONeill,
   Algorithm AS 47: Function Minimization Using a Simplex Procedure,
   Applied Statistics,
   Volume 20, Number 3, 1971, pages 338-345.

Source Code:

• asa047.h, the source code.
• nelmin.c, minimizes a function using the Nelder-Mead algorithm.
• timestamp.c, prints out the current YMDHMS date as a timestamp.