D506 Function Minimization and Error Analysis

The MINUIT package performs minimization and analysis of the shape of a multi-parameter function. It is intended to be used on Chisquare or likelihood functions for fitting data and finding parameter errors and correlations. The more important options offered are:

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Variable metric (Fletcher) minimization

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Monte Carlo minimization

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Simplex (Nelder and Mead) minimization

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Parabolic error analysis (error matrix)

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MINOS (non-linear) error analysis

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Contour plotting

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Fixing and restoring parameters

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Global minimization

Structure:

SUBROUTINE subprograms
User Entry Names:

MINTIO,	MINUIT,	MNCOMD,	MNCONT,	MNERRS,	MNEXCM,	MNINPU,	MNINTR,
MNPARS,	MNREAD

Internal Entry Names:

MNAMIN,	MNBINS,	MNCALF,	MNCLER,	MNCNTR,	MNCRCK,	MNCROS,	MNCUVE,
MNDERI,	MNDXDI,	MNEIG,	MNEMAT,	MNEVAL,	MNEXIN,	MNFIXP,	MNFREE,
MNGRAD,	MNHELP,	MNHESS,	MNHES1,	MNIMPR,	MNINEX,	MNINIT,	MNLIMS,
MNLINE,	MNMATU,	MNMIGR,	MNMNOS,	MNMNOT,	MNPARM,	MNPFIT,	MNPINT,
MNPLOT,	MNPOUT,	MNPRIN,	MNPSDF,	MNRAZZ,	MNRN15,	MNRSET,	MNSAVE,
MNSCAN,	MNSEEK,	MNSET,	MNSETI,	MNSIMP,	MNSTAT,	MNSTIN,	MNTINY,
MNUNPT,	MNWARN,	MNWERR,	MNVERT,	STAND

Usage:

MINUIT can be used either

as a ``master'' batch program which reads and executes commands appearing in the input data stream;

as a ``master'' interactive program which reads and executes commands given from the terminal;

as a Fortran callable ``slave'' package, called from the user program or from an intermediate package such as PAW or HBOOK;

any combination of the above.

See Long Write-up for details.
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D510