Bsimplex Class Reference

Structure used in the downhill simplex method. More...

#include <simplex.h>

Public Member Functions
	Bsimplex ()
	Bsimplex (long nv, long np, long nc, long n, vector< double > &ax, vector< double > &ay)
	Initializes a Bsimplex structure. More...
long	variables ()
long	constants ()
double	constant (long i)
void	constant (long i, double p)
void	constants (long n, vector< double > &p)
long	points ()
long	parameters ()
void	parameters (long n, vector< double > &p)
vector< double >	parameter_vector ()
void	parameter (long i, double p)
double	parameter (long i)
void	limit_low (long i, double v)
double	limit_low (long i)
void	limit_high (long i, double v)
double	limit_high (long i)
void	limits (long i, double vlo, double vhi)
void	limits_low (long n, vector< double > &p)
void	limits_high (long n, vector< double > &p)
vector< double > &	independent_values ()
vector< double > &	dependent_values ()
double	dependent_variance ()
double	R (double(funk)(Bsimplex &))
double	run (long maxcycles, double tolerance, double(funk)(Bsimplex &), long report=0)
double	amotry (vector< double > &mp, vector< double > &R, long ihi, double fac, double(funk)(Bsimplex &))
void	show ()

Detailed Description

Structure used in the downhill simplex method.

Nelder and Mead downhill simplex method for generalized parameter fitting
Adapted from Numerical Recipes, 2nd edition, Press et al. 1992
The structure is set up to accommodate any number of variables, parameters,
constants and points.
The structure is very flexible in the sense that only some fields
are absolutely required and with a fixed meaning for the simplex method.
The required fields are:
    nparam, param, lo, hi
The other fields may be recast and used as desired in the user function.
Intended sizes:
    param       nparam.
    lo          nparam.
    hi          nparam.
    c           nconstant.
    x           npoint*nvar.
    fx          npoint.

Constructor & Destructor Documentation

Bsimplex() [1/2]

Bsimplex::Bsimplex ( )

inline

Bsimplex() [2/2]

Bsimplex::Bsimplex	(	long	nv,
		long	np,
		long	nc,
		long	n,
		vector< double > &	ax,
		vector< double > &	ay
	)

Initializes a Bsimplex structure.

Parameters

nv	number of independent variables.
np	number of parameters to determine.
nc	number of constants.
n	number of points or function values.
&ax	array of independent variables (nv*n).
&ay	array of dependent variables (n). The minimum setup of the simplex structure requires a number of parameters greater than 0 Reference: Press W.H. et al (1992) Numerical Recipes in C.

Member Function Documentation

amotry()

double Bsimplex::amotry	(	vector< double > &	mp,
		vector< double > &	R,
		long	ihi,
		double	fac,
		double(funk)(Bsimplex &)
	)

constant() [1/2]

double Bsimplex::constant ( long  i )

inline

constant() [2/2]

void Bsimplex::constant ( long  i, double  p  )

inline

constants() [1/2]

long Bsimplex::constants ( )

inline

constants() [2/2]

void Bsimplex::constants ( long  n, vector< double > &  p  )

inline

dependent_values()

vector< double > & Bsimplex::dependent_values ( )

inline

dependent_variance()

double Bsimplex::dependent_variance ( )

inline

independent_values()

vector< double > & Bsimplex::independent_values ( )

inline

limit_high() [1/2]

double Bsimplex::limit_high ( long  i )

inline

limit_high() [2/2]

void Bsimplex::limit_high ( long  i, double  v  )

inline

limit_low() [1/2]

double Bsimplex::limit_low ( long  i )

inline

limit_low() [2/2]

void Bsimplex::limit_low ( long  i, double  v  )

inline

limits()

void Bsimplex::limits ( long  i, double  vlo, double  vhi  )

inline

limits_high()

void Bsimplex::limits_high ( long  n, vector< double > &  p  )

inline

limits_low()

void Bsimplex::limits_low ( long  n, vector< double > &  p  )

inline

parameter() [1/2]

double Bsimplex::parameter ( long  i )

inline

parameter() [2/2]

void Bsimplex::parameter ( long  i, double  p  )

inline

parameter_vector()

vector< double > Bsimplex::parameter_vector ( )

inline

parameters() [1/2]

long Bsimplex::parameters ( )

inline

parameters() [2/2]

void Bsimplex::parameters ( long  n, vector< double > &  p  )

inline

points()

long Bsimplex::points ( )

inline

R()

double Bsimplex::R ( double(funk)(Bsimplex &)  )

inline

run()

double Bsimplex::run	(	long	maxcycles,
		double	tolerance,
		double(funk)(Bsimplex &)	,
		long	report = 0
	)

show()

void Bsimplex::show ( )

inline

variables()

long Bsimplex::variables ( )

inline

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The documentation for this class was generated from the following files:

• /Users/heymannb/b20/bsoft/include/simplex.h
• /Users/heymannb/b20/bsoft/src/util/simplex.cpp