w2kmeans::PolynomialFit Class Reference

List of all members.

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Detailed Description

Fits a polynomial to data points.

Author:

lakshman

Version:

Id

w2kmeans_PolynomialFit.h,v 1.3 2009/06/16 21:39:08 lakshman Exp

Public Member Functions
	PolynomialFit (const std::string &nameIn, int order=1)
const std::string &	getName () const
const std::vector< double > &	getCoeff ()
	The coefficients are returned so that the first coefficient is the multiplier for x^(N-1).
double	getYForX (double x)
bool	isValid () const
	enough points for a valid fit?
double	update (const std::vector< double > &x, const std::vector< double > &y)
	update with all points, and return rmserror on data
double	computeMonotonicFitError (const std::vector< double > &x, const std::vector< double > &y)
	update with all delta of points, and return rmserror on data.

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Constructor & Destructor Documentation

w2kmeans::PolynomialFit::PolynomialFit	(	const std::string &	nameIn,
		int	order = 1
	)			[inline]

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Member Function Documentation

double w2kmeans::PolynomialFit::computeMonotonicFitError	(	const std::vector< double > &	x,
		const std::vector< double > &	y
	)

update with all delta of points, and return rmserror on data.

This is useful if your intent is to verify that the data are monotonic; the actual fit itself will be on the deltas, so you can not use the getYForX() to get an estimate of data.

const std::vector<double>& w2kmeans::PolynomialFit::getCoeff

(

)

[inline]

The coefficients are returned so that the first coefficient is the multiplier for x^(N-1).

const std::string& w2kmeans::PolynomialFit::getName

(

)

const [inline]

double w2kmeans::PolynomialFit::getYForX

(

double

x

)

[inline]

bool w2kmeans::PolynomialFit::isValid

(

)

const [inline]

enough points for a valid fit?

double w2kmeans::PolynomialFit::update	(	const std::vector< double > &	x,
		const std::vector< double > &	y
	)

update with all points, and return rmserror on data

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