Package cnuphys.splot.fit

Class LineFit

java.lang.Object

com.nr.model.Fitab

cnuphys.splot.fit.LineFit

All Implemented Interfaces:

IValueGetter

public class LineFit
extends com.nr.model.Fitab
implements IValueGetter

Field Summary

Fields inherited from class com.nr.model.Fitab

a, b, chi2, q, sig, siga, sigb, sigdat, x, y

Constructor Summary

Constructors

Constructor	Description
LineFit(Fit fit)	Create a Error function Fit and perform the fit.

Method Summary

Modifier and Type	Method	Description
double	getChiSquare()	Get the chi square of the fit
double	getIntercept()	Get the intercept of the fit
double	getInterceptSigma()	Get the intercept estimate
double	getSlope()	Get the slope of the fit
double	getSlopeSigma()	Get the error estimate in the slope
double	value(double x)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

LineFit

public LineFit(Fit fit)
        throws IllegalArgumentException

Create a Error function Fit and perform the fit. This is for data with y errors only. If there are x errors too, use LinearExyFit.

Parameters:

fit - the fit data

Throws:

IllegalArgumentException

Method Details

getSlope

public double getSlope()

Get the slope of the fit

Returns:

the slope of the fit

getIntercept

public double getIntercept()

Get the intercept of the fit

Returns:

the intercept of the fit

getSlopeSigma

public double getSlopeSigma()

Get the error estimate in the slope

Returns:

the error estimate in the slope

getInterceptSigma

public double getInterceptSigma()

Get the intercept estimate

Returns:

the intercept estimate

getChiSquare

public double getChiSquare()

Get the chi square of the fit

Returns:

the chi square

value

public double value(double x)

Specified by:

value in interface IValueGetter