Catalano.Statistics.Regression

Class LinearRegression

java.lang.Object

Catalano.Statistics.Regression.LinearRegression

All Implemented Interfaces:

ILinear, ISimpleRegression

public class LinearRegression
extends java.lang.Object
implements ISimpleRegression, ILinear

Linear Regression. Equation: y = ax + b

Constructor Summary

Constructors

Constructor and Description
LinearRegression(double[] x, double[] y) Initializes a new instance of the LinearRegression class.

Method Summary

Modifier and Type	Method and Description
double	CoefficientOfDetermination() Get the R^2.
double	getInclination() Get inclination value.
double	getInterception() Get interception value.
double	Regression(double x) Compute regression of specific value.
double[]	Regression(double[] x) Compute regression in the vector.
void	setInclination(double inclination) Set inclination value.
void	setInterception(double interception) Set interception value.
java.lang.String	toString() Show the regression's equation.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

LinearRegression

public LinearRegression(double[] x,
                        double[] y)

Initializes a new instance of the LinearRegression class.

Parameters:

x - Data.

y - Data.

Method Detail

getInclination

public double getInclination()

Description copied from interface: ILinear

Get inclination value.

Specified by:

getInclination in interface ILinear

Returns:

Inclination.

setInclination

public void setInclination(double inclination)

Description copied from interface: ILinear

Set inclination value.

Specified by:

setInclination in interface ILinear

Parameters:

inclination - Inclination value.

getInterception

public double getInterception()

Description copied from interface: ILinear

Get interception value.

Specified by:

getInterception in interface ILinear

Returns:

Interception value.

setInterception

public void setInterception(double interception)

Description copied from interface: ILinear

Set interception value.

Specified by:

setInterception in interface ILinear

Parameters:

interception - Interception value.

Regression

public double Regression(double x)

Description copied from interface: ISimpleRegression

Compute regression of specific value.

Specified by:

Regression in interface ISimpleRegression

Parameters:

x - Value.

Returns:

Regression.

Regression

public double[] Regression(double[] x)

Description copied from interface: ISimpleRegression

Compute regression in the vector.

Specified by:

Regression in interface ISimpleRegression

Parameters:

x - Vector.

Returns:

Regression.

CoefficientOfDetermination

public double CoefficientOfDetermination()

Description copied from interface: ISimpleRegression

Get the R^2.

Specified by:

CoefficientOfDetermination in interface ISimpleRegression

Returns:

toString

public java.lang.String toString()

Description copied from interface: ISimpleRegression

Show the regression's equation.

Specified by:

toString in interface ISimpleRegression

Overrides:

toString in class java.lang.Object