LeastSquaresInterpolator (HM Gears 0.10.7 API)

java.lang.Object
- org.hortonmachine.gears.utils.math.interpolation.LeastSquaresInterpolator

All Implemented Interfaces:

Interpolator
```
public class LeastSquaresInterpolator
extends Object
implements Interpolator
```
A least square regression interpolator.
This was done basing on the Java Number Cruncher Book by Ronald Mak (see http://www.apropos-logic.com/books.html).

Author:

Andrea Antonello (www.hydrologis.com)

Constructor Summary

Constructors
Constructor Description

LeastSquaresInterpolator(List<Double> xList, List<Double> yList)
Constructor.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`double`	`getA0()`	Return the coefficient a0.
`double`	`getA1()`	Return the coefficient a1.
`double`	`getInterpolated(double x)`	Returns the interpolated value y=f(x).
`double`	`getSumX()`	Return the sum of the x values.
`double`	`getSumXX()`	Return the sum of the x*x values.
`double`	`getSumXY()`	Return the sum of the x*y values.
`double`	`getSumY()`	Return the sum of the y values.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - LeastSquaresInterpolator
```
public LeastSquaresInterpolator(List<Double> xList,
                                List<Double> yList)
```
    Constructor.
    
    Parameters:
    
    xList - the list of X samples.
    
    yList - the list of Y = f(X) samples.
- Method Detail
  - getInterpolated
```
public double getInterpolated(double x)
```
    Description copied from interface: Interpolator
    
    Returns the interpolated value y=f(x).
    
    Specified by:
    
    getInterpolated in interface Interpolator
    
    Parameters:
    
    x - the value of x.
    
    Returns:
    
    the interpolated value of y.
  - getA0
```
public double getA0()
```
    Return the coefficient a0.
    
    Returns:
    
    the value of a0
  - getA1
```
public double getA1()
```
    Return the coefficient a1.
    
    Returns:
    
    the value of a1
  - getSumX
```
public double getSumX()
```
    Return the sum of the x values.
    
    Returns:
    
    the sum
  - getSumY
```
public double getSumY()
```
    Return the sum of the y values.
    
    Returns:
    
    the sum
  - getSumXX
```
public double getSumXX()
```
    Return the sum of the x*x values.
    
    Returns:
    
    the sum
  - getSumXY
```
public double getSumXY()
```
    Return the sum of the x*y values.
    
    Returns:
    
    the sum