Package com.irurueta.numerical.interpolation

Class SimpleInterpolatingPolynomialEstimator

java.lang.Object

com.irurueta.numerical.interpolation.InterpolatingPolynomialEstimator

com.irurueta.numerical.interpolation.SimpleInterpolatingPolynomialEstimator

public class SimpleInterpolatingPolynomialEstimator
extends InterpolatingPolynomialEstimator

Estimates coefficients of a polynomial passing through provided set of x and y points. This implementation is faster and more accurate than other implementations such as implementations of PolynomialEstimator. Those implementations are based on curve fitting a polynomial of a given degree based on a number of points that can be much larger than the number of points, which results in a polynomial that does not exactly pass through provided points, but provides a minimum square error result. On the other hand, this implementation builds a polynomial of order equal to the length of provided x and y points.

Constructor Summary

Constructors

Constructor	Description
SimpleInterpolatingPolynomialEstimator()

Method Summary

Modifier and Type	Method	Description
void	estimate(double[] x, double[] y, double[] cof)	Estimates polynomial coefficients from provided x and y points.

Methods inherited from class com.irurueta.numerical.interpolation.InterpolatingPolynomialEstimator

estimate, estimate, estimateCoefficients

Methods inherited from class java.lang.Object

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

Constructor Details

SimpleInterpolatingPolynomialEstimator

public SimpleInterpolatingPolynomialEstimator()

Method Details

estimate

public void estimate(double[] x,
 double[] y,
 double[] cof)

Estimates polynomial coefficients from provided x and y points.

Specified by:

estimate in class InterpolatingPolynomialEstimator

Parameters:

x - x points the estimated polynomial passes through.

y - y points the estimated polynomial passes through.

cof - instance where coefficients of estimated polynomial will be stored.

Throws:

IllegalArgumentException - if any of the provided values doesn't have the same length.