Class PolynomialFitter

Namespace

SignalSharp.Utilities

Assembly

SignalSharp.dll

Provides methods for polynomial fitting and evaluation.

public static class PolynomialFitter

Inheritance

object

PolynomialFitter

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Methods

EvaluatePolynomial(double[], double)

Evaluates a polynomial at a given x-value using the provided coefficients.

public static double EvaluatePolynomial(double[] coefficients, double x)

Parameters

coefficients double[]

The coefficients of the polynomial, from lowest to highest order.

x double

The x-value at which to evaluate the polynomial.

Returns

double

The y-value of the polynomial at the given x-value.

FitPolynomial(double[], double[], int)

Fits a polynomial of specified order to the given data points using the least squares method.

public static double[] FitPolynomial(double[] x, double[] y, int order)

Parameters

x double[]

The x-coordinates of the data points.

y double[]

The y-coordinates of the data points.

order int

The order of the polynomial to fit.

Returns

double[]

An array of coefficients for the fitted polynomial, from lowest to highest order.

Exceptions

ArgumentException

Thrown when:

• The input arrays have different lengths.
• The polynomial order is negative.
• The number of data points is less than or equal to the polynomial order.