Array.PolynomialFit(Array, Variable, Variable) Method

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Description

Uses Singular Value Decomposition to compute the coefficients of a polynomial to best fit the provided data set. The coefficients are returned in order of highest to lowest degree.

Timing Precision Mode

This page describes functionality in nanosecond timing precision mode.

Click here to see the documentation for this object in millisecond timing precision mode.

Method Signature

Array.PolynomialFit(	Array yValues,
	Variable polynomialDegree,
	Variable rSquared)

Arguments

yValues
Description:	The y values of the data set to be fit.

polynomialDegree
Description:	The degree of the polynomial to fit to the data.
Valid Range:	polynomialDegree > 0

rSquared
Description:	The coefficient of determination, which measures the quality of the polynomial fit to the data. The value has a range from 0 to 1, with 1 indicating a perfect fit.
Valid Range:	rSquared ≥ 0

Return Value

Type:

Matrix of number

Returns a row matrix of the polynomial coefficients in order of highest to lowest degree. The number of columns of the matrix will be polynomialDegree + 1.

Syntax

myMatrix1 = myArray1.PolynomialFit(myArray2, myVariable1, myVariable2);