**Chapter
31. **** Fitting Polynomials** (.NET, C#, CSharp, VB, Visual Basic, F#)

As described in Chapter 8,
the CenterSpace.NMath.Core namespace includes
classes for calculating least squares fits of linear functions to a set
of points. In addition, the CenterSpace.NMath.Analysis
namespace provides class **PolynomialLeastSquares**,
which performs a least squares fit of a **Polynomial**
to a set of points.

This chapter describes how to use class **PolynomialLeastSquares**.

**NOTE—****For
testing the ****goodness of fit of PolynomialLeastSquares
fits, see class GoodnessOfFit in the NMath Stats library. Available
statistics include the ****residual standard error,
the ****coefficient of determination
(****R2 and "****adjusted" R2), the F-statistic
for the overall model with its numerator and denominator degrees of freedom,
and standard errors, t-statistics, and corresponding (two-sided)
p-values for the model parameters.**