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Fit Analyses |

There are two types of fitting techniques:
parametric and nonparametric.
Parametric techniques enable you to add confidence ellipses,
fit regression polynomials, and add confidence curves of
fitted polynomials to the **Y**-by-**X** scatter plot.
Nonparametric techniques enable you to add spline, kernel,
and local polynomial fits to the **Y**-by-**X** scatter plot.

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