Data Smoothing: Polynomial Regression |
The Polynomial Regression analysis fits a low-order polynomial regression function to bivariate data by using ordinary least squares. This is a global parametric fit, whereas the other Stat Studio smoothers are modern local nonparametric smoothers.
You can run a Polynomial Regression analysis by selecting
Analysis Data Smoothing
Polynomial Regression from the main menu.
The computation of
the regression function, confidence limits, and related
statistics is implemented by calling the REG procedure in
SAS/STAT. See the
documentation for the REG procedure
in the SAS/STAT User's Guide for additional details.
Note that general multivariate regression is available by selecting
Analysis Model Fitting
Linear Regression from
the main menu.