Chapter Contents
Previous
Next
|
Chapter Contents |
Previous |
Next |
| Introduction to Regression Procedures |
The ORTHOREG procedure performs linear least-squares regression using the Gentleman-Givens computational method, and it can produce more accurate parameter estimates for ill-conditioned data. PROC GLM and PROC REG produce very accurate estimates for most problems. However, if you have very ill-conditioned data, consider using the ORTHOREG procedure. The collinearity diagnostics in PROC REG can help you to determine whether PROC ORTHOREG would be useful.
|
Chapter Contents |
Previous |
Next |
 Top |
Copyright © 1999 by SAS Institute Inc., Cary, NC, USA. All rights reserved.