Record Display for the EPA National Library Catalog

RECORD NUMBER: 11 OF 44

OLS Field Name OLS Field Data
Main Title Confidence Intervals and Curvature Measures in Nonlinear Regression Using the IML and NLIN Procedures in SAS (Trade Name) Software.
Author Kugler, D. L. ; Lee., E. H. ;
CORP Author NSI Technology Services Corp., Corvallis, OR.;Corvallis Environmental Research Lab., OR.
Publisher 1990
Year Published 1990
Report Number EPA/600/D-90/077;
Stock Number PB90-246398
Additional Subjects Regression analysis ; Confidence limits ; Computer programs ; Reprints ; Nonlinear analysis ; Wald intervals
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB90-246398 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 12/03/1990
Collation 8p
Abstract
Interval estimates for nonlinear parameters using the linear approximation are sensitive to parameter curvature effects. The adequacy of the linear approximation (Wald) interval is determined using the nonlinearity measures of Bates and Watts (1980), and Clarke (1987b), and the profile t plots of Bates and Watts (1988). These curvature measures and profile t plot calculations are implemented using the SAS/IML and SAS/NLIN procedures.