- ESTIMATE 'label' effect values ...
< options > ;
The ESTIMATE statement is similar to a CONTRAST statement, except
only one-row L' matrices are permitted.
Each row is checked for estimability.
If PROC GENMOD finds a contrast to be nonestimable, it
displays missing values in corresponding rows in the results.
Refer to Searle (1971) for a
discussion of estimable functions.
The actual estimate,
, its approximate standard error, and its confidence limits
A Wald chi-square test that = 0
is also displayed.
The approximate standard error of
the estimate is computed as the square root of , where is the estimated
covariance matrix of the parameter estimates.
If you specify a GEE model in the REPEATED statement,
is the empirical covariance matrix
If you specify the EXP option, then
, its standard error, and its confidence
limits are also displayed.
The construction of the L vector for an ESTIMATE statement
follows the same rules as listed under the CONTRAST statement.
You can specify the following options in the ESTIMATE statement
after a slash (/).
requests that a confidence interval be constructed
with confidence level 1-number.
The value of number must be between 0 and 1;
the default value is 0.05.
requests that the L matrix coefficients be displayed.
requests that , its standard error, and its confidence
limits be computed.
Copyright © 1999 by SAS Institute Inc., Cary, NC, USA. All rights reserved.