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Modeling and Multivariate Methods - SAS

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192 Fitting Generalized Linear Models Chapter 6<br />

Platform Comm<strong>and</strong>s<br />

Platform Comm<strong>and</strong>s<br />

The following comm<strong>and</strong>s are available in the Generalized Linear Model report.<br />

Custom Test allows you to test a custom hypothesis. Refer to “Custom Test” on page 68 in the “Fitting<br />

St<strong>and</strong>ard Least Squares Models” chapter for details on custom tests.<br />

Contrast allows you to test for differences in levels within a variable. If a contrast involves a covariate, you<br />

can specify the value of the covariate at which to test the contrast.<br />

In the Crab Satellite example, suppose you want to test whether the dark-colored crabs attracted a different<br />

number of satellites than the medium-colored crabs. Selecting Contrast brings up the following dialog.<br />

Here you choose color, the variable of interest. When you click Go, you are presented with a Contrast<br />

Specification dialog.

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