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The GENMOD Procedure

EFFECTPLOT Statement

EFFECTPLOT <plot-type <(plot-definition-options)>> </ options> ;

The EFFECTPLOT statement produces a display of the fitted model and provides options for changing and enhancing the displays. Table 37.2 describes the available plot-types and their plot-definition-options.

Table 37.2 Plot-Types and Plot-Definition-Options

Description

Plot-Definition-Options

BOX plot-type

Displays a box plot of continuous response data at each level of a CLASS effect, with predicted values superimposed and connected by a line. This is an alternative to the INTERACTION plot-type.

PLOTBY= variable or CLASS effect
X= CLASS variable or effect

CONTOUR plot-type

Displays a contour plot of predicted values against two continuous covariates.

PLOTBY= variable or CLASS effect
X= continuous variable
Y= continuous variable

FIT plot-type

Displays a curve of predicted values versus a continuous variable.

PLOTBY= variable or CLASS effect
X= continuous variable

INTERACTION plot-type

Displays a plot of predicted values (possibly with error bars) versus the levels of a CLASS effect. The predicted values are connected with lines and can be grouped by the levels of another CLASS effect.

PLOTBY= variable or CLASS effect
SLICEBY= variable or CLASS effect
X= CLASS variable or effect

SLICEFIT plot-type

Displays a curve of predicted values versus a continuous variable grouped by the levels of a CLASS effect.

PLOTBY= variable or CLASS effect
SLICEBY= variable or CLASS effect
X= continuous variable

For full details about the syntax and options of the EFFECTPLOT statement, see the section EFFECTPLOT Statement of Chapter 19, Shared Concepts and Topics.

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