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Basic Analysis and Graphing - SAS

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Chapter 20 Creating Scatterplot Matrices 489<br />

Scatterplot Matrix Platform Options<br />

Figure 20.6 Example of a Scatterplot Matrix Window<br />

Replace variables in the plot by dragging <strong>and</strong> dropping a variable, in one of two ways: swap existing variables<br />

by dragging <strong>and</strong> dropping a variable from one axis to the other axis; or, click on a variable in the Columns<br />

panel of the associated data table <strong>and</strong> drag it onto an axis. This feature is not available for matrices in the<br />

Square format.<br />

Scatterplot Matrix Platform Options<br />

The following table describes the options within the red triangle menu next to Scatterplot Matrix.<br />

Show Points<br />

Points Jittered<br />

Fit Line<br />

Density Ellipses<br />

Shaded Ellipses<br />

Ellipses Coverage<br />

Ellipses Transparency<br />

Shows or hides the points in the scatterplots.<br />

Turns the jittering of the points in the scatterplot on or off.<br />

Fits a simple regression line <strong>and</strong> its mean confidence interval to the<br />

scatterplots.<br />

Shows or hides the outline of the density ellipses. See “Example Using a<br />

Grouping Variable” on page 490.<br />

Colors the area within each ellipse. See “Example Using a Grouping<br />

Variable” on page 490.<br />

Enables you to choose an α-level for the ellipses to cover.<br />

Enables you to choose the transparency of the shaded ellipses, where 0 is<br />

completely transparent <strong>and</strong> 1 is completely opaque.

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