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Basic Analysis and Graphing - SAS

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Chapter 13 Creating Three-Dimensional Scatterplots 361<br />

Scatterplot 3D Platform Options<br />

Table 13.4 Descriptions of the Scatterplot 3D Options (Continued)<br />

Rotated Components<br />

Biplot Rays<br />

Remove Prin Comp<br />

Save Prin Components<br />

Save Rotated<br />

Components<br />

Script<br />

Specifies the number of factors that you want to rotate <strong>and</strong> the rotation<br />

method. You rotate components to better align the directions of the factors<br />

with the original variables so that the factors might be more interpretable.<br />

For details, see the Modeling <strong>and</strong> Multivariate Methods book.<br />

Shows or hides biplot rays that correspond to the principal components. You<br />

must have already selected Principal Components, Std Prin Components, or<br />

Rotated Components for this option to appear.<br />

Removes principal components, st<strong>and</strong>ardized principal components, <strong>and</strong><br />

rotated components from the scatterplot 3D report. The 3D scatterplot<br />

reverts to its original display before principal components were selected. This<br />

option, however, does not remove any saved principal components from the<br />

data table.<br />

This option only appears after you add principal, st<strong>and</strong>ard, or rotated<br />

components to the 3D scatterplot.<br />

Saves the specified number of current principal component scores as new<br />

columns in the current data table. These columns also include the formulas<br />

used for the principal components. For n variables in the components list, n<br />

principal component columns are created <strong>and</strong> named Prin1, Prin2, ... Prinn.<br />

This option only appears after you add principal, st<strong>and</strong>ard, or rotated<br />

components to the 3D scatterplot.<br />

Saves all rotated component scores as columns in the current data table.<br />

These columns also include the formulas that were used. If you requested n<br />

rotated components, then n rotated component columns are created <strong>and</strong><br />

named Rot1, Rot2, ... Rotn.<br />

This option only appears after you add rotated components to the 3D<br />

scatterplot.<br />

Contains options that are available to all platforms. They enable you to redo<br />

or relaunch the analysis, turn off automatic recalculation, copy the script, or<br />

save the JSL comm<strong>and</strong>s for the analysis. For more information, see Using<br />

JMP.<br />

Normal Contour Ellipsoids<br />

A normal contour ellipsoid is a 3-dimensional ellipse that encompasses a specified portion of points. The<br />

ellipsoid is computed from a contour of the multivariate normal distribution fit to the points. The ellipsoid<br />

is a function of the means, st<strong>and</strong>ard deviations, <strong>and</strong> correlations of variables on the plot. See the Modeling<br />

<strong>and</strong> Multivariate Methods book for details about multivariate normal distributions.

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