Launch the Scatterplot Matrix platform by selecting Graph > Scatterplot Matrix.
Figure 11.4 The Scatterplot Matrix Launch Window
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If you assign variables to the Y, Columns role only, they appear on both the horizontal and vertical axes.
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If you assign variables to both the Y, Columns and X role, then the Y, Columns variables appear on the vertical axis. The X variables appear on the horizontal axis. This approach enables you to produce rectangular matrices, or matrices that have different, yet overlapping, sets of variables forming the axes of the matrix.
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If you assign a variable to the Group role, you can add shaded density ellipses for each level of the Group variable. See Example Using a Grouping Variable.
This option produces a separate scatterplot matrix for each level of the By variable. If two By variables are assigned, a separate graph for each possible combination of the levels of both By variables is produced.
The Matrix Format can be one of three arrangements: Upper Triangular, Lower Triangular, or Square. See Change the Matrix Format.