Basic Analysis and Graphing - SAS

Chapter 20 Creating Scatterplot Matrices 487
Example of a Scatterplot Matrix
Table 20.1 Description of the Scatterplot Matrix Launch Window
Y, Columns, X • If you assign variables to the Y, Columns role only, they appear on both
the horizontal and vertical axes.
• 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.
Group
By
Matrix Format
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” on page 490.
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” on
page 487.
For more information about the launch window, see Using JMP.
Change the Matrix Format
The Matrix Format can be one of three arrangements: Upper Triangular, Lower Triangular, or Square.