To create a scatter
plot matrix:
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-
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Select the predefined
matrix graph that you want to use. You can choose from two different
types:
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NxN matrix: The first four predefined
matrix graphs in the Graph Gallery create an NxN matrix. This matrix
uses one list of variables. It creates a square grid of cells using
the list of N variables along the rows and columns.
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MxN matrix: The last two graphs
in the Graph Gallery create an MxN matrix. This type of matrix crosses
two lists of variables and creates a rectangular matrix without any
diagonal cells.
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Click
OK. The
Assign Data dialog box appears.
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Specify the SAS library
and data set you want to use for the plot by selecting the appropriate
items from the
Library and
Data
Set list boxes.
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In the
Roles section, select the check box for each variable that you want in
the graph. If you want to select all items, then select the check
box in the heading.
For an MxN matrix, select
the variables from two lists, one for column variables and another
for row variables.
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(NxN matrices only)
In the
Diagonal Cells section, select the
plot types for the diagonal cells. You can choose a histogram and
up to two density plots.
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If you want an ellipse
to appear in the cells, do the following:
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Check the
Ellipse check box.
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Select either
Mean or
Predicted.
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You can either change
the
Alpha value or keep the default value.
For an NxN matrix, the
ellipse appears in the non-diagonal cells.
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If you want a more descriptive
name for the plot, enter the name in the
Name text box. This name identifies the plot in the
Assign
Data dialog box, in the
Cell Properties dialog box, and other places within the application.
By default, the designer
uses generic names for each plot. It is good practice to assign a
descriptive name that indicates a response variable or some identifying
characteristic of the plot.
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Here is an MxN rectangular
matrix:
