SGSCATTER Procedure
MATRIX Statement
Creates a scatter plot matrix.
| Example: | Creating a Scatter Plot Matrix |
Syntax
MATRIX numeric-variable-1 numeric-variable-2 < ... numeric-variable-n> </ options>;
Summary of Optional Arguments
specifies a variable that is used to create data
labels for each point in the plot.
adds graphs to the diagonal cells of the plot matrix.
Adds a confidence or prediction ellipse to each
cell that contains a scatter plot.
specifies a classification variable to divide the
values into groups.
specifies the appearance of the legend for the scatter
plot.
specifies the appearance of the markers in the plot.
removes the legend from the graph.
specifies whether the diagonal starts in the top
left corner or the bottom left corner.
specifies the degree of transparency for the plot
components.
Optional Arguments
- DATALABEL= variable
- specifies a variable that is used to create data labels for each point in the plot.
- DIAGONAL= (graph-list)
- adds graphs to the diagonal cells of the plot matrix. If you do not specify the DIAGONAL option, the diagonal cells contain the variable names.
- ELLIPSE <= (options)>
- Adds a confidence or prediction ellipse to each
cell that contains a scatter plot.
- ALPHA= numeric-value
-
specifies the confidence level for the ellipse. Specify a number between 0.00 (100% confidence) and 1.00 (0% confidence).Default:.05
- TYPE= MEAN | PREDICTED
-
specifies the type of ellipse. MEAN specifies a confidence ellipse for the population mean. PREDICTED specifies a prediction ellipse for a new observation. Both ellipse types assume bivariate normal distribution.Default:PREDICTED
Interaction:The GROUP option does not affect the creation of ellipses. The SGSCATTER procedure always uses all of the data points to calculate the confidence or prediction ellipse.
- GROUP= variable
- specifies a classification variable to divide the values into groups. If a fit line is requested, then the GROUP= variable is also applied to the fit plot unless you specify the NOGROUP suboption in the option for the fit plot.
- LEGEND= (options)
- specifies the appearance of the legend for the scatter
plot.
- DOWN= n
-
specifies the number of rows in the legend.Interaction:If you specify both the ACROSS= and DOWN= suboptions, then the DOWN= suboption has no effect.
- MARKERATTRS= style-element <(options)> | (options)
- specifies the appearance of the markers in the plot. You can specify the
appearance by using a style element or by using suboptions. If you
specify a style element, you can also specify suboptions to override
specific appearance attributes.
- COLOR= color
-
specifies the color of the markers. You can specify colors using the same color schemes that are supported by
SAS/GRAPH software. For more information, see Color-Naming Schemes in SAS/GRAPH: Reference.Default:For ungrouped data, the default color is specified by the ContrastColor attribute of the GraphDataDefault style element in the current style. For grouped data, the default color is specified by the ContrastColor attribute of the GraphData1 ... GraphDatan style elements in the current style.
- SIZE= n <units>
-
specifies the size of the markers. You can also specify the unit of measurement. The default unit is pixels. For a list of measurement units that are supported, see Units of Measurement.Default:The default marker size is specified by the MarkerSize attribute of the GraphDataDefault style element in the current style.
- SYMBOL= symbol-name
-
specifies the symbol for the markers. For a list of valid marker symbols, see Marker Symbols.Default:For ungrouped data, the default marker symbol is specified by the MarkerSymbol attribute of the GraphDataDefault style element in the current style. For grouped data, the default marker symbol is specified by the MarkerSymbol attribute of the GraphData1 ... GraphDatan style elements in the current style.