The CLUSTER Procedure
ODS Graphics
Statistical procedures use ODS Graphics to create graphs as part of their output. ODS Graphics is described in detail in Chapter 21: Statistical Graphics Using ODS.
Before you create graphs, ODS Graphics must be enabled (for example, by specifying the ODS GRAPHICS ON statement). For more information about enabling and disabling ODS Graphics, see the section Enabling and Disabling ODS Graphics in Chapter 21: Statistical Graphics Using ODS.
The overall appearance of graphs is controlled by ODS styles. Styles and other aspects of using ODS Graphics are discussed in the section A Primer on ODS Statistical Graphics in Chapter 21: Statistical Graphics Using ODS.
PROC CLUSTER can produce plots of the cubic clustering criterion, pseudo F, and pseudo 
statistics, and a dendrogram. To plot a statistic, you must ask for it to be computed via one or more of the CCC, PSEUDO,
or PLOT options.
You can reference every graph produced through ODS Graphics with a name. The names of the graphs that PROC CLUSTER generates are listed in Table 31.5, along with the required statements and options.
Table 31.5: Graphs Produced by PROC CLUSTER
|
ODS Graph Name |
Plot Description |
Statement & Option |
|---|---|---|
|
CubicClusCritPlot |
Cubic clustering criterion for the number of clusters |
PROC CLUSTER PLOTS=CCC |
|
PseudoFPlot |
Pseudo F criterion for the number of clusters |
PROC CLUSTER PLOTS=PSF |
|
PseudoTSqPlot |
Pseudo |
PROC CLUSTER PLOTS=PST2 |
|
CccAndPsTSqPlot |
Cubic clustering criterion and pseudo |
PROC CLUSTER PLOTS=(CCC PST2) |
|
CccAndPsfPlot |
Cubic clustering criterion and pseudo F |
PROC CLUSTER PLOTS=(CCC PSF) |
|
CccPsfAndPsTSqPlot |
Cubic clustering criterion, pseudo F, and pseudo |
PROC CLUSTER PLOTS=ALL |
|
Dendrogram |
Dendrogram |
PROC CLUSTER |