The FREQ Procedure

Statistical procedures use ODS Graphics to create graphs as part of their output. ODS Graphics is described in detail in Chapter 24, 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 24, 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 24, Statistical Graphics Using ODS.

When ODS Graphics is enabled, you can request specific plots by specifying PLOTS= option in the TABLES statement. To produce a frequency plot or cumulative frequency plot, you must specify the FREQPLOT or CUMFREQPLOT plot-request, respectively, in the PLOTS= option. To produce a mosaic plot, you must specify the MOSAICPLOT plot-request in the PLOTS= option. You can also produce frequency, cumulative frequency, and mosaic plots by specifying the PLOTS=ALL option. By default, PROC FREQ produces all other plots that are associated with the analyses that you request in the TABLES statement. You can suppress the default plots and request specific plots by using the PLOTS(ONLY)= option. For more information, see the description of the PLOTS= option.

PROC FREQ assigns a name to each graph that it creates by using ODS Graphics. You can use these names to refer to the graphs. Table 23 lists the names of the graphs that PROC FREQ generates together with their descriptions, their PLOTS= options (plot-requests), and the TABLES statement options that are required to produce the graphs.

Table 23: Graphs Produced by PROC FREQ

ODS Graph Name	Description	PLOTS= Option	TABLES Statement Option
AgreePlot	Agreement plot	AGREEPLOT	AGREE ( table)
CumFreqPlot	Cumulative frequency plot	CUMFREQPLOT	One-way table request
DeviationPlot	Deviation plot	DEVIATIONPLOT	CHISQ (one-way table)
FreqPlot	Frequency plot	FREQPLOT	Any table request
KappaPlot	Kappa plot	KAPPAPLOT	AGREE ( table)
MosaicPlot	Mosaic plot	MOSAICPLOT	Two-way or multiway table request
ORPlot	Odds ratio plot	ODDSRATIOPLOT	MEASURES, OR,
			or RELRISK ( table)
RelRiskPlot	Relative risk plot	RELRISKPLOT	MEASURES or RELRISK
			( table)
RiskDiffPlot	Risk difference plot	RISKDIFFPLOT	RISKDIFF ( table)
WtKappaPlot	Weighted kappa plot	WTKAPPAPLOT	AGREE ( table, r > 2)