The SPC Procedure

PCHART Statement

PCHART < / options>;

The PCHART statement produces control charts for the proportions of nonconforming items in subgroup samples. Table 20.7 lists the options that you can specify in a PCHART statement. For detailed descriptions of these options, see the section Dictionary of Options.

Table 20.7: PCHART Statement Options

Option	Description
ALLN	Includes all subgroups in the analysis, regardless of sample size
EXCHART	Produces results only for charts in which exceptions occur
LIMITN=	Specifies the nominal sample size for fixed control limits
NO3SIGMACHECK	Applies tests for special causes when control limits other than limits are in effect
NOPRINT	Suppresses ODS output
OUTLIMITS=	Creates an output data table that contains control limits
OUTTABLE=	Creates an output data table that contains subgroup summary statistics and control limits
SIGMAS=	Specifies the width of the control limits in terms of a multiple of the standard error of the subgroup summary statistic
SUBGROUPN=	Specifies a variable in the input data table that contains subgroup sample sizes
TEST2RUN=	Specifies the length of the pattern for Test 2
TEST3RUN=	Specifies the length of the pattern for Test 3
TESTNSTD	Applies tests for special causes to standardized chart statistics
TESTOVERLAP	Performs tests for special causes on overlapping patterns of points
TESTS=	Requests tests for special causes for the p chart

Last updated: December 21, 2018