NORMAL Subcommand (SPCHART command)

NORMAL controls which normal curves are superimposed on a process capability chart. It only applies when the chart specification is /CPCHART. Specify one of the following values:

CAPABILITY. Superimposes a normal curve with mean equal to the process mean and standard deviation equal to the capability sigma. This is the default.

PERFORMANCE . Superimposes a normal curve with mean equal to the process mean and standard deviation equal to the process standard deviation.

BOTH . Superimposes both the CAPABILITY and PERFORMANCE normal curves.

NONE. Specifies that no normal curves will be displayed.