BOXCHART Statement: SHEWHART Procedure

You can specify axis labels by assigning labels to particular variables in the input data set, as summarized in the following table:

Axis	Input Data Set	Variable
Horizontal	all	subgroup-variable
Vertical (box chart)	DATA=	process
Vertical (box chart)	HISTORY=	subgroup mean variable
Vertical (box chart)	TABLE=	_SUBX_

Note that if you specify the CONTROLSTAT=MEDIAN option, you should assign the label to the subgroup median variable in a HISTORY= data set or to the variable _SUBMED_ in an TABLE= data set.

If you specify the TRENDVAR= option, you can provide distinct labels for the vertical axes of the box and trend charts by breaking the vertical axis into two parts with a split character. Specify the split character with the SPLIT= option. The first part labels the vertical axis of the box chart, and the second part labels the vertical axis of the trend chart.

For an example, see Labeling Axes.