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GROUP Variable

Type:	Numeric or character; must match the type of the GROUP= variable used in the GCHART procedure.
Length:	Should match the length of GROUP= variable in the GCHART procedure.
Default:	none
Restriction:	Used only with vertical or horizontal bar charts produced by the GCHART procedure.

group-value

references value(s) of the variable that is identified by the GROUP= option in the GCHART procedure either as a variable name or as an explicit data value. Group-value can be one of the following:

group-variable	the name of a group variable.
group-data-value	a specific numeric data value.
'group-data-value'	a specific character data value.

To annotate all the bars in a horizontal or vertical bar chart, specify a variable name. To annotate a bar chart for a specific value of the GROUP variable, specify a specific value.

Functions

You can use the GROUP variable only with the data coordinate systems 1, 2, 7, and 8, and with these functions:

BAR	PIE	POLY
DRAW	PIECNTR	POLYCONT
LABEL	POINT	SYMBOL
MOVE

Details

Using the GROUP variable is similar to using the X and Y variables with data system coordinates to position graphics elements in a vertical or horizontal bar chart. Using the GROUP Variable to Position a Label in a Bar Chart shows how the GROUP variable works with the SUBGROUP and MIDPOINT variables to label the bars of a vertical bar chart.

Using the GROUP Variable to Position a Label in a Bar Chart

The label showing the number of units that were sold in Dallas in the year 1997 is positioned by the values that are assigned to these Annotate variables:

• GROUP=YEAR (where YEAR is a variable in the GCHART data set)

• MIDPOINT=CITY (where CITY is a variable in the GCHART data set)

• SUBGROUP=ITEM (where ITEM is a variable in the GCHART data set).

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