The GAREABAR procedure
produces a chart based on the values of a chart
variable, a width variable, and a sum calculation variable specified by the SUMVAR= option.
The chart variable can be either character or numeric. All values
of the chart variable are treated as discrete. The chart values are
displayed in data order. PROC GAREABAR does not calculate a midpoint.

For the VBAR statement,
the width variable defines the width of the bar along the horizontal
axis. The SUMVAR= variable determines the height of the bar on the
vertical axis.

For the HBAR statement,
the width variable defines the width of each bar on the vertical axis.
The SUMVAR= variable determines the length of the bar on the horizontal
axis.

The width variable,
the SUMVAR= option variable, and the SUBGROUP= option variable can
be calculated, and displayed as a percentage of the total or as a
sum. The default is sum.

An example using
the SUBGROUP option is shown in Area Bar Chart with Subgroups; Using the RSTAT= option and the WSTAT= option to Calculate Statistics as Percentages.