PIE Subcommand (GRAPH command)
PIE creates
pie charts. A pie chart can be defined by a single function and a
single BY variable or by multiple
summary functions and no BY variable.
A pie chart divides a circle into slices. The size of each slice indicates
the value of the category relative to the whole. Cumulative functions
(CUPCT, CUFREQ, and CUSUM) are inappropriate for pie charts but are not prohibited. When specified,
all cases except those in the last category are counted more than
once in the resulting pie.