The subcommand @subcmd{BAR} produces a bar chart.
This subcommand requires that a @var{count-function} be specified (with no arguments) or a @var{summary-function} with a variable @var{var1} in parentheses.
Following the summary or count function, the keyword @subcmd{BY} should be specified and then a catagorical variable, @var{var2}.
The subcommand @subcmd{BAR} produces a bar chart.
This subcommand requires that a @var{count-function} be specified (with no arguments) or a @var{summary-function} with a variable @var{var1} in parentheses.
Following the summary or count function, the keyword @subcmd{BY} should be specified and then a catagorical variable, @var{var2}.