Chart Sub

 Action
 Draws bar, column, and line charts.


 Syntax
 Chart env, cat$(), value!(), n%

 Remarks
 The Chart procedure uses the following arguments.

 env
 ---
 A variable dimensioned as type ChartEnvironment.

 cat$()
 ------
 A one-dimensional string array of category names.

 value!()
 --------
 A one-dimensional single-precision array that contains the
 chart data.

 n%
 --
 An integer that contains the number of data items in value!().


 The value!() and cat$() arrays must have a lower bound of 1.
 The AnalyzeChart routine uses the same arguments as Chart. AnalyzeChart
 analyzes and defines parameters in the chart environment based on the input
 data, but it does not print a chart on the screen.