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SET_BARPER()                                                       T_EXAM09
   Sets the width of the bars on the bar charts.

   Syntax
         nPercentOfTick = SET_BARPER([nPercentOfTick])

   Arguments
         OPTIONAL PARAMETERS
         nPercentOfTick Defines the width of the bars on a bar chart in
                        percent of tick distance.

   Returns
         nPercentOfTick Returns the width of the bar in percent.

   Description
         SET_BARPER() sets the width of the bars on the bar charts. Must be a
         number from 0.1 to 1.00. Otherwise, the bar width is 75% (0.75) of
         the tick distance.