groupedBar
- BarPlot[] groupedBar(R1 centers, R2 data, double width, string[] legendText = null, Color[] colors = null)
 - BarPlot[] groupedBar(R1 centers, R2 data, R3 lowerErrors, R4 upperErrors, double width, string[] legendText = null, Color[] colors = null)
groupedBar
 if (
isInputRange!R1 && 
isRoR!R2
 && 
isRoR!R3
 && 
isRoR!R4
)
  
 
		plot2killplot
		classesenumsfunctions 
	 
	
Create a grouped bar plot with error bars. lowerErrors and upperErrors must either have the same dimensions as data or be empty.