Displaying Data in Charts : Grouping optional Y value data
 
Grouping optional Y value data
You group Y values for different reasons, depending on the chart type, as described in Table 16‑3.
Table 16‑3 Using optional Y grouping for different chart types  
Chart type
Reason for using optional Y grouping
Bar, cone, line, pyramid, tube
To summarize data into multiple sets of risers in the chart.
Area, difference
To summarize data into multiple areas in the chart.
Bubble
To identify bubbles using the legend.
Meter
To plot multiple meters.
Alternate meter subtype
To plot multiple dials.
Pie
To plot multiple pies.
Scatter
To plot multiple (x-y) value pairs.
Stock
To plot multiple sets of candlesticks.
To group y-axis values, you use Optional Y Grouping in the Select Data page of the chart builder.