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How to group categories on the x-axis


Figure 15-1 Grouping category data by month

Figure 15-1  Grouping category data by month
In Type, select Text, Numeric, or DateTime. If you select DateTime, you can specify the units to use to form the groups, such as Months.
In Interval, select a number that represents the size of the groups to create. For example, to group three-row sequences of text data, select 3. To group numeric data in sections of four, select 4.
In Aggregate Expression, select the function to use to aggregate the data in the group. You can select Average, Sum, Count, Distinct Count, First, Last, Minimum, and Maximum.

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