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Excel's Formula - sisman

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Part V: Miscellaneous <strong>Formula</strong> Techniques<br />

Figure 18-26: The pivot table, after grouping by years and months.<br />

If you select only Months in the Grouping list box, months in different years combine<br />

together. For example, the January item would display sales for both 2005 and 2006.<br />

Figure 18-27 shows another view of the data, grouped by quarter and by year.<br />

Grouping by time<br />

Figure 18-28 shows a set of data in columns A:B. Each row is a reading from an instrument, taken<br />

at one-minute intervals throughout an entire day. The table has 1,440 rows, each representing<br />

one minute. The pivot table summarizes the data by hour.

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