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BIRT: A Field Guide to Reporting by Jane Tatchell, Nola Hague, Diana Peh

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Chapter 18. Displaying Data in Charts

You use the same kind of data sources for a chart as you do for other report items. You can open a connection to a data source and create the data set for a chart from the Data Explorer. The procedure for creating a data set for a chart is basically the same as that for a report. You learned to create a data set in Task 4:, “Build a data set” of the tutorial at the beginning of this book.

How you retrieve and arrange data in a chart can be different from the way that you use data elsewhere in BIRT. As you saw in the chart tutorial, you provide expressions that organize the data into visual elements, such as bars or lines. After you preview the chart, you may think that you need additional or different data ...

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