Crystal Reports for Rational Application Developer Designer Guide
Where to place a chart
The placement of a chart determines which data is displayed and where it is printed. For example, a chart placed in the Report Header section includes the data for the entire report, while a chart that is placed in a Group Header or in a Group Footer section displays only the group specific data.
Note: If your report contains subreports, you can place charts in those subreports as well. For more information, see Subreports.