Changing the histogram report in a histogram

To change the histogram report that is used to generate a histogram:

Click on the Histogram toolbar, or right-click the histogram pane and select Format Histogram. The Format Histogram dialog appears.
Click the Details tab.
Select the histogram report that you want to use in the Report field. Histogram reports contain all the information required to generate the histogram, including display options and the resource definition graphs to be included. All the existing histogram reports in the project are listed. Select one of these, or click New to create a new histogram report.

Make sure that the histogram report contains information relevant to what you are graphing. If you are graphing task work, you should select a histogram report that includes the AllocatedWork generator, against which no resource has been specified; if you are graphing the days on which activities are scheduled, you should select a histogram report that includes the Allocation generator, against which no resource has been specified.

Once you have made your selection, the histogram is redrawn according to the new histogram report.

Alternatively, click on the Histogram toolbar and select the histogram report that you want to use.