Bar

Bar charts are useful for discovering trends over time by displaying data in thin, solid columns. Related data sets can be assembled in groups (series) for easy comparison. If you need to show time-oriented changes in data, or if you want to make comparisons between X and Y values that are not directly related in your data source, you must use an XY Bar chart instead. XY Bar charts cannot be created through action sequences with the JFreeChart (ChartComponent) engine at this time, but you can create one through Report Designer. The XY Step and XY StepArea chart types, which can be generated through action sequences, are similar to XY Bar and may be suitable substitutes for the data relationships that you want to show.

An example of a bar chart showing several chart properties.