Bar Chart Tutorial

BRIDGES provides a basic set of bar charts to represent categorical data as a series of rectangular bars with length proportional to the values they represent.

Series in a bar chart provides data for a number of categories (sometimes called bins). Categories are defined using setCategories() and the series are added using addDataSeries(). The series are rendered in the order in which they were added. Once a series has been added, it can not be modified.

One should always define the categories before adding data. Changing the categories after series have been added will throw exceptions; adding series with different number of values than the number of categories will throw an exception.

The Bar charts can have a title, subtitle. The charts can be horizontal or vertically oriented, using setBarOrientation().

A tooltip indicating the value of a series in a particular bin is displayed by hovering on a bar. One can append a string to the value using setTooltipSuffix() to specify units in the tooltip if desired.

This tutorial will illustrate the use of bar charts for some datasets

See also

See complete documentation of bar charts for C++, Java , or Python

Code Example

Here is the code for this tutorial. The expected visualization follows that.

If you follow the URL given to you when the application runs, it will get to to the Bridges webpage that shows your output (also shown below). You do not need to be logged into your BRIDGES account to see the output. If you are logged into your account, the output will show up in your gallery.