Component Bar Chart

A sub-divided or component bar chart is used to represent data in which the total magnitude is divided into different or components.

In this diagram, first we make simple bars for each class taking the total magnitude in that class and then divide these simple bars into parts in the ratio of various components. This type of diagram shows the variation in different components within each class as well as between different classes. A sub-divided bar diagram is also known as a component bar chart or stacked chart.

Example:

The table below shows the quantity in hundred kgs of wheat, barley and oats produced in a certain form during the years 1991 to 1994.

 Years Wheat Barley Oats 1991 34 18 27 1992 43 14 24 1993 43 16 27 1994 45 13 34

Construct a component bar chart to illustrate this data.

Solution:

To make the component bar chart, first of all we have to take a year-wise total production.

 Years Wheat Barley Oats Total 1991 34 18 27 79 1992 43 14 24 81 1993 43 16 27 86 1994 45 13 34 92

The required diagram is given below: