Producing High-Quality Figures Using SAS/GRAPH and ODS Graphics Procedures

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8

Bar Charts

8.1 Introduction

A bar chart is a graph with rectangular bars with lengths that are propor-

tional to the values that they represent. The bars can be plotted vertically or

horizontally (Wikipedia). A bar chart is an alternative to line plots to display

the mean or midpoint response when the response is categorized by a dis-

crete value. Bar charts are usually used to compare a response value among

specic categories.

Bar charts have applications in many areas, including clinical research,

agriculture, and education.

8.2 Application Examples

To illustrate the application and production of bar charts, two examples

with three sampl ...