Introduction to Producing Charts to Summarize Variables

Purpose

Charts, like plots, provide a technique to summarize data graphically. You can use a chart to show the values of a single variable or several variables. A bar chart also enables you to graphically examine the distribution of the values of a variable.
In this section, you will learn how to create the following:
  • vertical bar charts
  • horizontal bar charts
  • pie charts
  • block charts
  • high-resolution histograms and comparative histograms
The examples range in complexity from simple frequency bar charts to more complex charts that group variables and include summary statistics.

Prerequisites

To understand the examples in this section, you should be familiar with ...

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