Indeed graphics and categorical data are not obvious bedfellows. A common caricature runs that
To communicate effectively using graphs you must understand the nature of the data
graphs connecting observations by similarity. Both tests require uniqueness of the underlying graph and cannot be directly applied on categorical data.
Bar graphs line graphs
Pie Chart: A graph of the categories of a categorical variable as pieces of a pie where the size of each piece is proportional to the frequency
Ways to chart categorical data. Because the variable is categorical the data in the graph can be ordered any way we want (alphabetical
Categorical data are data sets in which numerical data category (relative frequency table) and the percent bar graph
CLASS data set create a vertical line chart of mean HEIGHT by AGE grouped by SEX and include plot markers. Use the VLINE statement with a categorical variable
graphs connecting observations by similarity. Both tests require uniqueness underlying graph and cannot be directly applied on categorical data. We e.
graph bar — Bar charts. Quick start. Bar graph of percentages of observations for each level of categorical variable catvar1 graph bar over(catvar1).