Relating Categorical Variables
Introduction to Categorical Variable Links
What about categorical variables like gender, industry, or share category? You cannot
do correlational type analyses on these, because the categories have no natural order
from low to high. However, you can link two or more categorical variables to each
other and also link categorical variables to continuous or ordinal.
Linking Categorical Variables Together: Crosstabs
We use contingency tables to link two or more categorical variables together.
For instance, in the Accu-Phi case study you may wish to associate license and size.
This analysis would tell you the number and percentage of premium versus freeware
users in different size bands of customer. Figure 8.8 ...
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