Know your data
Visualize your data – categorical variables
Work with your chart 2
Check yourself 2
19. Indentify variable encoding


While constructing our mosaic plot, we prepared and transformed data in several ways. This time, it might be harder to identify variable encoding, but it's even more important. We need to be sure that we understand what is encoded and what form it takes.

Below, there is an image of our mosaic plot and the frequency tables we used to prepare the data. Have a look at it before you move on to the exercise.

Variable Encoding