Contingency table review
In this chapter you'll continue working with the comics dataset introduced in the video. This is a collection of characteristics on all of the superheroes created by Marvel and DC comics in the last 80 years.
Let's start by creating a contingency table, which is a useful way to represent the total counts of observations that fall into each combination of the levels of categorical variables.
Questo esercizio fa parte del corso
Exploratory Data Analysis in R
Istruzioni dell'esercizio
The dataset has been loaded into your workspace as comics.
- Type the name of the dataset to look at the rows and columns of the dataset.
- View the
levels()that thealignvariable can take. - View the
levels()that thegendervariable can take. - Create a contingency table of the same two variables.
Esercizio pratico interattivo
Prova a risolvere questo esercizio completando il codice di esempio.
# Print the comics data
# Check levels of align
levels(___$___)
# Check the levels of gender
# Create a 2-way contingency table