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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.

Cet exercice fait partie du cours

Exploratory Data Analysis in R

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Instructions

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 the align variable can take.
  • View the levels() that the gender variable can take.
  • Create a contingency table of the same two variables.

Exercice interactif pratique

Essayez cet exercice en complétant cet exemple de code.

# Print the comics data


# Check levels of align
levels(___$___)

# Check the levels of gender


# Create a 2-way contingency table
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