What's in a number?
Turn your attention to the variable called number. Read more about it by pulling up the help file with ?email.
To explore the association between this variable and spam, select and construct an informative plot. For illustrating relationships between categorical variables, you've seen
- Faceted bar charts
- Side-by-side bar charts
- Stacked and normalized bar charts.
Let's practice constructing a faceted bar chart.
This exercise is part of the course
Exploratory Data Analysis in R
Exercise instructions
- Reorder the levels of
numberso that they preserve the natural ordering of"none", then"small", then"big", saving to anumber_reorderedcolumn. - Construct a faceted bar chart of the association between
numberandspam.
Hands-on interactive exercise
Have a go at this exercise by completing this sample code.
# Reorder levels
email$number_reordered <- ___
# Construct plot of number_reordered
___(email, ___
___
___