# How to Create Side-by-Side Boxplots in R (With Examples)

Side-by-side boxplots can be used to quickly visualize the similarities and differences between different distributions.

This tutorial explains how to create side-by-side boxplots in both base R and ggplot2 using the following data frame:

```#create data frame
df <- data.frame(team=rep(c('A', 'B', 'C'), each=8),
points=c(5, 5, 6, 6, 8, 9, 13, 15,
11, 11, 12, 14, 15, 19, 22, 24,
19, 23, 23, 23, 24, 26, 29, 33))

#view first 10 rows

team points
1     A      5
2     A      5
3     A      6
4     A      6
5     A      8
6     A      9
7     A     13
8     A     15
9     B     11
10    B     11```

### Side-by-Side Boxplots in Base R

The following code shows how to create side-by-side boxplots in base R:

```#create vertical side-by-side boxplots
boxplot(df\$points ~ df\$team,
col='steelblue',
main='Points by Team',
xlab='Team',
ylab='Points')
``` We can use the argument horizontal=TRUE to display the boxplots horizontally instead of vertically:

```#create horizontal side-by-side boxplots
boxplot(df\$points ~ df\$team,
col='steelblue',
main='Points by Team',
xlab='Points',
ylab='Team',
horizontal=TRUE) ``` ### Side-by-Side Boxplots in ggplot2

The following code shows how to create vertical side-by-side boxplots in ggplot2:

```library(ggplot2)

#create vertical side-by-side boxplots
ggplot(df, aes(x=team, y=points, fill=team)) +
geom_boxplot() +
ggtitle('Points by Team') ``` And we can use the coord_flip() argument to display the boxplots horizontally instead of vertically:

```library(ggplot2)

#create horizontal side-by-side boxplots
ggplot(df, aes(x=team, y=points, fill=team)) +
geom_boxplot() +
coord_flip() +
ggtitle('Points by Team') ``` 