Faceting for subplots in R Programming - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to create a scatter plot with facets by the variable 'cyl'.

R Programming

library(ggplot2)
ggplot(mtcars, aes(x = wt, y = mpg)) + geom_point() + facet_[1](~ cyl)

Drag options to blanks, or click blank then click option'

Afacet

Bgrid

Cwrap

Dplot

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'facet_grid' instead of 'facet_wrap' when only one variable is used.

Misspelling the function name.

The facet_wrap function creates subplots (facets) wrapped by the variable specified.

2fill in blank

medium

Complete the code to facet the plot by 'cyl' and 'gear' using a grid layout.

R Programming

ggplot(mtcars, aes(x = wt, y = mpg)) + geom_point() + facet_grid([1] ~ [2])

Drag options to blanks, or click blank then click option'

Acyl

Bgear

Cmpg

Dwt

Attempts:

3 left

💡 Hint

Common Mistakes

Swapping the order of variables.

Using variables not in the dataset.

facet_grid takes two variables separated by ~ to create a grid of subplots by rows and columns.

3fill in blank

hard

Fix the error in the code to facet by 'cyl' using facet_wrap.

R Programming

ggplot(mtcars, aes(x = wt, y = mpg)) + geom_point() + facet_wrap(~ [1])

Drag options to blanks, or click blank then click option'

Agear

Bcyl

Ccyls

Dwt

Attempts:

3 left

💡 Hint

Common Mistakes

Using a variable name that does not exist in the dataset.

Adding extra characters to the variable name.

The variable name must exactly match the dataset column. 'cyl' is correct; 'cyls' is not a column.

4fill in blank

hard

Fill both blanks to facet the plot by 'cyl' in rows and 'am' in columns.

R Programming

ggplot(mtcars, aes(x = hp, y = mpg)) + geom_point() + facet_grid([1] ~ [2])

Drag options to blanks, or click blank then click option'

Acyl

Bam

Cgear

Dwt

Attempts:

3 left

💡 Hint

Common Mistakes

Swapping the variables in the wrong order.

Using variables not present in the dataset.

facet_grid uses the first variable for rows and the second for columns. Here, 'cyl' is rows and 'am' is columns.

5fill in blank

hard

Fill all three blanks to create a faceted plot with 'cyl' wrapped, color by 'gear', and size by 'hp'.

R Programming

ggplot(mtcars, aes(x = wt, y = mpg, color = [1], size = [2])) + geom_point() + facet_wrap(~ [3])

Drag options to blanks, or click blank then click option'

Agear

Bhp

Ccyl

Dam

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up the variables for color and size.

Using the wrong variable for faceting.

The color aesthetic is set to 'gear', size to 'hp', and faceting is done by 'cyl' using facet_wrap.