Scatter plots (geom_point) in R Programming - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to create a scatter plot using ggplot2.

R Programming

ggplot(data = mtcars, aes(x = wt, y = mpg)) + geom_[1]()

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

Apoints

Bpoint

Cgeom_point

Dgeom_points

Attempts:

3 left

💡 Hint

Common Mistakes

Writing the full function name 'geom_point' inside the blank causes syntax error.

Using 'points' or 'geom_points' which are not valid ggplot2 functions.

The correct function to add points in ggplot2 is geom_point(). You only write point inside geom_ to complete the function name.

2fill in blank

medium

Complete the code to map the color aesthetic to the 'cyl' variable.

R Programming

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

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

Acyl

Bmpg

Cwt

Dgear

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'mpg' or 'wt' which are mapped to x and y axes, not color.

Using 'gear' which is unrelated to this color mapping.

To color points by the number of cylinders, use the variable cyl inside the aes() function.

3fill in blank

hard

Fix the error in the code by completing the function name correctly.

R Programming

ggplot(mtcars, aes(x = wt, y = mpg)) + geom_[1]()

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

Ageom_point

Bpoints

Cgeom_points

Dpoint

Attempts:

3 left

💡 Hint

Common Mistakes

Including 'geom_' inside the blank causes syntax errors.

Using plural forms like 'points' or 'geom_points' which are invalid.

The correct function to add points is geom_point(). You only fill in 'point' after 'geom_'.

4fill in blank

hard

Fill both blanks to create a scatter plot with size mapped to 'hp' and shape mapped to 'cyl'.

R Programming

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

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

Ahp

Bmpg

Ccyl

Dwt

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up variables or using x/y variables for size or shape.

Using variables not present in mtcars.

To map size to horsepower, use hp. To map shape to cylinders, use cyl.

5fill in blank

hard

Fill all three blanks to create a scatter plot with color mapped to 'gear', size to 'hp', and shape to 'cyl'.

R Programming

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

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

Acyl

Bhp

Cgear

Dmpg

Attempts:

3 left

💡 Hint

Common Mistakes

Using the same variable for multiple aesthetics.

Using variables not in the mtcars dataset.

Color is mapped to 'gear', size to 'hp', and shape to 'cyl' to create a detailed scatter plot.