arrange() for sorting in R Programming - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to sort the data frame df by the column age in ascending order using arrange().

R Programming

library(dplyr)
sorted_df <- df %>% arrange([1])
print(sorted_df)

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

Aage

Bdesc(age)

Cage()

Dsort(age)

Attempts:

3 left

💡 Hint

Common Mistakes

Using desc(age) which sorts in descending order.

Using age() which is not a valid function here.

The arrange() function sorts the data frame by the specified column. Using age sorts it in ascending order.

2fill in blank

medium

Complete the code to sort the data frame df by the column score in descending order using arrange().

R Programming

library(dplyr)
sorted_df <- df %>% arrange([1])
print(sorted_df)

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

Ascore

Bscore()

Cdesc(score)

Dsort(score)

Attempts:

3 left

💡 Hint

Common Mistakes

Using just score which sorts ascending.

Using score() which is invalid.

To sort in descending order, wrap the column name with desc() inside arrange().

3fill in blank

hard

Fix the error in the code to correctly sort df by height in ascending order.

R Programming

library(dplyr)
sorted_df <- df %>% arrange([1])
print(sorted_df)

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

Aheight

Bheight()

Cdesc(height)

Dsort(height)

Attempts:

3 left

💡 Hint

Common Mistakes

Using height() which is not valid syntax.

Using desc(height) which sorts descending.

The correct way to sort ascending is to use the column name directly without parentheses or functions.

4fill in blank

hard

Fill both blanks to sort df first by age ascending, then by score descending.

R Programming

library(dplyr)
sorted_df <- df %>% arrange([1], [2])
print(sorted_df)

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

Aage

Bdesc(score)

Cscore

Ddesc(age)

Attempts:

3 left

💡 Hint

Common Mistakes

Using score instead of desc(score) for descending order.

Using desc(age) which reverses the first sort.

Use age for ascending sort first, then desc(score) for descending sort second.

5fill in blank

hard

Fill all three blanks to sort df by gender ascending, then age descending, then score ascending.

R Programming

library(dplyr)
sorted_df <- df %>% arrange([1], [2], [3])
print(sorted_df)

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

Agender

Bdesc(age)

Cscore

Ddesc(score)

Attempts:

3 left

💡 Hint

Common Mistakes

Using desc(score) instead of score for ascending order.

Not using desc() for age to get descending order.

Sort by gender ascending, then age descending using desc(age), then score ascending.