How to Use arrange in dplyr for Sorting Data Frames

Use arrange() from the dplyr package to sort rows of a data frame by one or more columns. By default, it sorts in ascending order, and you can use desc() inside arrange() to sort in descending order.

Syntax

The basic syntax of arrange() is:

• arrange(data, column1, column2, ...): Sorts data by column1, then column2, etc., in ascending order.
• desc(column): Use inside arrange() to sort column in descending order.

r

arrange(data_frame, column1, column2, ...)
arrange(data_frame, desc(column1))

Example

This example shows how to sort a data frame by one column ascending and another descending.

r

library(dplyr)

# Create example data frame
people <- data.frame(
  name = c("Alice", "Bob", "Carol", "Dave"),
  age = c(25, 30, 25, 35),
  score = c(88, 95, 82, 90)
)

# Sort by age ascending, then score descending
sorted_people <- arrange(people, age, desc(score))
print(sorted_people)

Output

   name age score
1 Alice  25    88
2 Carol  25    82
3   Bob  30    95
4  Dave  35    90

Common Pitfalls

Common mistakes when using arrange() include:

• Forgetting to load dplyr with library(dplyr).
• Using arrange() without specifying the data frame first.
• Not using desc() to sort columns in descending order.
• Expecting arrange() to modify the original data frame without assignment.

r

library(dplyr)

# Wrong: missing data frame
# arrange(age)

# Wrong: ascending order only
arrange(people, score)

# Right: descending order
arrange(people, desc(score))

Quick Reference

Function	Description	Example
arrange(data, col1, col2)	Sort data by columns ascending	arrange(df, age, score)
arrange(data, desc(col))	Sort data by column descending	arrange(df, desc(score))
desc(col)	Wrap column to sort descending	desc(age)
library(dplyr)	Load dplyr package	library(dplyr)

Key Takeaways

Use arrange() to sort data frames by one or more columns in ascending order by default.

Use desc() inside arrange() to sort columns in descending order.

Always load dplyr with library(dplyr) before using arrange().

arrange() returns a new sorted data frame; assign it to save changes.

You can sort by multiple columns by listing them in arrange().