deduplicate_by: Remove duplicate rows based on specified grouping variables

In misc: Miscellaneous Functions for Data and Geospatial Work

Remove duplicate rows based on specified grouping variables

Description

This function removes duplicate rows from a data frame while keeping the first occurrence of each unique combination of the specified grouping variables.

Usage

deduplicate_by(.data, ...)

Arguments

.data	A data frame or tibble
...	One or more unquoted variable names to group by

Value

A data frame with duplicate rows removed, keeping only the first occurrence for each unique combination of grouping variables

Examples

# Remove duplicates based on a single column
mtcars %>% deduplicate_by(carb)

# Remove duplicates based on multiple columns
mtcars %>% deduplicate_by(carb, mpg)

misc documentation built on April 8, 2026, 9:10 a.m.