find_duplicates: Find duplicate observations in a data frame by a identifier.

In pcctc/croquet: Miscellaneous Operations for PCCTC

Find duplicate observations in a data frame by a identifier.

Description

Find duplicate observations in a data frame by a identifier.

Usage

find_duplicates(x, ..., sort = FALSE, name = "n")

Arguments

x	A data frame, data frame extension (e.g. a tibble), or a lazy data frame (e.g. from dbplyr or dtplyr).
...	<data-masking> Variables to group by.
sort	If TRUE, will show the largest groups at the top.
name	The name of the new column in the output. If omitted, it will default to n. If there's already a column called n, it will use nn. If there's a column called n and nn, it'll use nnn, and so on, adding ns until it gets a new name.

Examples

x <- data.frame(subject = c("a", "a", "b", "c", "c"))
find_duplicates(x, subject)
find_duplicates(mtcars, vs, am)

pcctc/croquet documentation built on Aug. 10, 2024, 7:04 a.m.