distinct: Select distinct/unique rows in data.table

In tidyft: Fast and Memory Efficient Data Operations in Tidy Syntax

Select distinct/unique rows in data.table

Description

Analogous function for distinct in dplyr

Usage

distinct(.data, ..., .keep_all = FALSE)

Arguments

.data	data.table
...	Optional variables to use when determining uniqueness. If there are multiple rows for a given combination of inputs, only the first row will be preserved. If omitted, will use all variables.
.keep_all	If TRUE, keep all variables in data.table. If a combination of ... is not distinct, this keeps the first row of values.

Value

data.table

See Also

distinct

Examples

 a = as.data.table(iris)
 b = as.data.table(mtcars)
 a %>% distinct(Species)
 b %>% distinct(cyl,vs,.keep_all = TRUE)

tidyft documentation built on Sept. 30, 2024, 9:40 a.m.