distinct_dt {tidyfst}

Select distinct/unique rows in data.frame

Description

Select only unique/distinct rows from a data frame.

Usage

distinct_dt(.data, ..., .keep_all = FALSE, fromLast = FALSE)

Arguments

.data

data.frame

...

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.frame. If a combination of ... is not distinct, this keeps the first row of values.

fromLast

Logical indicating if duplication should be considered from the reverse side. Defaults to FALSE.

Value

data.table

See Also

distinct

Examples

iris %>% distinct_dt()
iris %>% distinct_dt(Species)
iris %>% distinct_dt(Species,.keep_all = TRUE)
mtcars %>% distinct_dt(cyl,vs)
mtcars %>% distinct_dt(cyl,vs,.keep_all = TRUE)
mtcars %>% distinct_dt(cyl,vs,.keep_all = TRUE,fromLast = TRUE)