n_distinct {plyranges} | R Documentation

## Compute the number of distinct unique values in a vector or List

### Description

This is a wrapper to `length(unique(x))` or `lengths(unique(x))` if `x` is a List object

### Usage

    n_distinct(var)

### Arguments

`var` | a vector of values

### Value

an integer vector

### Examples

    x <- CharacterList(c("a", "b", "c", "a"),  "d")
    n_distinct(x)
    n_distinct(unlist(x))

[Package plyranges version 1.12.1 Index]