n_distinct

0th

Percentile

Efficiently count the number of unique values in a vector.

This is a faster and more concise equivalent of length(unique(x))

Usage
n_distinct(x)
Arguments
x
a vector of values
Aliases
  • n_distinct
Examples
x <- sample(1:10, 1e5, rep = TRUE)
length(unique(x))
n_distinct(x)
Documentation reproduced from package dplyr, version 0.3, License: MIT + file LICENSE

Community examples

Looks like there are no examples yet.