n_distinct

This is a faster version of <code>length(unique(x))</code> that calls <code><a href="https://rdatatable.gitlab.io/data.table/reference/duplicated.html">data.table::uniqueN()</a></code>.

A tidy interface to 'data.table',
giving users the speed of 'data.table' while using tidyverse-like syntax.

Mark Fairbanks

tidytable

Tidy Interface to 'data.table'

Abdessabour Moutik

Matt Carlson

Ivan Leung

Ross Kennedy

Robert On

Alexander Sevostianov

Koen ter Berg

n_distinct function

<dl><dt>...</dt>
<dd>vectors of values</dd>
<dt>na.rm</dt>
<dd>If <code>TRUE</code> missing values don't count</dd></dl>

Arguments

This is a faster version of <code>length(unique(x))</code> that calls <code><a href='https://rdatatable.gitlab.io/data.table/reference/duplicated.html'>data.table::uniqueN()</a></code>.

Count the number of unique values in a vector — n_distinct

<dl>

<dt>...</dt>
<dd>vectors of values</dd>


<dt>na.rm</dt>
<dd>If <code>TRUE</code> missing values don't count</dd>

</dl>

n_distinct: Count the number of unique values in a vector

Description

Usage

Arguments

Examples