<code><a href="/link/duplicated()?package=bit64&version=4.8.4" data-mini-rdoc="bit64::duplicated()">duplicated()</a></code> determines which elements of a vector or data frame are duplicates
of elements with smaller subscripts, and returns a logical vector
indicating which elements (rows) are duplicates.

duplicated.integer64

Package 'bit64' provides serializable S3 atomic 64bit (signed) integers.
These are useful for handling database keys and exact counting in +-2^63.
WARNING: do not use them as replacement for 32bit integers, integer64 are not
supported for subscripting by R-core and they have different semantics when
combined with double, e.g. integer64 + double => integer64.
Class integer64 can be used in vectors, matrices, arrays and data.frames.
Methods are available for coercion from and to logicals, integers, doubles,
characters and factors as well as many elementwise and summary functions.
Many fast algorithmic operations such as 'match' and 'order' support inter-
active data exploration and manipulation and optionally leverage caching.

Michael Chirico

bit64

A S3 Class for Vectors of 64bit Integers

Jens Oehlschlägel

Leonardo Silvestri

Ofek Shilon

Christian Ullerich

duplicated.integer64 function

<code><a href='https://rdrr.io/r/base/duplicated.html'>duplicated()</a></code> determines which elements of a vector or data frame are duplicates
of elements with smaller subscripts, and returns a logical vector
indicating which elements (rows) are duplicates.

Determine Duplicate Elements of integer64 — duplicated.integer64

<dl>

<dt>x</dt>
<dd>a vector or a data frame or an array or <code>NULL</code>.</dd>


<dt>incomparables</dt>
<dd>ignored</dd>


<dt>nunique</dt>
<dd>NULL or the number of unique values (including NA). Providing
<code>nunique</code> can speed-up matching when <code>x</code> has no cache. Note that a wrong
<code>nunique</code> can cause undefined behaviour up to a crash.</dd>


<dt>method</dt>
<dd>NULL for automatic method selection or a suitable low-level
method, see details</dd>


<dt>...</dt>
<dd>ignored</dd>

</dl>

duplicated.integer64: Determine Duplicate Elements of integer64

Description

Usage

Arguments

Value

Details

See Also

Examples