date_group

<code>date_group()</code> groups by a single component of a date-time, such as month
of the year, or day of the month.
There are separate help pages for grouping dates and date-times:<ul>
<li>dates (Date)</li>
<li>date-times (POSIXct/POSIXlt)</li>
</ul>

Provides a comprehensive library for date-time manipulations
using a new family of orthogonal date-time classes (durations, time
points, zoned-times, and calendars) that partition responsibilities so
that the complexities of time zones are only considered when they are
really needed. Capabilities include: date-time parsing, formatting,
arithmetic, extraction and updating of components, and rounding.

Davis Vaughan

clock

Date-Time Types and Tools

Posit Software, PBC 

date_group function

<dl><dt>x</dt>
<dd><code>[Date / POSIXct / POSIXlt]</code>
A date or date-time vector.</dd>
<dt>precision</dt>
<dd><code>[character(1)]</code>
A precision. Allowed precisions are dependent on the input used.</dd>
<dt>...</dt>
<dd>These dots are for future extensions and must be empty.</dd>
<dt>n</dt>
<dd><code>[positive integer(1)]</code>
A single positive integer specifying a multiple of <code>precision</code> to use.</dd></dl>

Arguments

Group date and date-time components — date_group

<dl>

<dt>x</dt>
<dd><code>[Date / POSIXct / POSIXlt]</code>
A date or date-time vector.</dd>


<dt>precision</dt>
<dd><code>[character(1)]</code>
A precision. Allowed precisions are dependent on the input used.</dd>


<dt>...</dt>
<dd>These dots are for future extensions and must be empty.</dd>


<dt>n</dt>
<dd><code>[positive integer(1)]</code>
A single positive integer specifying a multiple of <code>precision</code> to use.</dd>

</dl>

date_group: Group date and date-time components

Description

Usage

Value

Arguments

Examples