predicate-utils

has_length

has_names

has_duplicates

has_missing

has_infinite

is_empty

A <code><a rd-options="" href="/link/vector?package=arkhe&version=0.5.0" data-mini-rdoc="arkhe::vector">vector</a></code> to be tested.

A length-one <code><a rd-options="" href="/link/numeric?package=arkhe&version=0.5.0" data-mini-rdoc="arkhe::numeric">numeric</a></code> vector specifying the length to test <code>x</code>
with. If <code>NULL</code>, returns <code>TRUE</code> if <code>x</code> has length greater than zero, and
<code>FALSE</code> otherwise.

A <code><a rd-options="" href="/link/character?package=arkhe&version=0.5.0" data-mini-rdoc="arkhe::character">character</a></code> vector specifying the names to test <code>x</code>
with. If <code>NULL</code>, returns <code>TRUE</code> if <code>x</code> has names, and <code>FALSE</code> otherwise.

names

<ul>
<li><code>is_empty()</code> checks is an object is empty (any zero-length dimensions).</li>
<li><code>has_length()</code> checks how long is an object.</li>
<li><code>has_names()</code> checks if an object is named.</li>
<li><code>has_duplicates()</code> checks if an object has duplicated elements.</li>
<li><code>has_missing()</code> and <code>has_infinite()</code> check if an object contains missing
or infinite values.</li>
</ul>

A collection of classes that represent
archaeological data. This package provides a set of S4 classes that
represent different special types of matrix (absolute/relative
frequency, presence/absence data, co-occurrence matrix, etc.) upon
which package developers can build subclasses. It also provides a set
of generic methods (mutators and coercion mechanisms) and functions
(e.g. summary statistics, predicates). In addition, a few classes of
general interest (e.g. that represent stratigraphic relationships)
are implemented.

Nicolas Frerebeau

arkhe

Representation of Archaeological Data

Brice Lebrun

predicate-utils function

<dl><dt>x</dt>
<dd>A <code><a href="/link/vector?package=arkhe&version=0.5.0" data-mini-rdoc="arkhe::vector">vector</a></code> to be tested.</dd>
<dt>n</dt>
<dd>A length-one <code><a href="/link/numeric?package=arkhe&version=0.5.0" data-mini-rdoc="arkhe::numeric">numeric</a></code> vector specifying the length to test <code>x</code>
with. If <code>NULL</code>, returns <code>TRUE</code> if <code>x</code> has length greater than zero, and
<code>FALSE</code> otherwise.</dd>
<dt>names</dt>
<dd>A <code><a href="/link/character?package=arkhe&version=0.5.0" data-mini-rdoc="arkhe::character">character</a></code> vector specifying the names to test <code>x</code>
with. If <code>NULL</code>, returns <code>TRUE</code> if <code>x</code> has names, and <code>FALSE</code> otherwise.</dd></dl>

Arguments

Utility Predicates — predicate-utils

<dl>

<dt>x</dt>
<dd>A <code><a href='https://rdrr.io/r/base/vector.html'>vector</a></code> to be tested.</dd>


<dt>n</dt>
<dd>A length-one <code><a href='https://rdrr.io/r/base/numeric.html'>numeric</a></code> vector specifying the length to test <code>x</code>
with. If <code>NULL</code>, returns <code>TRUE</code> if <code>x</code> has length greater than zero, and
<code>FALSE</code> otherwise.</dd>


<dt>names</dt>
<dd>A <code><a href='https://rdrr.io/r/base/character.html'>character</a></code> vector specifying the names to test <code>x</code>
with. If <code>NULL</code>, returns <code>TRUE</code> if <code>x</code> has names, and <code>FALSE</code> otherwise.</dd>

</dl>

predicate-utils: Utility Predicates

Description

Usage

Value

Arguments

See Also