extract

index-class

[.disord

[,disord-method

[,disord,index,ANY-method

[,disord,index,missing-method

[,disord,ANY,ANY-method

[,disord,index,index-method

[,disord,missing,index-method

[,disord,disord,missing-method

[,disord,disord,missing,ANY-method

[,disord,missing,missing-method

[,disord,index,ANY,ANY-method

[,disord,index,missing,ANY-method

[,ANY,disord,ANY-method

[&lt;-

[&lt;-.disord

[&lt;-,disord-method

[&lt;-,disord,ANY,ANY-method

[&lt;-,disord,index,ANY,ANY-method

[&lt;-,disord,index,missing,ANY-method

[&lt;-,disord,index,missing,numeric-method

[&lt;-,disord,index,missing,disord-method

[&lt;-,disord,missing,missing,numeric-method

[&lt;-,disord,missing,missing,disord-method

[&lt;-,disord,index,index-method

[&lt;-,disord,index,missing-method

[&lt;-,disord,missing,index-method

[&lt;-,disord,missing,missing-method

[&lt;-,disord,disord,missing,ANY-method

[&lt;-,disord,disord,missing,disord-method

[&lt;-,disord,disord,missing-method

[&lt;-,disord,missing,missing,ANY-method

Arith,ANY,disord-method

Arith,disord,ANY-method

Arith,disord,disord-method

Arith,disord,missing-method

The <code>disord</code> class provides basic arithmetic and extract/replace
 methods for disord objects.
Class <dfn>index</dfn> is taken from the excellent Matrix package
and is a <code>setClassUnion()</code> of classes <code>numeric</code>,
<code>logical</code>, and <code>character</code>.

Functionality for manipulating values of associative
maps.  Ordinary R vectors are unsuitable for working with values of
associative maps because elements of an R vector may be accessed by
reference to their location in the vector, but associative maps are
stored in arbitrary order.  However, when associating keys with
values one needs both parts to be in 1-1 correspondence, so one
cannot dispense with the order entirely.  The 'disordR' package
includes a single S4 class, disord.  This class allows one to
perform only those operations appropriate for manipulating values of
associative maps and prevents any other operation (such as accessing
an element at a particular location).  A useful heuristic is that
one is only allowed to access or modify a disord object using a
python list comprehension.  The idea is to prevent ill-defined
operations on values (or keys) of associative maps, whose order is
undefined or at best implementation-specific, while allowing and
facilitating sensible operations.  The package is needed for
development versions of 'mvp', 'hyper2', 'spray', 'clifford', and
'freealg'.

Robin K S Hankin

disordR

Non-Ordered Vectors

extract function

<dl class="dl-horizontal">
 <dt>[</dt><dd><code>signature(x = "disord", i = "ANY", j = "ANY")</code>: ...</dd>
 <dt>[</dt><dd><code>signature(x = "disord", i = "index", j = "index")</code>: ...</dd>
 <dt>[</dt><dd><code>signature(x = "disord", i = "index", j = "missing")</code>: ...</dd>
 <dt>[</dt><dd><code>signature(x = "disord", i = "missing", j = "index")</code>: ...</dd>
 <dt>[</dt><dd><code>signature(x = "disord", i = "missing", j = "missing")</code>: ...</dd>
 <dt>[</dt><dd><code>signature(x = "disord", i = "matrix", j = "missing")</code>: ...</dd>
 <dt>[&lt;-</dt><dd><code>signature(x = "disord", i = "index", j = "index")</code>: ...</dd>
 <dt>[&lt;-</dt><dd><code>signature(x = "disord", i = "index", j = "missing")</code>: ...</dd>
 <dt>[&lt;-</dt><dd><code>signature(x = "disord", i = "missing", j = "index")</code>: ...</dd>
 <dt>[&lt;-</dt><dd><code>signature(x = "disord", i = "matrix", j = "missing")</code>: ...</dd>
 <dt>[&lt;-</dt><dd><code>signature(x = "disord", i = "missing", j = "missing")</code>: ...</dd>
 <dt>Arith</dt><dd><code>signature(e1 = "ANY", e2 = "disord")</code>: ...</dd>
 <dt>Arith</dt><dd><code>signature(e1 = "disord", e2 = "ANY")</code>: ...</dd>
 <dt>Arith</dt><dd><code>signature(e1 = "disord", e2 = "disord")</code>: ...</dd>
 <dt>Arith</dt><dd><code>signature(e1 = "disord", e2 = "missing")</code>: ...</dd>
 </dl>The extraction method takes a <code>drop</code> argument which if
 <code>TRUE</code>, returns the <code>drop()</code> of its value.

Methods

Extraction and replacement methods for class <code>"disord"</code> — extract

Extraction and replacement methods for class <code>"disord"</code>

extract: Extraction and replacement methods for class `"disord"`

Description

Arguments

Methods

See Also