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<html><head><title>R: Classes “dist”, “ar_cross_dissimilarity” and “ar_similarity” — Proximity Matrices</title>
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<table width="100%" summary="page for proximity-classes {arules}"><tr><td>proximity-classes {arules}</td><td align="right">R Documentation</td></tr></table>
<h2>Classes “dist”, “ar_cross_dissimilarity” and “ar_similarity” — Proximity Matrices</h2>
<h3>Description</h3>
<p>
Simple classes to represent proximity matrices. For compatibility with
clustering functions in <code>R</code>, we represent dissimilarities as the
<code>S3</code> class <code>dist</code>. For cross-dissimilarities and similarities, we
provide the <code>S4</code> classes <code>ar_cross_dissimilarities</code> and
<code>ar_similarities</code>.
</p>
<h3>Objects from the Class</h3>
<p>
<code>dist</code> objects are the result of calling the method
<code><a href="dissimilarity.html">dissimilarity</a></code> with one argument or any <code>R</code> function
returning a <code>S3 dist</code> object.
</p>
<p>
<code>ar_cross_dissimilarity</code> objects are the result of calling the method
<code><a href="dissimilarity.html">dissimilarity</a></code> with two arguments, by calls of the form
<code>new("similarity", ...)</code>, or by coercion from matrix.
</p>
<p>
<code>ar_similarity</code> objects are the result of calling the method
<code><a href="affinity.html">affinity</a></code>, by calls of the form <code>new("similarity", ...)</code>,
or by coercion from matrix.
</p>
<h3>Slots</h3>
<p>
The <code>S4</code> classes have a <code>method</code> slot which contains the
type of measure used for calculation.
</p>
<h3>See Also</h3>
<p>
<code><a href="../../stats/html/dist.html">dist</a></code> (in package <code>stats</code>),
<code><a href="dissimilarity.html">dissimilarity</a></code>,
<code><a href="affinity.html">affinity</a></code>.
</p>
<hr><div align="center">[Package <em>arules</em> version 0.6-6 <a href="00Index.html">Index]</a></div>
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