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KLDiv-class.html
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KLDiv-class.html
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<h1>The KLDiv class.</h1>
<small class="dont-index">Source: <a href='https://github.com/cvxgrp/CVXR/blob/master/R/elementwise.R'><code>R/elementwise.R</code></a></small>
<div class="hidden name"><code>KLDiv-class.Rd</code></div>
</div>
<div class="ref-description">
<p>The elementwise KL-divergence \(x\log(x/y) - x + y\).</p>
</div>
<pre class="usage"><span class='fu'>KLDiv</span>(<span class='no'>x</span>, <span class='no'>y</span>)
<span class='co'># S4 method for KLDiv</span>
<span class='fu'><a href='to_numeric.html'>to_numeric</a></span>(<span class='no'>object</span>, <span class='no'>values</span>)
<span class='co'># S4 method for KLDiv</span>
<span class='fu'><a href='sign_from_args.html'>sign_from_args</a></span>(<span class='no'>object</span>)
<span class='co'># S4 method for KLDiv</span>
<span class='fu'><a href='curvature-atom.html'>is_atom_convex</a></span>(<span class='no'>object</span>)
<span class='co'># S4 method for KLDiv</span>
<span class='fu'><a href='curvature-atom.html'>is_atom_concave</a></span>(<span class='no'>object</span>)
<span class='co'># S4 method for KLDiv</span>
<span class='fu'><a href='curvature-comp.html'>is_incr</a></span>(<span class='no'>object</span>, <span class='no'>idx</span>)
<span class='co'># S4 method for KLDiv</span>
<span class='fu'><a href='curvature-comp.html'>is_decr</a></span>(<span class='no'>object</span>, <span class='no'>idx</span>)
<span class='co'># S4 method for KLDiv</span>
<span class='fu'>.grad</span>(<span class='no'>object</span>, <span class='no'>values</span>)
<span class='co'># S4 method for KLDiv</span>
<span class='fu'>.domain</span>(<span class='no'>object</span>)</pre>
<h2 class="hasAnchor" id="arguments"><a class="anchor" href="#arguments"></a>Arguments</h2>
<table class="ref-arguments">
<colgroup><col class="name" /><col class="desc" /></colgroup>
<tr>
<th>x</th>
<td><p>An <a href='Expression-class.html'>Expression</a> or numeric constant.</p></td>
</tr>
<tr>
<th>y</th>
<td><p>An <a href='Expression-class.html'>Expression</a> or numeric constant.</p></td>
</tr>
<tr>
<th>object</th>
<td><p>A KLDiv object.</p></td>
</tr>
<tr>
<th>values</th>
<td><p>A list of numeric values for the arguments</p></td>
</tr>
<tr>
<th>idx</th>
<td><p>An index into the atom.</p></td>
</tr>
</table>
<h2 class="hasAnchor" id="methods-by-generic-"><a class="anchor" href="#methods-by-generic-"></a>Methods (by generic)</h2>
<ul>
<li><p><code>to_numeric</code>: The KL-divergence evaluted elementwise on the input value.</p></li>
<li><p><code>sign_from_args</code>: The atom is positive.</p></li>
<li><p><code>is_atom_convex</code>: The atom is convex.</p></li>
<li><p><code>is_atom_concave</code>: The atom is not concave.</p></li>
<li><p><code>is_incr</code>: The atom is not monotonic in any argument.</p></li>
<li><p><code>is_decr</code>: The atom is not monotonic in any argument.</p></li>
<li><p><code>.grad</code>: Gives the (sub/super)gradient of the atom w.r.t. each variable</p></li>
<li><p><code>.domain</code>: Returns constraints describng the domain of the node</p></li>
</ul>
<h2 class="hasAnchor" id="slots"><a class="anchor" href="#slots"></a>Slots</h2>
<dl'>
<dt><code>x</code></dt><dd><p>An <a href='Expression-class.html'>Expression</a> or numeric constant.</p></dd>
<dt><code>y</code></dt><dd><p>An <a href='Expression-class.html'>Expression</a> or numeric constant.</p></dd>
</dl>
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