 of size <code>K</code>.</p>
<pre><code>c[idxs] = ( c[idxs[1]], c[idxs[2]], ..., c[idxs[K]] )</code></pre>
<p>Thus <code>c[idxs]</code> is of the same size as <code>idxs</code>, which is <code>K</code> in this example.</p>
<p>Multiple indexing can also be used with multi-dimensional arrays. For example, consider the following.</p>
<div class="sourceCode" id="cb6"><pre class="sourceCode stan code-with-copy"><code class="sourceCode stan"><span id="cb6-1"><a href="#cb6-1" aria-hidden="true" tabindex="-1"></a><