py"><code class="sourceCode stan"><span id="cb11-1"><a href="#cb11-1" aria-hidden="true" tabindex="-1"></a><span class="kw">data</span> {</span>
<span id="cb11-2"><a href="#cb11-2" aria-hidden="true" tabindex="-1"></a>  <span class="dt">int</span>&lt;<span class="kw">lower</span>=<span class="dv">0</span>&gt; N;</span>
<span id="cb11-3"><a href="#cb11-3" aria-hidden="true" tabindex="-1"></a>  <span class="dt">complex_vector</span>[N] x;</span>
<span id="cb11-4"><a href="#cb11-4" aria-hidden="true" tabindex=