
<p><strong>Parameters</strong></p>
<dl class="simple">
<dt>nptwo<span class="classifier">int</span></dt><dd><p>The twice signal length (2*npts)</p>
</dd>
<dt>fx<span class="classifier">ndarray, complex [nptwo]               </span></dt><dd><p>The FFT of the two signals (twice length)</p>
</dd>
<dt>nf<span class="classifier">int</span></dt><dd><p>Number of frequency points for spec</p>
</dd>
<dt>df<span class="classifier">float</span></dt><dd><p>Freq sampling</p>
</dd>
<dt>initap<span class="classifier">int