div class="optionfield"><code>separate</code>
<code>''</code> (default), <code>'components'</code></div>
<div class="optiondescr">
<p>
Determines whether to return the total spectrum or a list of subspectra. If set to <code>''</code>, the total spectrum is returned. If set to <code>'components'</code>, <code>spec</code> is a matrix with the subspectra of all components (including isotopologues). Each row in <code>spec</code> is one subspectrum.
</p>
</div>

<div class="optionfield"><code>PostConvNucs</code>