[docs]</a><span class="k">def</span> <span class="nf">check_purefc</span><span class="p">(</span><span class="n">ftype</span><span class="p">):</span>
    <span class="sd">&#39;&#39;&#39;Check for a pure forecast mode.</span>

<span class="sd">    Parameters</span>
<span class="sd">    ----------</span>
<span class="sd">    ftype : list of str</span>
<span class="sd">        List of field types.</span>

<span class="sd">    Return</span>
<span class="sd">    ------</span>
<span class="sd">    True or False: