span class="n">gaussian_model</span><span class="p">(</span><span class="n">axis</span><span class="p">,</span> <span class="n">amp_</span><span class="p">,</span> <span class="n">line_pos</span><span class="p">,</span> <span class="n">sigma</span><span class="p">)</span>
            <span class="k">elif</span> <span class="bp">self</span><span class="o">.</span><span class="n">fit_function</span> <span class="o">==</span> <span class="s1">&#39;sinc&#39;</span><span class="p">:</span>
                <span 