="n">cieobs</span> <span class="o">=</span> <span class="n">cieobs</span><span class="p">,</span> <span class="n">relative</span> <span class="o">=</span> <span class="kc">False</span><span class="p">)</span>
    
 
    <span class="c1"># prepare data and datab for loop over backgrounds: </span>
    <span class="c1"># make axis 1 of datab have &#39;same&#39; dimensions as data:       </span>
    <span class="k">if</span> <span class="p">(</span><span class="n">data</span><span class="o">.</span><span class=