 class="s">&#39;data&#39;</span><span class="p">,</span><span class="s">&#39;spots.jpg&#39;</span><span class="p">)</span> <span class="p">;</span>
<span class="n">p_pgm</span> <span class="p">=</span> <span class="n">fullfile</span><span class="p">(</span><span class="n">pfx</span><span class="p">,</span><span class="s">&#39;spots.pgm&#39;</span><span class="p">)</span> <span class="p">;</span>
<span class="n">p_sed</span> <span class="p">=</span> <span class="n">fullfile</span><span class="p">(</span><spa