ring">'t'</span>;
0514           <span class="keyword">if</span> exist(str{val})
0515               figure
0516               var2 = str{val};
0517               eval([<span class="string">'plot('</span> var1 <span class="string">','</span>  var2 <span class="string">')'</span>])
0518               xlabel(<span class="string">'Time'</span>)
0519               ylabel(var2)
0520               xlim([0 t(end)])
0521           <span class="keyword">else</span>
0522               errordlg(<span class="string">'Ca