 class="string">'linewidth'</span>,10)
text(0,-0.5,<span class="string">'applied  torque (inner joint)'</span>)
text(0,-0.7,<span class="string">'immediate reward'</span>)
<span class="keyword">if</span> exist(<span class="string">'text1'</span>,<span class="string">'var'</span>)
  text(0,-0.9, text1)
<span class="keyword">end</span>
<span class="keyword">if</span> exist(<span class="string">'text2'</span>,<span class="string">'var'</span>)
  text(0,-1.1, text2)
<span class="keyword">end</span>

set(gca,<sp