a),50,r,mi);</span><br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[x,y]=ellips(mi,inv(sigma),r,40);<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class=graph>set</span>(h.ellipse.handler,<span class=quotes>'XData'</span>,x,<span class=quotes>'YData'</span>,y,<span class=quotes>'Visible'</span>,<span class=quotes>'on'</span>);<br>
&nbsp;&nbsp;&nbsp;<span class=keyword>end</span><br>
<br>
&nbsp;&nbsp;&nbsp;<span class=comment>%&nbsp;comment</span><br>
&nbsp;&nbsp;&nbsp;<span class=graph>set</span>(h.txsteps,<span c