<span class="comment">%------------------------------------------------------------------</span>
        <span class="keyword">function</span> setDefaultProps(this)
            this.echo = 1;
        <span class="keyword">end</span>

        <span class="comment">%------------------------------------------------------------------</span>
        <span class="keyword">function</span> runSimulations(this,echo)
            <span class="keyword">if</span> (nargin &gt; 1)
                this.echo = echo;
       