<span class="comment">% about the parameters of SVMcgForClass</span>
<span class="keyword">if</span> nargin &lt; 10
    accstep = 4.5;
<span class="keyword">end</span>
<span class="keyword">if</span> nargin &lt; 8
    cstep = 1;
    gstep = 1;
<span class="keyword">end</span>
<span class="keyword">if</span> nargin &lt; 7
    v = 3;
    cstep = 1;
    gstep = 1;
<span class="keyword">end</span>
<span class="keyword">if</span> nargin &lt; 6
    v = 3;
    cstep = 1;
    gstep = 1;
    gmax = 5;
<span class="k