title: wrong number of input error in libsvm train
body: <p>I want to classify with linear <code>libsvm</code> function in <code>matlab</code>. I got <code>Wrong number of arguments</code> error when I run this code:</p>
  
  <pre><code>model1 = svmtrain(xTrain, yTrain, '-t 0');
  </code></pre>
  
  <p>my <code>xTrain</code> is a double matrix with <strong>2612*20</strong> dimension and my <code>yTrain</code> is a <strong>2612*1</strong> vector with values <strong>-1</strong> or <strong>1</strong>, Would you please help me what's wrong with this code?
  Thank you in advance </p>