title: How to apply classifier from one set to another in weka & graph training/testing error
body: <p>two part question involving weka.  </p>
  
  <p>1) once I train a classifier on a set how do i use that classifier on another set?</p>
  
  <p>2) how do i graph the error rate / learning curve in weka?</p>
  
  <p>As of right now I am using the explorer tool (GUI).  I have split my dataset into a training / testing split (60/40).  Run a 10 fold cross validation on my training set and now need to apply this to the testing set.  </p>
  
  <p>However, I have no idea how to apply my newly created classifier to the second set nor where to find my training / testing error data to graph.</p>