title: Classification: Target with more than 2 classes
body: <p>I am doing a classification exercise and facing a target with more than 2 categorical classes. I have encoded those classes using the Labelencoder.
  The only problem is, I believe I might have to use Onehotencoding after as I do not have only zero and 1 anymore but 0,1,2,3.
  The reality is, I just do not know if the Knn or the Decision T. would accept those number as classes. If No, can someone tell me what to do?</p>
  
  <h2>Here my first target:</h2>
  
  <pre><code>Good 
  bad
  medium
  excellent
  </code></pre>
  
  <h1>I changed it to the following:</h1>
  
  <pre><code>1
  3
  2
  0
  </code></pre>
  
  <p>I guess my real question is can this be directly used as classes for my target or I need further engineering?</p>