title: import error linearSVR in sklearn
body: <p>I could not import LinearSVR in sklearn. I did the following</p>
  
  <pre><code>from sklearn.svm import LinearSVR
  </code></pre>
  
  <p>I can easily import SVR as</p>
  
  <pre><code>from sklearn.svm import SVR
  </code></pre>
  
  <p>my sklearn version is <code>0.15.2</code></p>