title: Minmaxscaler inverse_transform doesn't work
body: <p>my code is as followed:</p>
  <h1>transform scale</h1>
  <pre><code>X = dataset #(100, 18)
  scaler = MinMaxScaler(feature_range=(0, 1))
  scaler = scaler.fit(X)
  scaled_X = scaler.transform(X)
  scaled_series = Series(scaled_X[:, 17])
  print(scaled_series.head())
  </code></pre>
  <h1>invert transform</h1>
  <pre><code>inverted_X = scaler.inverse_transform(scaled_X)
  inverted_series = Series(inverted_X[:, 17])
  print(inverted_series.head())
  </code></pre>
  <p>the problem is that scaled_series and inverted_series are the same result, how should I correct the code?</p>