<p>1 : add function Serialize to class SoftmaxRegression<br>
2 : add function Train to class SoftmaxRegression<br>
3 : fix bug--did not initialize fitIntercept</p>

<p>The test case "SoftmaxRegressionFunctionEvaluate" always fail on my machine</p>

<hr>

<h4>You can view, comment on, or merge this pull request online at:</h4>
<p>&nbsp;&nbsp;<a href='https://github.com/mlpack/mlpack/pull/456'>https://github.com/mlpack/mlpack/pull/456</a></p>

<h4>Commit Summary</h4>
<ul>
  <li>1 : add function Serialize</li>
</ul>

<h4>File Changes</h4>
<ul>
  <li>
    <strong>M</strong>
    <a href="https://github.com/mlpack/mlpack/pull/456/files#diff-0">src/mlpack/methods/softmax_regression/softmax_regression.hpp</a>
    (103)
  </li>
  <li>
    <strong>M</strong>
    <a href="https://github.com/mlpack/mlpack/pull/456/files#diff-1">src/mlpack/methods/softmax_regression/softmax_regression_impl.hpp</a>
    (97)
  </li>
</ul>

<h4>Patch Links:</h4>
<ul>
  <li><a href='https://github.com/mlpack/mlpack/pull/456.patch'>https://github.com/mlpack/mlpack/pull/456.patch</a></li>
  <li><a href='https://github.com/mlpack/mlpack/pull/456.diff'>https://github.com/mlpack/mlpack/pull/456.diff</a></li>
</ul>

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