<blockquote>
<p>I thought instead of making the feature numeric, splitting them into categories might produce a more accurate prediction. Same goes for gap, and etc..</p>
</blockquote>

<p>Do you mean you want to make the mlpack support format as following?</p>

<pre><code>33.33 44.666 winter 2014/05/06
</code></pre>

<p>If this is what you mean, maybe let the users able to transform the winter and 2014/05/06 into number could solve the problem.</p>

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