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	<tr class="memdesc:group__grp__arraysmatrix"><td class="mdescLeft"> </td><td class="mdescRight">Mathematical operations for arrays and matrices. <br /></td></tr>
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	<tr class="memdesc:group__grp__encode__categorical"><td class="mdescLeft"> </td><td class="mdescRight">Functions to encode categorical variables to prepare data for input into predictive algorithms. <br /></td></tr>
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	<tr class="memitem:group__grp__path"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__grp__path.html">Path</a></td></tr>
	<tr class="memdesc:group__grp__path"><td class="mdescLeft"> </td><td class="mdescRight">A function to perform complex pattern matching across rows and extract useful information about the matches. <br /></td></tr>
	<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
	<tr class="memitem:group__grp__pivot"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__grp__pivot.html">Pivot</a></td></tr>
	<tr class="memdesc:group__grp__pivot"><td class="mdescLeft"> </td><td class="mdescRight">Pivoting and data summarization tools for preparing data for modeling operations. <br /></td></tr>
	<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
	<tr class="memitem:group__grp__sessionize"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__grp__sessionize.html">Sessionize</a></td></tr>
	<tr class="memdesc:group__grp__sessionize"><td class="mdescLeft"> </td><td class="mdescRight">Session reconstruction of data consisting of a time stampled sequence of events. <br /></td></tr>
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	<tr class="memitem:group__grp__stemmer"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__grp__stemmer.html">Stemming</a></td></tr>
	<tr class="memdesc:group__grp__stemmer"><td class="mdescLeft"> </td><td class="mdescRight">Provides porter stemmer operations supporting other MADlib modules. <br /></td></tr>
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