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+  <td style="padding-left: 0.5em;">
+   <div id="projectname">
+   <span id="projectnumber">1.9.1</span>
+   </div>
+   <div id="projectbrief">User Documentation for MADlib</div>
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+<a href="#func-members">Functions</a>  </div>
+  <div class="headertitle">
+<div class="title">elastic_net.sql_in File Reference</div>  </div>
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+<div class="contents">
+
+<p>SQL functions for elastic net regularization.  
+<a href="#details">More...</a></p>
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class="mdescLeft">&#160;</td><td class="mdescRight">Interface for elastic net.  
<a href="#a735038a5090c112505c740a90a203e83">More...</a><br /></td></tr>
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+<tr class="separator:a3578608204ac9b2d3442ff42977f632b"><td 
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lambda, float8 alpha, integer dimension, integer total_rows, float8 
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class="memSeparator" colspan="2">&#160;</td></tr>
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+<tr class="separator:a1e0cc178e025d8eebb0637d97a02f624"><td 
class="memSeparator" colspan="2">&#160;</td></tr>
+</table>
+<a name="details" id="details"></a><h2 class="groupheader">Detailed 
Description</h2>
+<div class="textblock"><dl class="section date"><dt>Date</dt><dd>July 
2012</dd></dl>
+<dl class="section see"><dt>See also</dt><dd>For a brief introduction to 
elastic net, see the module description <a class="el" 
href="group__grp__elasticnet.html">Elastic Net Regularization</a>. </dd></dl>
+</div><h2 class="groupheader">Function Documentation</h2>
+<a class="anchor" id="af83bb77c4eb5c9f5750f35d56fd39117"></a>
+<div class="memitem">
+<div class="memproto">
+      <table class="memname">
+        <tr>
+          <td class="memname">float8 [] __binomial_fista_final </td>
+          <td>(</td>
+          <td class="paramtype">float8[]&#160;</td>
+          <td class="paramname"><em>state</em></td><td>)</td>
+          <td></td>
+        </tr>
+      </table>
+</div><div class="memdoc">
+
+</div>
+</div>
+<a class="anchor" id="a2284166bacd4b45fb34d50b2d7aec4d4"></a>
+<div class="memitem">
+<div class="memproto">
+      <table class="memname">
+        <tr>
+          <td class="memname">float8 [] __binomial_fista_merge </td>
+          <td>(</td>
+          <td class="paramtype">float8[]&#160;</td>
+          <td class="paramname"><em>state1</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8[]&#160;</td>
+          <td class="paramname"><em>state2</em>&#160;</td>
+        </tr>
+        <tr>
+          <td></td>
+          <td>)</td>
+          <td></td><td></td>
+        </tr>
+      </table>
+</div><div class="memdoc">
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+</div>
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+<div class="memitem">
+<div class="memproto">
+      <table class="memname">
+        <tr>
+          <td class="memname">__elastic_net_result __binomial_fista_result 
</td>
+          <td>(</td>
+          <td class="paramtype">float8[]&#160;</td>
+          <td class="paramname"><em>in_state</em></td><td>)</td>
+          <td></td>
+        </tr>
+      </table>
+</div><div class="memdoc">
+
+</div>
+</div>
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+<div class="memitem">
+<div class="memproto">
+      <table class="memname">
+        <tr>
+          <td class="memname">float8 __binomial_fista_state_diff </td>
+          <td>(</td>
+          <td class="paramtype">float8[]&#160;</td>
+          <td class="paramname"><em>state1</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8[]&#160;</td>
+          <td class="paramname"><em>state2</em>&#160;</td>
+        </tr>
+        <tr>
+          <td></td>
+          <td>)</td>
+          <td></td><td></td>
+        </tr>
+      </table>
+</div><div class="memdoc">
+
+</div>
+</div>
+<a class="anchor" id="a69a71f6e1f8fb3f7d8ad8b987bd432db"></a>
+<div class="memitem">
+<div class="memproto">
+      <table class="memname">
+        <tr>
+          <td class="memname">aggregate float8 [] __binomial_fista_step </td>
+          <td>(</td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname">[], </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">boolean&#160;</td>
+          <td class="paramname">, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname">[], </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname">, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname">, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">integer&#160;</td>
+          <td class="paramname">, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">integer&#160;</td>
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+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname">, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname">, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">integer&#160;</td>
+          <td class="paramname">, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">integer&#160;</td>
+          <td class="paramname">, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">integer&#160;</td>
+          <td class="paramname">&#160;</td>
+        </tr>
+        <tr>
+          <td></td>
+          <td>)</td>
+          <td></td><td></td>
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+      </table>
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+</div>
+</div>
+<a class="anchor" id="a43f125953d105e8ad2243f7c722cf753"></a>
+<div class="memitem">
+<div class="memproto">
+      <table class="memname">
+        <tr>
+          <td class="memname">float8 [] __binomial_fista_transition </td>
+          <td>(</td>
+          <td class="paramtype">float8[]&#160;</td>
+          <td class="paramname"><em>state</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8[]&#160;</td>
+          <td class="paramname"><em>ind_var</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">boolean&#160;</td>
+          <td class="paramname"><em>dep_var</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8[]&#160;</td>
+          <td class="paramname"><em>pre_state</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname"><em>lambda</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname"><em>alpha</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">integer&#160;</td>
+          <td class="paramname"><em>dimension</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">integer&#160;</td>
+          <td class="paramname"><em>total_rows</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname"><em>max_stepsize</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname"><em>eta</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">integer&#160;</td>
+          <td class="paramname"><em>use_active_set</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">integer&#160;</td>
+          <td class="paramname"><em>is_active</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">integer&#160;</td>
+          <td class="paramname"><em>random_stepsize</em>&#160;</td>
+        </tr>
+        <tr>
+          <td></td>
+          <td>)</td>
+          <td></td><td></td>
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+<div class="memitem">
+<div class="memproto">
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+        <tr>
+          <td class="memname">float8 [] __binomial_igd_final </td>
+          <td>(</td>
+          <td class="paramtype">float8[]&#160;</td>
+          <td class="paramname"><em>state</em></td><td>)</td>
+          <td></td>
+        </tr>
+      </table>
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+<div class="memitem">
+<div class="memproto">
+      <table class="memname">
+        <tr>
+          <td class="memname">float8 [] __binomial_igd_merge </td>
+          <td>(</td>
+          <td class="paramtype">float8[]&#160;</td>
+          <td class="paramname"><em>state1</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8[]&#160;</td>
+          <td class="paramname"><em>state2</em>&#160;</td>
+        </tr>
+        <tr>
+          <td></td>
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+<div class="memitem">
+<div class="memproto">
+      <table class="memname">
+        <tr>
+          <td class="memname">__elastic_net_result __binomial_igd_result </td>
+          <td>(</td>
+          <td class="paramtype">float8[]&#160;</td>
+          <td class="paramname"><em>in_state</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8[]&#160;</td>
+          <td class="paramname"><em>feature_sq</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname"><em>threshold</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname"><em>tolerance</em>&#160;</td>
+        </tr>
+        <tr>
+          <td></td>
+          <td>)</td>
+          <td></td><td></td>
+        </tr>
+      </table>
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+<a class="anchor" id="a2968538b152e7f38e71bcff8e55b768e"></a>
+<div class="memitem">
+<div class="memproto">
+      <table class="memname">
+        <tr>
+          <td class="memname">float8 __binomial_igd_state_diff </td>
+          <td>(</td>
+          <td class="paramtype">float8[]&#160;</td>
+          <td class="paramname"><em>state1</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8[]&#160;</td>
+          <td class="paramname"><em>state2</em>&#160;</td>
+        </tr>
+        <tr>
+          <td></td>
+          <td>)</td>
+          <td></td><td></td>
+        </tr>
+      </table>
+</div><div class="memdoc">
+
+</div>
+</div>
+<a class="anchor" id="a791a9701c20c65d1e86a1d5c3462b99d"></a>
+<div class="memitem">
+<div class="memproto">
+      <table class="memname">
+        <tr>
+          <td class="memname">aggregate float8 [] __binomial_igd_step </td>
+          <td>(</td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname">[], </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">boolean&#160;</td>
+          <td class="paramname">, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname">[], </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname">, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname">, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">integer&#160;</td>
+          <td class="paramname">, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname">, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">integer&#160;</td>
+          <td class="paramname">, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname">[], </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname">, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname">&#160;</td>
+        </tr>
+        <tr>
+          <td></td>
+          <td>)</td>
+          <td></td><td></td>
+        </tr>
+      </table>
+</div><div class="memdoc">
+
+</div>
+</div>
+<a class="anchor" id="ac1ec74fff164d85cae14969bb0890e11"></a>
+<div class="memitem">
+<div class="memproto">
+      <table class="memname">
+        <tr>
+          <td class="memname">aggregate float8 [] 
__binomial_igd_step_single_seg </td>
+          <td>(</td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname">[], </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">boolean&#160;</td>
+          <td class="paramname">, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname">[], </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname">, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname">, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">integer&#160;</td>
+          <td class="paramname">, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname">, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">integer&#160;</td>
+          <td class="paramname">, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname">[], </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname">, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname">&#160;</td>
+        </tr>
+        <tr>
+          <td></td>
+          <td>)</td>
+          <td></td><td></td>
+        </tr>
+      </table>
+</div><div class="memdoc">
+
+</div>
+</div>
+<a class="anchor" id="aa0f3feb438f90eef90ddfc9ad4f3e33e"></a>
+<div class="memitem">
+<div class="memproto">
+      <table class="memname">
+        <tr>
+          <td class="memname">float8 [] __binomial_igd_transition </td>
+          <td>(</td>
+          <td class="paramtype">float8[]&#160;</td>
+          <td class="paramname"><em>state</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8[]&#160;</td>
+          <td class="paramname"><em>ind_var</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">boolean&#160;</td>
+          <td class="paramname"><em>dep_var</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8[]&#160;</td>
+          <td class="paramname"><em>pre_state</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname"><em>lambda</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname"><em>alpha</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">integer&#160;</td>
+          <td class="paramname"><em>dimension</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname"><em>stepsize</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">integer&#160;</td>
+          <td class="paramname"><em>total_rows</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8[]&#160;</td>
+          <td class="paramname"><em>xmean</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname"><em>ymean</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname"><em>step_decay</em>&#160;</td>
+        </tr>
+        <tr>
+          <td></td>
+          <td>)</td>
+          <td></td><td></td>
+        </tr>
+      </table>
+</div><div class="memdoc">
+
+</div>
+</div>
+<a class="anchor" id="a465ca3aeaca43ab1294f82146eb2fc31"></a>
+<div class="memitem">
+<div class="memproto">
+      <table class="memname">
+        <tr>
+          <td class="memname">float8 __elastic_net_binomial_loglikelihood </td>
+          <td>(</td>
+          <td class="paramtype">float8[]&#160;</td>
+          <td class="paramname"><em>coefficients</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname"><em>intercept</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">boolean&#160;</td>
+          <td class="paramname"><em>dep_var</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8[]&#160;</td>
+          <td class="paramname"><em>ind_var</em>&#160;</td>
+        </tr>
+        <tr>
+          <td></td>
+          <td>)</td>
+          <td></td><td></td>
+        </tr>
+      </table>
+</div><div class="memdoc">
+
+</div>
+</div>
+<a class="anchor" id="a9cf4bc6bc719c054cf99436965bbab0c"></a>
+<div class="memitem">
+<div class="memproto">
+      <table class="memname">
+        <tr>
+          <td class="memname">float8 [] __gaussian_fista_final </td>
+          <td>(</td>
+          <td class="paramtype">float8[]&#160;</td>
+          <td class="paramname"><em>state</em></td><td>)</td>
+          <td></td>
+        </tr>
+      </table>
+</div><div class="memdoc">
+
+</div>
+</div>
+<a class="anchor" id="a35dad39bc1dce3573be2c9cc3f5458b2"></a>
+<div class="memitem">
+<div class="memproto">
+      <table class="memname">
+        <tr>
+          <td class="memname">float8 [] __gaussian_fista_merge </td>
+          <td>(</td>
+          <td class="paramtype">float8[]&#160;</td>
+          <td class="paramname"><em>state1</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8[]&#160;</td>
+          <td class="paramname"><em>state2</em>&#160;</td>
+        </tr>
+        <tr>
+          <td></td>
+          <td>)</td>
+          <td></td><td></td>
+        </tr>
+      </table>
+</div><div class="memdoc">
+
+</div>
+</div>
+<a class="anchor" id="a9f5ed35bd3467280e7d68604046ccebd"></a>
+<div class="memitem">
+<div class="memproto">
+      <table class="memname">
+        <tr>
+          <td class="memname">__elastic_net_result __gaussian_fista_result 
</td>
+          <td>(</td>
+          <td class="paramtype">float8[]&#160;</td>
+          <td class="paramname"><em>in_state</em></td><td>)</td>
+          <td></td>
+        </tr>
+      </table>
+</div><div class="memdoc">
+
+</div>
+</div>
+<a class="anchor" id="ab9b58c238fa59cd8b38a07d3cbfef514"></a>
+<div class="memitem">
+<div class="memproto">
+      <table class="memname">
+        <tr>
+          <td class="memname">float8 __gaussian_fista_state_diff </td>
+          <td>(</td>
+          <td class="paramtype">float8[]&#160;</td>
+          <td class="paramname"><em>state1</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8[]&#160;</td>
+          <td class="paramname"><em>state2</em>&#160;</td>
+        </tr>
+        <tr>
+          <td></td>
+          <td>)</td>
+          <td></td><td></td>
+        </tr>
+      </table>
+</div><div class="memdoc">
+
+</div>
+</div>
+<a class="anchor" id="a4566cf3ca4587153ab7b57fd741582fe"></a>
+<div class="memitem">
+<div class="memproto">
+      <table class="memname">
+        <tr>
+          <td class="memname">aggregate float8 [] __gaussian_fista_step </td>
+          <td>(</td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname">[], </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname">, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname">[], </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname">, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname">, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">integer&#160;</td>
+          <td class="paramname">, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">integer&#160;</td>
+          <td class="paramname">, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname">, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname">, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">integer&#160;</td>
+          <td class="paramname">, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">integer&#160;</td>
+          <td class="paramname">, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">integer&#160;</td>
+          <td class="paramname">&#160;</td>
+        </tr>
+        <tr>
+          <td></td>
+          <td>)</td>
+          <td></td><td></td>
+        </tr>
+      </table>
+</div><div class="memdoc">
+
+</div>
+</div>
+<a class="anchor" id="a87bf3c26c925cfe8d214cc4f8c784613"></a>
+<div class="memitem">
+<div class="memproto">
+      <table class="memname">
+        <tr>
+          <td class="memname">float8 [] __gaussian_fista_transition </td>
+          <td>(</td>
+          <td class="paramtype">float8[]&#160;</td>
+          <td class="paramname"><em>state</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8[]&#160;</td>
+          <td class="paramname"><em>ind_var</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname"><em>dep_var</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8[]&#160;</td>
+          <td class="paramname"><em>pre_state</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname"><em>lambda</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname"><em>alpha</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">integer&#160;</td>
+          <td class="paramname"><em>dimension</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">integer&#160;</td>
+          <td class="paramname"><em>total_rows</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname"><em>max_stepsize</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname"><em>eta</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">integer&#160;</td>
+          <td class="paramname"><em>use_active_set</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">integer&#160;</td>
+          <td class="paramname"><em>is_active</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">integer&#160;</td>
+          <td class="paramname"><em>random_stepsize</em>&#160;</td>
+        </tr>
+        <tr>
+          <td></td>
+          <td>)</td>
+          <td></td><td></td>
+        </tr>
+      </table>
+</div><div class="memdoc">
+
+</div>
+</div>
+<a class="anchor" id="a4c5b88fb94d8035e988178a2b67ffa43"></a>
+<div class="memitem">
+<div class="memproto">
+      <table class="memname">
+        <tr>
+          <td class="memname">float8 [] __gaussian_igd_final </td>
+          <td>(</td>
+          <td class="paramtype">float8[]&#160;</td>
+          <td class="paramname"><em>state</em></td><td>)</td>
+          <td></td>
+        </tr>
+      </table>
+</div><div class="memdoc">
+
+</div>
+</div>
+<a class="anchor" id="aba6849a59e2178eb0629d3bfc5abe5da"></a>
+<div class="memitem">
+<div class="memproto">
+      <table class="memname">
+        <tr>
+          <td class="memname">float8 [] __gaussian_igd_merge </td>
+          <td>(</td>
+          <td class="paramtype">float8[]&#160;</td>
+          <td class="paramname"><em>state1</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8[]&#160;</td>
+          <td class="paramname"><em>state2</em>&#160;</td>
+        </tr>
+        <tr>
+          <td></td>
+          <td>)</td>
+          <td></td><td></td>
+        </tr>
+      </table>
+</div><div class="memdoc">
+
+</div>
+</div>
+<a class="anchor" id="a407f4a6063a4eb931a39b23f52d675f1"></a>
+<div class="memitem">
+<div class="memproto">
+      <table class="memname">
+        <tr>
+          <td class="memname">__elastic_net_result __gaussian_igd_result </td>
+          <td>(</td>
+          <td class="paramtype">float8[]&#160;</td>
+          <td class="paramname"><em>in_state</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8[]&#160;</td>
+          <td class="paramname"><em>feature_sq</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname"><em>threshold</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname"><em>tolerance</em>&#160;</td>
+        </tr>
+        <tr>
+          <td></td>
+          <td>)</td>
+          <td></td><td></td>
+        </tr>
+      </table>
+</div><div class="memdoc">
+
+</div>
+</div>
+<a class="anchor" id="a244ef9698a82bbd2d28cdce326f8e514"></a>
+<div class="memitem">
+<div class="memproto">
+      <table class="memname">
+        <tr>
+          <td class="memname">float8 __gaussian_igd_state_diff </td>
+          <td>(</td>
+          <td class="paramtype">float8[]&#160;</td>
+          <td class="paramname"><em>state1</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8[]&#160;</td>
+          <td class="paramname"><em>state2</em>&#160;</td>
+        </tr>
+        <tr>
+          <td></td>
+          <td>)</td>
+          <td></td><td></td>
+        </tr>
+      </table>
+</div><div class="memdoc">
+
+</div>
+</div>
+<a class="anchor" id="a493a8cfa6faf0264c7cf9aa80dc9ffb2"></a>
+<div class="memitem">
+<div class="memproto">
+      <table class="memname">
+        <tr>
+          <td class="memname">aggregate float8 [] __gaussian_igd_step </td>
+          <td>(</td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname">[], </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname">, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname">[], </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname">, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname">, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">integer&#160;</td>
+          <td class="paramname">, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname">, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">integer&#160;</td>
+          <td class="paramname">, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname">[], </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname">, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname">&#160;</td>
+        </tr>
+        <tr>
+          <td></td>
+          <td>)</td>
+          <td></td><td></td>
+        </tr>
+      </table>
+</div><div class="memdoc">
+
+</div>
+</div>
+<a class="anchor" id="abd46990f9fd7d216bc7f9e8115f10408"></a>
+<div class="memitem">
+<div class="memproto">
+      <table class="memname">
+        <tr>
+          <td class="memname">aggregate float8 [] 
__gaussian_igd_step_single_seg </td>
+          <td>(</td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname">[], </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname">, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname">[], </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname">, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname">, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">integer&#160;</td>
+          <td class="paramname">, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname">, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">integer&#160;</td>
+          <td class="paramname">, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname">[], </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname">, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname">&#160;</td>
+        </tr>
+        <tr>
+          <td></td>
+          <td>)</td>
+          <td></td><td></td>
+        </tr>
+      </table>
+</div><div class="memdoc">
+
+</div>
+</div>
+<a class="anchor" id="ad8a31dceade418034918a37c34101c18"></a>
+<div class="memitem">
+<div class="memproto">
+      <table class="memname">
+        <tr>
+          <td class="memname">float8 [] __gaussian_igd_transition </td>
+          <td>(</td>
+          <td class="paramtype">float8[]&#160;</td>
+          <td class="paramname"><em>state</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8[]&#160;</td>
+          <td class="paramname"><em>ind_var</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname"><em>dep_var</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8[]&#160;</td>
+          <td class="paramname"><em>pre_state</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname"><em>lambda</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname"><em>alpha</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">integer&#160;</td>
+          <td class="paramname"><em>dimension</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname"><em>stepsize</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">integer&#160;</td>
+          <td class="paramname"><em>total_rows</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8[]&#160;</td>
+          <td class="paramname"><em>xmean</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname"><em>ymean</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname"><em>step_decay</em>&#160;</td>
+        </tr>
+        <tr>
+          <td></td>
+          <td>)</td>
+          <td></td><td></td>
+        </tr>
+      </table>
+</div><div class="memdoc">
+
+</div>
+</div>
+<a class="anchor" id="aa78cde79f1f2caa7c5b38f933001d793"></a>
+<div class="memitem">
+<div class="memproto">
+      <table class="memname">
+        <tr>
+          <td class="memname">boolean elastic_net_binomial_predict </td>
+          <td>(</td>
+          <td class="paramtype">float8[]&#160;</td>
+          <td class="paramname"><em>coefficients</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname"><em>intercept</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8[]&#160;</td>
+          <td class="paramname"><em>ind_var</em>&#160;</td>
+        </tr>
+        <tr>
+          <td></td>
+          <td>)</td>
+          <td></td><td></td>
+        </tr>
+      </table>
+</div><div class="memdoc">
+<dl class="params"><dt>Parameters</dt><dd>
+  <table class="params">
+    <tr><td class="paramname">coefficients</td><td>Logistic fitting 
coefficients </td></tr>
+    <tr><td class="paramname">intercept</td><td>Logistic fitting intercept 
</td></tr>
+    <tr><td class="paramname">ind_var</td><td>Features (independent 
variables)</td></tr>
+  </table>
+  </dd>
+</dl>
+<p>returns a boolean value </p>
+
+</div>
+</div>
+<a class="anchor" id="a308718fd5234bc1007b971a639aadf71"></a>
+<div class="memitem">
+<div class="memproto">
+      <table class="memname">
+        <tr>
+          <td class="memname">float8 elastic_net_binomial_prob </td>
+          <td>(</td>
+          <td class="paramtype">float8[]&#160;</td>
+          <td class="paramname"><em>coefficients</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname"><em>intercept</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8[]&#160;</td>
+          <td class="paramname"><em>ind_var</em>&#160;</td>
+        </tr>
+        <tr>
+          <td></td>
+          <td>)</td>
+          <td></td><td></td>
+        </tr>
+      </table>
+</div><div class="memdoc">
+<dl class="params"><dt>Parameters</dt><dd>
+  <table class="params">
+    <tr><td class="paramname">coefficients</td><td>Logistic fitting 
coefficients </td></tr>
+    <tr><td class="paramname">intercept</td><td>Logistic fitting intercept 
</td></tr>
+    <tr><td class="paramname">ind_var</td><td>Features (independent 
variables)</td></tr>
+  </table>
+  </dd>
+</dl>
+<p>returns a double value, which is the probability of this data point being 
True class </p>
+
+</div>
+</div>
+<a class="anchor" id="a96db4ff4ba3ea363fafbf6c036c19fae"></a>
+<div class="memitem">
+<div class="memproto">
+      <table class="memname">
+        <tr>
+          <td class="memname">float8 elastic_net_gaussian_predict </td>
+          <td>(</td>
+          <td class="paramtype">float8[]&#160;</td>
+          <td class="paramname"><em>coefficients</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname"><em>intercept</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8[]&#160;</td>
+          <td class="paramname"><em>ind_var</em>&#160;</td>
+        </tr>
+        <tr>
+          <td></td>
+          <td>)</td>
+          <td></td><td></td>
+        </tr>
+      </table>
+</div><div class="memdoc">
+<dl class="params"><dt>Parameters</dt><dd>
+  <table class="params">
+    <tr><td class="paramname">coefficients</td><td>Linear fitting coefficients 
</td></tr>
+    <tr><td class="paramname">intercept</td><td>Linear fitting intercept 
</td></tr>
+    <tr><td class="paramname">ind_var</td><td>Features (independent 
variables)</td></tr>
+  </table>
+  </dd>
+</dl>
+<p>returns a double value </p>
+
+</div>
+</div>
+<a class="anchor" id="a3578608204ac9b2d3442ff42977f632b"></a>
+<div class="memitem">
+<div class="memproto">
+      <table class="memname">
+        <tr>
+          <td class="memname">void elastic_net_predict </td>
+          <td>(</td>
+          <td class="paramtype">text&#160;</td>
+          <td class="paramname"><em>tbl_model</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">text&#160;</td>
+          <td class="paramname"><em>tbl_new_source</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">text&#160;</td>
+          <td class="paramname"><em>col_id</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">text&#160;</td>
+          <td class="paramname"><em>tbl_predict</em>&#160;</td>
+        </tr>
+        <tr>
+          <td></td>
+          <td>)</td>
+          <td></td><td></td>
+        </tr>
+      </table>
+</div><div class="memdoc">
+<dl class="params"><dt>Parameters</dt><dd>
+  <table class="params">
+    <tr><td class="paramname">tbl_model</td><td>The result from 
elastic_net_train </td></tr>
+    <tr><td class="paramname">tbl_new_source</td><td>Data table </td></tr>
+    <tr><td class="paramname">col_id</td><td>Unique ID associated with each 
row </td></tr>
+    <tr><td class="paramname">tbl_predict</td><td>Prediction result </td></tr>
+  </table>
+  </dd>
+</dl>
+
+</div>
+</div>
+<a class="anchor" id="aaddbfdfea4207d38ab7e2cd3db876bdc"></a>
+<div class="memitem">
+<div class="memproto">
+      <table class="memname">
+        <tr>
+          <td class="memname">float8 elastic_net_predict </td>
+          <td>(</td>
+          <td class="paramtype">text&#160;</td>
+          <td class="paramname"><em>regress_family</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8[]&#160;</td>
+          <td class="paramname"><em>coefficients</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname"><em>intercept</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8[]&#160;</td>
+          <td class="paramname"><em>ind_var</em>&#160;</td>
+        </tr>
+        <tr>
+          <td></td>
+          <td>)</td>
+          <td></td><td></td>
+        </tr>
+      </table>
+</div><div class="memdoc">
+<dl class="params"><dt>Parameters</dt><dd>
+  <table class="params">
+    <tr><td class="paramname">regress_family</td><td>model family </td></tr>
+    <tr><td class="paramname">coefficients</td><td>The fitting coefficients 
</td></tr>
+    <tr><td class="paramname">intercept</td><td>The fitting intercept 
</td></tr>
+    <tr><td class="paramname">ind_var</td><td>Features (independent variables) 
</td></tr>
+  </table>
+  </dd>
+</dl>
+<dl class="section return"><dt>Returns</dt><dd>float8</dd></dl>
+<p>Note: Please use function <a class="el" 
href="elastic__net_8sql__in.html#a96db4ff4ba3ea363fafbf6c036c19fae" 
title="Prediction for linear models use learned coefficients for a given 
example. ">elastic_net_gaussian_predict()</a> or <a class="el" 
href="elastic__net_8sql__in.html#aa78cde79f1f2caa7c5b38f933001d793" 
title="Prediction for logistic models use learned coefficients for a given 
example. ">elastic_net_binomial_predict()</a> instead if you could. This 
function is not supported in HAWQ and may be deprecated in the future, as users 
are confused between this function and the table output function with the same 
name.</p>
+<p>When regress_family is 'binomial' or 'logistic', this function returns 1 
for True and 0 for False </p>
+
+</div>
+</div>
+<a class="anchor" id="a735038a5090c112505c740a90a203e83"></a>
+<div class="memitem">
+<div class="memproto">
+      <table class="memname">
+        <tr>
+          <td class="memname">void elastic_net_train </td>
+          <td>(</td>
+          <td class="paramtype">text&#160;</td>
+          <td class="paramname"><em>tbl_source</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">text&#160;</td>
+          <td class="paramname"><em>tbl_result</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">text&#160;</td>
+          <td class="paramname"><em>col_dep_var</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">text&#160;</td>
+          <td class="paramname"><em>col_ind_var</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">text&#160;</td>
+          <td class="paramname"><em>regress_family</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname"><em>alpha</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname"><em>lambda_value</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">boolean&#160;</td>
+          <td class="paramname"><em>standardize</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">text&#160;</td>
+          <td class="paramname"><em>grouping_col</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">text&#160;</td>
+          <td class="paramname"><em>optimizer</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">text&#160;</td>
+          <td class="paramname"><em>optimizer_params</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">text&#160;</td>
+          <td class="paramname"><em>excluded</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">integer&#160;</td>
+          <td class="paramname"><em>max_iter</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname"><em>tolerance</em>&#160;</td>
+        </tr>
+        <tr>
+          <td></td>
+          <td>)</td>
+          <td></td><td></td>
+        </tr>
+      </table>
+</div><div class="memdoc">
+<dl class="params"><dt>Parameters</dt><dd>
+  <table class="params">
+    <tr><td class="paramname">tbl_source</td><td>Name of data source table 
</td></tr>
+    <tr><td class="paramname">tbl_result</td><td>Name of the table to store 
the results </td></tr>
+    <tr><td class="paramname">col_ind_var</td><td>Name of independent variable 
column, independent variable is an array </td></tr>
+    <tr><td class="paramname">col_dep_var</td><td>Name of dependent variable 
column </td></tr>
+    <tr><td class="paramname">regress_family</td><td>Response type (gaussian 
or binomial) </td></tr>
+    <tr><td class="paramname">alpha</td><td>The elastic net parameter, [0, 1] 
</td></tr>
+    <tr><td class="paramname">lambda_value</td><td>The regularization 
parameter </td></tr>
+    <tr><td class="paramname">standardize</td><td>Whether to normalize the 
variables (default True) </td></tr>
+    <tr><td class="paramname">grouping_col</td><td>List of columns on which to 
apply grouping (currently only a placeholder) </td></tr>
+    <tr><td class="paramname">optimizer</td><td>The optimization algorithm, 
'fista' or 'igd'. Default is 'fista' </td></tr>
+    <tr><td class="paramname">optimizer_params</td><td>Parameters of the above 
optimizer, the format is 'arg = value, ...'. Default is NULL </td></tr>
+    <tr><td class="paramname">excluded</td><td>Which columns to exclude? 
Default is NULL (applicable only if col_ind_var is set as * or a column of 
array, column names as 'col1, col2, ...' if col_ind_var is '*'; element indices 
as '1,2,3, ...' if col_ind_var is a column of array) </td></tr>
+    <tr><td class="paramname">max_iter</td><td>Maximum number of iterations to 
run the algorithm (default value of 10000) </td></tr>
+    <tr><td class="paramname">tolerance</td><td>Iteration stopping criteria. 
Default is 1e-6 </td></tr>
+  </table>
+  </dd>
+</dl>
+
+</div>
+</div>
+<a class="anchor" id="a148de1ad5e1e60b9df3d3af590c06579"></a>
+<div class="memitem">
+<div class="memproto">
+      <table class="memname">
+        <tr>
+          <td class="memname">void elastic_net_train </td>
+          <td>(</td>
+          <td class="paramtype">text&#160;</td>
+          <td class="paramname"><em>tbl_source</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">text&#160;</td>
+          <td class="paramname"><em>tbl_result</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">text&#160;</td>
+          <td class="paramname"><em>col_ind_var</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">text&#160;</td>
+          <td class="paramname"><em>col_dep_var</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">text&#160;</td>
+          <td class="paramname"><em>regress_family</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname"><em>alpha</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname"><em>lambda_value</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">boolean&#160;</td>
+          <td class="paramname"><em>standardization</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">text&#160;</td>
+          <td class="paramname"><em>grouping_columns</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">text&#160;</td>
+          <td class="paramname"><em>optimizer</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">text&#160;</td>
+          <td class="paramname"><em>optimizer_params</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">text&#160;</td>
+          <td class="paramname"><em>excluded</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">integer&#160;</td>
+          <td class="paramname"><em>max_iter</em>&#160;</td>
+        </tr>
+        <tr>
+          <td></td>
+          <td>)</td>
+          <td></td><td></td>
+        </tr>
+      </table>
+</div><div class="memdoc">
+
+</div>
+</div>
+<a class="anchor" id="a63c8ed415005cc446a59bdc47a09791d"></a>
+<div class="memitem">
+<div class="memproto">
+      <table class="memname">
+        <tr>
+          <td class="memname">void elastic_net_train </td>
+          <td>(</td>
+          <td class="paramtype">text&#160;</td>
+          <td class="paramname"><em>tbl_source</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">text&#160;</td>
+          <td class="paramname"><em>tbl_result</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">text&#160;</td>
+          <td class="paramname"><em>col_ind_var</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">text&#160;</td>
+          <td class="paramname"><em>col_dep_var</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">text&#160;</td>
+          <td class="paramname"><em>regress_family</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname"><em>alpha</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname"><em>lambda_value</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">boolean&#160;</td>
+          <td class="paramname"><em>standardization</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">text&#160;</td>
+          <td class="paramname"><em>grouping_columns</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">text&#160;</td>
+          <td class="paramname"><em>optimizer</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">text&#160;</td>
+          <td class="paramname"><em>optimizer_params</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">text&#160;</td>
+          <td class="paramname"><em>excluded</em>&#160;</td>
+        </tr>
+        <tr>
+          <td></td>
+          <td>)</td>
+          <td></td><td></td>
+        </tr>
+      </table>
+</div><div class="memdoc">
+
+</div>
+</div>
+<a class="anchor" id="ac26504e7ac55190207758356d821a01a"></a>
+<div class="memitem">
+<div class="memproto">
+      <table class="memname">
+        <tr>
+          <td class="memname">void elastic_net_train </td>
+          <td>(</td>
+          <td class="paramtype">text&#160;</td>
+          <td class="paramname"><em>tbl_source</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">text&#160;</td>
+          <td class="paramname"><em>tbl_result</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">text&#160;</td>
+          <td class="paramname"><em>col_ind_var</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">text&#160;</td>
+          <td class="paramname"><em>col_dep_var</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">text&#160;</td>
+          <td class="paramname"><em>regress_family</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname"><em>alpha</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname"><em>lambda_value</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">boolean&#160;</td>
+          <td class="paramname"><em>standardization</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">text&#160;</td>
+          <td class="paramname"><em>grouping_columns</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">text&#160;</td>
+          <td class="paramname"><em>optimizer</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">text&#160;</td>
+          <td class="paramname"><em>optimizer_params</em>&#160;</td>
+        </tr>
+        <tr>
+          <td></td>
+          <td>)</td>
+          <td></td><td></td>
+        </tr>
+      </table>
+</div><div class="memdoc">
+
+</div>
+</div>
+<a class="anchor" id="a7e698f9a0c7a1aa43f4bf9e169dc8b35"></a>
+<div class="memitem">
+<div class="memproto">
+      <table class="memname">
+        <tr>
+          <td class="memname">void elastic_net_train </td>
+          <td>(</td>
+          <td class="paramtype">text&#160;</td>
+          <td class="paramname"><em>tbl_source</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">text&#160;</td>
+          <td class="paramname"><em>tbl_result</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">text&#160;</td>
+          <td class="paramname"><em>col_ind_var</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">text&#160;</td>
+          <td class="paramname"><em>col_dep_var</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">text&#160;</td>
+          <td class="paramname"><em>regress_family</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname"><em>alpha</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <td class="paramtype">float8&#160;</td>
+          <td class="paramname"><em>lambda_value</em>, </td>
+        </tr>
+        <tr>
+          <td class="paramkey"></td>
+          <td></td>
+          <t

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