<!-- HTML header for doxygen 1.8.4-->
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
<meta name="generator" content="Doxygen 1.8.10"/>
<meta name="keywords" content="madlib,postgres,greenplum,machine learning,data mining,deep learning,ensemble methods,data science,market basket analysis,affinity analysis,pca,lda,regression,elastic net,huber white,proportional hazards,k-means,latent dirichlet allocation,bayes,support vector machines,svm"/>
<title>MADlib: logistic.sql_in File Reference</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="dynsections.js"></script>
<link href="navtree.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="resize.js"></script>
<script type="text/javascript" src="navtreedata.js"></script>
<script type="text/javascript" src="navtree.js"></script>
<script type="text/javascript">
  $(document).ready(initResizable);
  $(window).load(resizeHeight);
</script>
<link href="search/search.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="search/searchdata.js"></script>
<script type="text/javascript" src="search/search.js"></script>
<script type="text/javascript">
  $(document).ready(function() { init_search(); });
</script>
<script type="text/x-mathjax-config">
  MathJax.Hub.Config({
    extensions: ["tex2jax.js", "TeX/AMSmath.js", "TeX/AMSsymbols.js"],
    jax: ["input/TeX","output/HTML-CSS"],
});
</script><script src="../mathjax/MathJax.js"></script>
<!-- hack in the navigation tree -->
<script type="text/javascript" src="navtree_hack.js"></script>
<link href="doxygen.css" rel="stylesheet" type="text/css" />
<link href="madlib_extra.css" rel="stylesheet" type="text/css"/>
<!-- google analytics -->
<script>
  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
  ga('create', 'UA-45382226-1', 'auto');
  ga('send', 'pageview');
</script>
</head>
<body>
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
<div id="titlearea">
<table cellspacing="0" cellpadding="0">
 <tbody>
 <tr style="height: 56px;">
  <td id="projectlogo"><a href="http://madlib.incubator.apache.org"><img alt="Logo" src="madlib.png" height="50" style="padding-left:0.5em;" border="0"/ ></a></td>
  <td style="padding-left: 0.5em;">
   <div id="projectname">
   <span id="projectnumber">1.8</span>
   </div>
   <div id="projectbrief">User Documentation for MADlib</div>
  </td>
   <td>        <div id="MSearchBox" class="MSearchBoxInactive">
        <span class="left">
          <img id="MSearchSelect" src="search/mag_sel.png"
               onmouseover="return searchBox.OnSearchSelectShow()"
               onmouseout="return searchBox.OnSearchSelectHide()"
               alt=""/>
          <input type="text" id="MSearchField" value="Search" accesskey="S"
               onfocus="searchBox.OnSearchFieldFocus(true)" 
               onblur="searchBox.OnSearchFieldFocus(false)" 
               onkeyup="searchBox.OnSearchFieldChange(event)"/>
          </span><span class="right">
            <a id="MSearchClose" href="javascript:searchBox.CloseResultsWindow()"><img id="MSearchCloseImg" border="0" src="search/close.png" alt=""/></a>
          </span>
        </div>
</td>
 </tr>
 </tbody>
</table>
</div>
<!-- end header part -->
<!-- Generated by Doxygen 1.8.10 -->
<script type="text/javascript">
var searchBox = new SearchBox("searchBox", "search",false,'Search');
</script>
</div><!-- top -->
<div id="side-nav" class="ui-resizable side-nav-resizable">
  <div id="nav-tree">
    <div id="nav-tree-contents">
      <div id="nav-sync" class="sync"></div>
    </div>
  </div>
  <div id="splitbar" style="-moz-user-select:none;" 
       class="ui-resizable-handle">
  </div>
</div>
<script type="text/javascript">
$(document).ready(function(){initNavTree('logistic_8sql__in.html','');});
</script>
<div id="doc-content">
<!-- window showing the filter options -->
<div id="MSearchSelectWindow"
     onmouseover="return searchBox.OnSearchSelectShow()"
     onmouseout="return searchBox.OnSearchSelectHide()"
     onkeydown="return searchBox.OnSearchSelectKey(event)">
</div>

<!-- iframe showing the search results (closed by default) -->
<div id="MSearchResultsWindow">
<iframe src="javascript:void(0)" frameborder="0" 
        name="MSearchResults" id="MSearchResults">
</iframe>
</div>

<div class="header">
  <div class="summary">
<a href="#func-members">Functions</a>  </div>
  <div class="headertitle">
<div class="title">logistic.sql_in File Reference</div>  </div>
</div><!--header-->
<div class="contents">

<p>SQL functions for logistic regression.  
<a href="#details">More...</a></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:a874e9c5a3ebb7efab16730f85d3e8d25"><td class="memItemLeft" align="right" valign="top">float8[]&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="logistic_8sql__in.html#a874e9c5a3ebb7efab16730f85d3e8d25">__logregr_cg_step_transition</a> (float8[], boolean, float8[], float8[])</td></tr>
<tr class="separator:a874e9c5a3ebb7efab16730f85d3e8d25"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aa51c257177aa60df02dcf46bac43982e"><td class="memItemLeft" align="right" valign="top">float8[]&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="logistic_8sql__in.html#aa51c257177aa60df02dcf46bac43982e">__logregr_irls_step_transition</a> (float8[], boolean, float8[], float8[])</td></tr>
<tr class="separator:aa51c257177aa60df02dcf46bac43982e"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a0f4010cefc479196d2d280514f92e5b0"><td class="memItemLeft" align="right" valign="top">float8[]&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="logistic_8sql__in.html#a0f4010cefc479196d2d280514f92e5b0">__logregr_igd_step_transition</a> (float8[], boolean, float8[], float8[])</td></tr>
<tr class="separator:a0f4010cefc479196d2d280514f92e5b0"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ae4f6142efcde3c7d72405f5daf218af7"><td class="memItemLeft" align="right" valign="top">float8[]&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="logistic_8sql__in.html#ae4f6142efcde3c7d72405f5daf218af7">__logregr_cg_step_merge_states</a> (float8[] state1, float8[] state2)</td></tr>
<tr class="separator:ae4f6142efcde3c7d72405f5daf218af7"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a2671672fed9d07b5c8c68a63e3d99e5f"><td class="memItemLeft" align="right" valign="top">float8[]&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="logistic_8sql__in.html#a2671672fed9d07b5c8c68a63e3d99e5f">__logregr_irls_step_merge_states</a> (float8[] state1, float8[] state2)</td></tr>
<tr class="separator:a2671672fed9d07b5c8c68a63e3d99e5f"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a2b23f6e4f9671b511d675c43b42b6544"><td class="memItemLeft" align="right" valign="top">float8[]&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="logistic_8sql__in.html#a2b23f6e4f9671b511d675c43b42b6544">__logregr_igd_step_merge_states</a> (float8[] state1, float8[] state2)</td></tr>
<tr class="separator:a2b23f6e4f9671b511d675c43b42b6544"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a909ec8b38aac9dd78ed7fb52e5e5910d"><td class="memItemLeft" align="right" valign="top">float8[]&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="logistic_8sql__in.html#a909ec8b38aac9dd78ed7fb52e5e5910d">__logregr_cg_step_final</a> (float8[] state)</td></tr>
<tr class="separator:a909ec8b38aac9dd78ed7fb52e5e5910d"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a45fbe307010fcb5890828e35a398c0a6"><td class="memItemLeft" align="right" valign="top">float8[]&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="logistic_8sql__in.html#a45fbe307010fcb5890828e35a398c0a6">__logregr_irls_step_final</a> (float8[] state)</td></tr>
<tr class="separator:a45fbe307010fcb5890828e35a398c0a6"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a44b3499c913ddcc44b0b9e18e2069fed"><td class="memItemLeft" align="right" valign="top">float8[]&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="logistic_8sql__in.html#a44b3499c913ddcc44b0b9e18e2069fed">__logregr_igd_step_final</a> (float8[] state)</td></tr>
<tr class="separator:a44b3499c913ddcc44b0b9e18e2069fed"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a0037d0e2891dff4ec1b4e856b9ac103c"><td class="memItemLeft" align="right" valign="top">aggregate float8[]&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="logistic_8sql__in.html#a0037d0e2891dff4ec1b4e856b9ac103c">__logregr_cg_step</a> (boolean y, float8[] x, float8[] previous_state)</td></tr>
<tr class="separator:a0037d0e2891dff4ec1b4e856b9ac103c"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a7bdf5d39836d8b8826e38a9c15a613c0"><td class="memItemLeft" align="right" valign="top">aggregate float8[]&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="logistic_8sql__in.html#a7bdf5d39836d8b8826e38a9c15a613c0">__logregr_irls_step</a> (boolean y, float8[] x, float8[] previous_state)</td></tr>
<tr class="separator:a7bdf5d39836d8b8826e38a9c15a613c0"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a782cd8580dac58cc0a70d534dd696801"><td class="memItemLeft" align="right" valign="top">aggregate float8[]&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="logistic_8sql__in.html#a782cd8580dac58cc0a70d534dd696801">__logregr_igd_step</a> (boolean y, float8[] x, float8[] previous_state)</td></tr>
<tr class="separator:a782cd8580dac58cc0a70d534dd696801"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aabc041a54449405558d8a522f0e7d995"><td class="memItemLeft" align="right" valign="top">float8&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="logistic_8sql__in.html#aabc041a54449405558d8a522f0e7d995">__logregr_cg_step_distance</a> (float8[] state1, float8[] state2)</td></tr>
<tr class="separator:aabc041a54449405558d8a522f0e7d995"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:af5fcfe75b7724e0b93901e64e3f8c1b4"><td class="memItemLeft" align="right" valign="top">__logregr_result&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="logistic_8sql__in.html#af5fcfe75b7724e0b93901e64e3f8c1b4">__logregr_cg_result</a> (float8[] state)</td></tr>
<tr class="separator:af5fcfe75b7724e0b93901e64e3f8c1b4"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a56962d63f19d6c4672f9772f6d2b2810"><td class="memItemLeft" align="right" valign="top">float8&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="logistic_8sql__in.html#a56962d63f19d6c4672f9772f6d2b2810">__logregr_irls_step_distance</a> (float8[] state1, float8[] state2)</td></tr>
<tr class="separator:a56962d63f19d6c4672f9772f6d2b2810"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aaaf5ea72356ebae7e808b54c495bc501"><td class="memItemLeft" align="right" valign="top">__logregr_result&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="logistic_8sql__in.html#aaaf5ea72356ebae7e808b54c495bc501">__logregr_irls_result</a> (float8[] state)</td></tr>
<tr class="separator:aaaf5ea72356ebae7e808b54c495bc501"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a993ec0ebec0084170902c0cefc489ae8"><td class="memItemLeft" align="right" valign="top">float8&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="logistic_8sql__in.html#a993ec0ebec0084170902c0cefc489ae8">__logregr_igd_step_distance</a> (float8[] state1, float8[] state2)</td></tr>
<tr class="separator:a993ec0ebec0084170902c0cefc489ae8"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ab0b377e0dc63a7d79602643a6ee827c9"><td class="memItemLeft" align="right" valign="top">__logregr_result&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="logistic_8sql__in.html#ab0b377e0dc63a7d79602643a6ee827c9">__logregr_igd_result</a> (float8[] state)</td></tr>
<tr class="separator:ab0b377e0dc63a7d79602643a6ee827c9"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a74210a7ef513dfcbdfdd9f3b37bfe428"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="logistic_8sql__in.html#a74210a7ef513dfcbdfdd9f3b37bfe428">logregr_train</a> (varchar source_table, varchar out_table, varchar dependent_varname, varchar independent_varname, varchar grouping_cols, integer max_iter, varchar optimizer, float8 tolerance, boolean verbose)</td></tr>
<tr class="memdesc:a74210a7ef513dfcbdfdd9f3b37bfe428"><td class="mdescLeft">&#160;</td><td class="mdescRight">Compute logistic-regression coefficients and diagnostic statistics.  <a href="#a74210a7ef513dfcbdfdd9f3b37bfe428">More...</a><br /></td></tr>
<tr class="separator:a74210a7ef513dfcbdfdd9f3b37bfe428"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a58dfa3dc74518179c584ae535e331a7d"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="logistic_8sql__in.html#a58dfa3dc74518179c584ae535e331a7d">logregr_train</a> (varchar source_table, varchar out_table, varchar dependent_varname, varchar independent_varname)</td></tr>
<tr class="separator:a58dfa3dc74518179c584ae535e331a7d"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a327660873183347c9e00bdbd01983a63"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="logistic_8sql__in.html#a327660873183347c9e00bdbd01983a63">logregr_train</a> (varchar source_table, varchar out_table, varchar dependent_varname, varchar independent_varname, varchar grouping_cols)</td></tr>
<tr class="separator:a327660873183347c9e00bdbd01983a63"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a3c217840f2fbe1dcd53ba15c4111b86a"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="logistic_8sql__in.html#a3c217840f2fbe1dcd53ba15c4111b86a">logregr_train</a> (varchar source_table, varchar out_table, varchar dependent_varname, varchar independent_varname, varchar grouping_cols, integer max_iter)</td></tr>
<tr class="separator:a3c217840f2fbe1dcd53ba15c4111b86a"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aa321fe6cffa263b1eb612b15e8fb9a6d"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="logistic_8sql__in.html#aa321fe6cffa263b1eb612b15e8fb9a6d">logregr_train</a> (varchar source_table, varchar out_table, varchar dependent_varname, varchar independent_varname, varchar grouping_cols, integer max_iter, varchar optimizer)</td></tr>
<tr class="separator:aa321fe6cffa263b1eb612b15e8fb9a6d"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a6b5ffd41b8b00e4c4417653250a265fb"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="logistic_8sql__in.html#a6b5ffd41b8b00e4c4417653250a265fb">logregr_train</a> (varchar source_table, varchar out_table, varchar dependent_varname, varchar independent_varname, varchar grouping_cols, integer max_iter, varchar optimizer, float8 tolerance)</td></tr>
<tr class="separator:a6b5ffd41b8b00e4c4417653250a265fb"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a3fbbdd2e6633816136d2958db9b4b6a3"><td class="memItemLeft" align="right" valign="top">text&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="logistic_8sql__in.html#a3fbbdd2e6633816136d2958db9b4b6a3">logregr_train</a> (text message)</td></tr>
<tr class="separator:a3fbbdd2e6633816136d2958db9b4b6a3"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ada5fbc0833e802e7e6c1b489330ca15f"><td class="memItemLeft" align="right" valign="top">text&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="logistic_8sql__in.html#ada5fbc0833e802e7e6c1b489330ca15f">logregr_train</a> ()</td></tr>
<tr class="separator:ada5fbc0833e802e7e6c1b489330ca15f"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a4ded9be5c8b111dbb3109efaad83d69e"><td class="memItemLeft" align="right" valign="top">float8&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="logistic_8sql__in.html#a4ded9be5c8b111dbb3109efaad83d69e">logistic</a> (float8 x)</td></tr>
<tr class="memdesc:a4ded9be5c8b111dbb3109efaad83d69e"><td class="mdescLeft">&#160;</td><td class="mdescRight">Evaluate the usual logistic function in an under-/overflow-safe way.  <a href="#a4ded9be5c8b111dbb3109efaad83d69e">More...</a><br /></td></tr>
<tr class="separator:a4ded9be5c8b111dbb3109efaad83d69e"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:abb60fcbfa7f13c4b62950b3ae5ee46b2"><td class="memItemLeft" align="right" valign="top">boolean&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="logistic_8sql__in.html#abb60fcbfa7f13c4b62950b3ae5ee46b2">logregr_predict</a> (float8[] coef, float8[] col_ind_var)</td></tr>
<tr class="memdesc:abb60fcbfa7f13c4b62950b3ae5ee46b2"><td class="mdescLeft">&#160;</td><td class="mdescRight">Predict the boolean value of a dependent variable for a specific independent variable value in a logistic regression model.  <a href="#abb60fcbfa7f13c4b62950b3ae5ee46b2">More...</a><br /></td></tr>
<tr class="separator:abb60fcbfa7f13c4b62950b3ae5ee46b2"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:acc8af7a39e7b0d604c2760d9d6bd0b5e"><td class="memItemLeft" align="right" valign="top">text&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="logistic_8sql__in.html#acc8af7a39e7b0d604c2760d9d6bd0b5e">logregr_predict</a> (text message)</td></tr>
<tr class="separator:acc8af7a39e7b0d604c2760d9d6bd0b5e"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:af3eae2b8acd75d4c6c4db8c79489c58f"><td class="memItemLeft" align="right" valign="top">text&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="logistic_8sql__in.html#af3eae2b8acd75d4c6c4db8c79489c58f">logregr_predict</a> ()</td></tr>
<tr class="separator:af3eae2b8acd75d4c6c4db8c79489c58f"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:acb8bcffac549a0968f6ee7c2d7f34d5e"><td class="memItemLeft" align="right" valign="top">float8&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="logistic_8sql__in.html#acb8bcffac549a0968f6ee7c2d7f34d5e">logregr_predict_prob</a> (float8[] coef, float8[] col_ind_var)</td></tr>
<tr class="memdesc:acb8bcffac549a0968f6ee7c2d7f34d5e"><td class="mdescLeft">&#160;</td><td class="mdescRight">Compute the probability of the boolean dependent variable being True for a specific independent variable iin a logistic regression model.  <a href="#acb8bcffac549a0968f6ee7c2d7f34d5e">More...</a><br /></td></tr>
<tr class="separator:acb8bcffac549a0968f6ee7c2d7f34d5e"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a4db4a78e264cc4868c931f5b5cf8b414"><td class="memItemLeft" align="right" valign="top">text&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="logistic_8sql__in.html#a4db4a78e264cc4868c931f5b5cf8b414">logregr_predict_prob</a> (text message)</td></tr>
<tr class="separator:a4db4a78e264cc4868c931f5b5cf8b414"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a75dba5248d75cd6c5d2fb69f944ce479"><td class="memItemLeft" align="right" valign="top">text&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="logistic_8sql__in.html#a75dba5248d75cd6c5d2fb69f944ce479">logregr_predict_prob</a> ()</td></tr>
<tr class="separator:a75dba5248d75cd6c5d2fb69f944ce479"><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>January 2011</dd></dl>
<dl class="section see"><dt>See also</dt><dd>For a brief introduction to <a class="el" href="logistic_8sql__in.html#a4ded9be5c8b111dbb3109efaad83d69e" title="Evaluate the usual logistic function in an under-/overflow-safe way. ">logistic</a> regression, see the module description <a class="el" href="group__grp__logreg.html">Logistic Regression</a>. </dd></dl>
</div><h2 class="groupheader">Function Documentation</h2>
<a class="anchor" id="af5fcfe75b7724e0b93901e64e3f8c1b4"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">__logregr_result __logregr_cg_result </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="a0037d0e2891dff4ec1b4e856b9ac103c"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">aggregate float8 [] __logregr_cg_step </td>
          <td>(</td>
          <td class="paramtype">boolean&#160;</td>
          <td class="paramname"><em>y</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">float8[]&#160;</td>
          <td class="paramname"><em>x</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">float8[]&#160;</td>
          <td class="paramname"><em>previous_state</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="aabc041a54449405558d8a522f0e7d995"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">float8 __logregr_cg_step_distance </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="a909ec8b38aac9dd78ed7fb52e5e5910d"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">float8 [] __logregr_cg_step_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="ae4f6142efcde3c7d72405f5daf218af7"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">float8 [] __logregr_cg_step_merge_states </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="a874e9c5a3ebb7efab16730f85d3e8d25"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">float8 [] __logregr_cg_step_transition </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">[]&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

</div>
</div>
<a class="anchor" id="ab0b377e0dc63a7d79602643a6ee827c9"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">__logregr_result __logregr_igd_result </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="a782cd8580dac58cc0a70d534dd696801"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">aggregate float8 [] __logregr_igd_step </td>
          <td>(</td>
          <td class="paramtype">boolean&#160;</td>
          <td class="paramname"><em>y</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">float8[]&#160;</td>
          <td class="paramname"><em>x</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">float8[]&#160;</td>
          <td class="paramname"><em>previous_state</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="a993ec0ebec0084170902c0cefc489ae8"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">float8 __logregr_igd_step_distance </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="a44b3499c913ddcc44b0b9e18e2069fed"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">float8 [] __logregr_igd_step_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="a2b23f6e4f9671b511d675c43b42b6544"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">float8 [] __logregr_igd_step_merge_states </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="a0f4010cefc479196d2d280514f92e5b0"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">float8 [] __logregr_igd_step_transition </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">[]&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

</div>
</div>
<a class="anchor" id="aaaf5ea72356ebae7e808b54c495bc501"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">__logregr_result __logregr_irls_result </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="a7bdf5d39836d8b8826e38a9c15a613c0"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">aggregate float8 [] __logregr_irls_step </td>
          <td>(</td>
          <td class="paramtype">boolean&#160;</td>
          <td class="paramname"><em>y</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">float8[]&#160;</td>
          <td class="paramname"><em>x</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">float8[]&#160;</td>
          <td class="paramname"><em>previous_state</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="a56962d63f19d6c4672f9772f6d2b2810"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">float8 __logregr_irls_step_distance </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="a45fbe307010fcb5890828e35a398c0a6"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">float8 [] __logregr_irls_step_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="a2671672fed9d07b5c8c68a63e3d99e5f"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">float8 [] __logregr_irls_step_merge_states </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="aa51c257177aa60df02dcf46bac43982e"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">float8 [] __logregr_irls_step_transition </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">[]&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

</div>
</div>
<a class="anchor" id="a4ded9be5c8b111dbb3109efaad83d69e"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">float8 logistic </td>
          <td>(</td>
          <td class="paramtype">float8&#160;</td>
          <td class="paramname"><em>x</em></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">x</td><td></td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>\( \frac{1}{1 + \exp(-x)} \)</dd></dl>
<p>Evaluating this expression directly can lead to under- or overflows. This function performs the evaluation in a safe manner, making use of the following observations:</p>
<p>In order for the outcome of \( \exp(x) \) to be within the range of the minimum positive double-precision number (i.e., \( 2^{-1074} \)) and the maximum positive double-precision number (i.e., \( (1 + (1 - 2^{52})) * 2^{1023}) \), \( x \) has to be within the natural logarithm of these numbers, so roughly in between -744 and 709. However, \( 1 + \exp(x) \) will just evaluate to 1 if \( \exp(x) \) is less than the machine epsilon (i.e., \( 2^{-52} \)) or, equivalently, if \( x \) is less than the natural logarithm of that; i.e., in any case if \( x \) is less than -37. Note that taking the reciprocal of the largest double-precision number will not cause an underflow. Hence, no further checks are necessary. </p>

</div>
</div>
<a class="anchor" id="abb60fcbfa7f13c4b62950b3ae5ee46b2"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">boolean logregr_predict </td>
          <td>(</td>
          <td class="paramtype">float8[]&#160;</td>
          <td class="paramname"><em>coef</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">float8[]&#160;</td>
          <td class="paramname"><em>col_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">coef</td><td>Coefficients obtained by running logistic regression. </td></tr>
    <tr><td class="paramname">col_ind</td><td>Independent variable array </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Boolean value of the dependent variable</dd></dl>
<p>This function computes the dot product of the independent variables and the coefficients. This requires the length of the two vectors to be the same. </p>

</div>
</div>
<a class="anchor" id="acc8af7a39e7b0d604c2760d9d6bd0b5e"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">text logregr_predict </td>
          <td>(</td>
          <td class="paramtype">text&#160;</td>
          <td class="paramname"><em>message</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">

</div>
</div>
<a class="anchor" id="af3eae2b8acd75d4c6c4db8c79489c58f"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">text logregr_predict </td>
          <td>(</td>
          <td class="paramname"></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">

</div>
</div>
<a class="anchor" id="acb8bcffac549a0968f6ee7c2d7f34d5e"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">float8 logregr_predict_prob </td>
          <td>(</td>
          <td class="paramtype">float8[]&#160;</td>
          <td class="paramname"><em>coef</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">float8[]&#160;</td>
          <td class="paramname"><em>col_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">coef</td><td>Coefficients obtained by running logistic regression. </td></tr>
    <tr><td class="paramname">col_ind</td><td>Independent variable array </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Probability value of the dependent variable being True</dd></dl>
<p>This function computes the dot product of the independent variables and the coefficients, hence requires the length of the two vectors to be the same. </p>

</div>
</div>
<a class="anchor" id="a4db4a78e264cc4868c931f5b5cf8b414"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">text logregr_predict_prob </td>
          <td>(</td>
          <td class="paramtype">text&#160;</td>
          <td class="paramname"><em>message</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">

</div>
</div>
<a class="anchor" id="a75dba5248d75cd6c5d2fb69f944ce479"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">text logregr_predict_prob </td>
          <td>(</td>
          <td class="paramname"></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">

</div>
</div>
<a class="anchor" id="a74210a7ef513dfcbdfdd9f3b37bfe428"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">void logregr_train </td>
          <td>(</td>
          <td class="paramtype">varchar&#160;</td>
          <td class="paramname"><em>source_table</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">varchar&#160;</td>
          <td class="paramname"><em>out_table</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">varchar&#160;</td>
          <td class="paramname"><em>dependent_varname</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">varchar&#160;</td>
          <td class="paramname"><em>independent_varname</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">varchar&#160;</td>
          <td class="paramname"><em>grouping_cols</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">varchar&#160;</td>
          <td class="paramname"><em>optimizer</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">float8&#160;</td>
          <td class="paramname"><em>tolerance</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">boolean&#160;</td>
          <td class="paramname"><em>verbose</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">
<p>To include an intercept in the model, set one coordinate in the <code>independentVariables</code> array to 1.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">source_table</td><td>Name of the source relation containing the training data </td></tr>
    <tr><td class="paramname">out_table</td><td>Name of the output relation to store the model results <pre class="fragment">              Columns of the output relation are as follows:
               - &lt;tt&gt;coef FLOAT8[]&lt;/tt&gt; - Array of coefficients, \form#78
               - &lt;tt&gt;log_likelihood FLOAT8&lt;/tt&gt; - Log-likelihood \form#79
               - &lt;tt&gt;std_err FLOAT8[]&lt;/tt&gt; - Array of standard errors,
</pre> \( \mathit{se}(c_1), \dots, \mathit{se}(c_k) \)<ul>
<li><code>z_stats FLOAT8[]</code> - Array of Wald z-statistics, \( \boldsymbol z \)</li>
<li><code>p_values FLOAT8[]</code> - Array of Wald p-values, \( \boldsymbol p \)</li>
<li><code>odds_ratios FLOAT8[]</code>: Array of odds ratios, \( \mathit{odds}(c_1), \dots, \mathit{odds}(c_k) \)</li>
<li><code>condition_no FLOAT8</code> - The condition number of matrix \( X^T A X \) during the iteration immediately <em>preceding</em> convergence (i.e., \( A \) is computed using the coefficients of the previous iteration) </li>
</ul>
</td></tr>
    <tr><td class="paramname">dependent_varname</td><td>Name of the dependent column (of type BOOLEAN) </td></tr>
    <tr><td class="paramname">independent_varname</td><td>Name of the independent column (of type DOUBLE PRECISION[]) </td></tr>
    <tr><td class="paramname">grouping_col</td><td>Comma delimited list of column names to group-by </td></tr>
    <tr><td class="paramname">max_iter</td><td>The maximum number of iterations </td></tr>
    <tr><td class="paramname">optimizer</td><td>The optimizer to use (either <code>'irls'</code>/<code>'newton'</code> for iteratively reweighted least squares or <code>'cg'</code> for conjugent gradient) </td></tr>
    <tr><td class="paramname">tolerance</td><td>The difference between log-likelihood values in successive iterations that should indicate convergence. This value should be non-negative and a zero value here disables the convergence criterion, and execution will only stop after <code>maxNumIterations</code> iterations. </td></tr>
    <tr><td class="paramname">verbose</td><td>If true, any error or warning message will be printed to the console (irrespective of the 'client_min_messages' set by server). If false, no error/warning message is printed to console.</td></tr>
  </table>
  </dd>
</dl>
<dl class="section user"><dt>Usage</dt><dd><ul>
<li>Get vector of coefficients \( \boldsymbol c \) and all diagnostic statistics:<br />
 <pre>SELECT logregr_train('<em>sourceName</em>', '<em>outName</em>'
          '<em>dependentVariable</em>', '<em>independentVariables</em>');
         SELECT * from outName;
   </pre></li>
<li>Get vector of coefficients \( \boldsymbol c \):<br />
 <pre>SELECT coef from outName;</pre></li>
<li>Get a subset of the output columns, e.g., only the array of coefficients \( \boldsymbol c \), the log-likelihood of determination \( l(\boldsymbol c) \), and the array of p-values \( \boldsymbol p \): <pre>SELECT coef, log_likelihood, p_values FROM outName;</pre></li>
</ul>
</dd></dl>
<dl class="section note"><dt>Note</dt><dd>This function starts an iterative algorithm. It is not an aggregate function. Source, output, and column names have to be passed as strings (due to limitations of the SQL syntax). </dd></dl>

</div>
</div>
<a class="anchor" id="a58dfa3dc74518179c584ae535e331a7d"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">void logregr_train </td>
          <td>(</td>
          <td class="paramtype">varchar&#160;</td>
          <td class="paramname"><em>source_table</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">varchar&#160;</td>
          <td class="paramname"><em>out_table</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">varchar&#160;</td>
          <td class="paramname"><em>dependent_varname</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">varchar&#160;</td>
          <td class="paramname"><em>independent_varname</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="a327660873183347c9e00bdbd01983a63"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">void logregr_train </td>
          <td>(</td>
          <td class="paramtype">varchar&#160;</td>
          <td class="paramname"><em>source_table</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">varchar&#160;</td>
          <td class="paramname"><em>out_table</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">varchar&#160;</td>
          <td class="paramname"><em>dependent_varname</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">varchar&#160;</td>
          <td class="paramname"><em>independent_varname</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">varchar&#160;</td>
          <td class="paramname"><em>grouping_cols</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="a3c217840f2fbe1dcd53ba15c4111b86a"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">void logregr_train </td>
          <td>(</td>
          <td class="paramtype">varchar&#160;</td>
          <td class="paramname"><em>source_table</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">varchar&#160;</td>
          <td class="paramname"><em>out_table</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">varchar&#160;</td>
          <td class="paramname"><em>dependent_varname</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">varchar&#160;</td>
          <td class="paramname"><em>independent_varname</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">varchar&#160;</td>
          <td class="paramname"><em>grouping_cols</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="aa321fe6cffa263b1eb612b15e8fb9a6d"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">void logregr_train </td>
          <td>(</td>
          <td class="paramtype">varchar&#160;</td>
          <td class="paramname"><em>source_table</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">varchar&#160;</td>
          <td class="paramname"><em>out_table</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">varchar&#160;</td>
          <td class="paramname"><em>dependent_varname</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">varchar&#160;</td>
          <td class="paramname"><em>independent_varname</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">varchar&#160;</td>
          <td class="paramname"><em>grouping_cols</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">varchar&#160;</td>
          <td class="paramname"><em>optimizer</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="a6b5ffd41b8b00e4c4417653250a265fb"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">void logregr_train </td>
          <td>(</td>
          <td class="paramtype">varchar&#160;</td>
          <td class="paramname"><em>source_table</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">varchar&#160;</td>
          <td class="paramname"><em>out_table</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">varchar&#160;</td>
          <td class="paramname"><em>dependent_varname</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">varchar&#160;</td>
          <td class="paramname"><em>independent_varname</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">varchar&#160;</td>
          <td class="paramname"><em>grouping_cols</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">varchar&#160;</td>
          <td class="paramname"><em>optimizer</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="a3fbbdd2e6633816136d2958db9b4b6a3"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">text logregr_train </td>
          <td>(</td>
          <td class="paramtype">text&#160;</td>
          <td class="paramname"><em>message</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">

</div>
</div>
<a class="anchor" id="ada5fbc0833e802e7e6c1b489330ca15f"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">text logregr_train </td>
          <td>(</td>
          <td class="paramname"></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">

</div>
</div>
</div><!-- contents -->
</div><!-- doc-content -->
<!-- start footer part -->
<div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
  <ul>
    <li class="navelem"><a class="el" href="dir_68267d1309a1af8e8297ef4c3efbcdba.html">src</a></li><li class="navelem"><a class="el" href="dir_efbcf68973d247bbf15f9eecae7f24e3.html">ports</a></li><li class="navelem"><a class="el" href="dir_a4a48839224ef8488facbffa8a397967.html">postgres</a></li><li class="navelem"><a class="el" href="dir_dc596537ad427a4d866006d1a3e1fe29.html">modules</a></li><li class="navelem"><a class="el" href="dir_ac52a4b89b7b1b1591f2952b5cbd041a.html">regress</a></li><li class="navelem"><a class="el" href="logistic_8sql__in.html">logistic.sql_in</a></li>
    <li class="footer">Generated on Mon Jul 27 2015 20:37:45 for MADlib by
    <a href="http://www.doxygen.org/index.html">
    <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.10 </li>
  </ul>
</div>
</body>
</html>