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<p>Principal Component Analysis.
<a href="#details">More...</a></p>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:a6f350d49e6a7523c2b1556c5558f4b85"><td class="memItemLeft" align="right" valign="top">PCA for Dense matrices void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="pca_8sql__in.html#a6f350d49e6a7523c2b1556c5558f4b85">pca_train</a> (text source_table, text pc_table, text <a class="el" href="svd_8sql__in.html#a47e65465f3637e9526635e59dbd504de">row_id</a>, integer <a class="el" href="svd_8sql__in.html#ac55562e3550918c83a7a81f0ddc007dc">k</a>, text grouping_cols, integer lanczos_iter, boolean use_correlation, text <a class="el" href="svd_8sql__in.html#a27459d3fd308919ea6749251e41e415e">result_summary_table</a>)</td></tr>
<tr class="separator:a6f350d49e6a7523c2b1556c5558f4b85"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a5634af9beb7936506ec2f5775c81d038"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="pca_8sql__in.html#a5634af9beb7936506ec2f5775c81d038">pca_train</a> (text source_table, text pc_table, text <a class="el" href="svd_8sql__in.html#a47e65465f3637e9526635e59dbd504de">row_id</a>, integer <a class="el" href="svd_8sql__in.html#ac55562e3550918c83a7a81f0ddc007dc">k</a>, text grouping_cols, integer lanczos_iter, boolean use_correlation)</td></tr>
<tr class="separator:a5634af9beb7936506ec2f5775c81d038"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a2d1cfcf6a7c8a9c69808ec8927b900d1"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="pca_8sql__in.html#a2d1cfcf6a7c8a9c69808ec8927b900d1">pca_train</a> (text source_table, text pc_table, text <a class="el" href="svd_8sql__in.html#a47e65465f3637e9526635e59dbd504de">row_id</a>, integer <a class="el" href="svd_8sql__in.html#ac55562e3550918c83a7a81f0ddc007dc">k</a>, text grouping_cols, integer lanczos_iter)</td></tr>
<tr class="separator:a2d1cfcf6a7c8a9c69808ec8927b900d1"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a7b52d3800ed2d529ccd2a1c2417a986d"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="pca_8sql__in.html#a7b52d3800ed2d529ccd2a1c2417a986d">pca_train</a> (text source_table, text pc_table, text <a class="el" href="svd_8sql__in.html#a47e65465f3637e9526635e59dbd504de">row_id</a>, integer <a class="el" href="svd_8sql__in.html#ac55562e3550918c83a7a81f0ddc007dc">k</a>, text grouping_cols)</td></tr>
<tr class="separator:a7b52d3800ed2d529ccd2a1c2417a986d"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a13f55d8f0ddc1ed37dc06dfd1f797f8d"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="pca_8sql__in.html#a13f55d8f0ddc1ed37dc06dfd1f797f8d">pca_train</a> (text source_table, text pc_table, text <a class="el" href="svd_8sql__in.html#a47e65465f3637e9526635e59dbd504de">row_id</a>, integer <a class="el" href="svd_8sql__in.html#ac55562e3550918c83a7a81f0ddc007dc">k</a>)</td></tr>
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<tr class="memitem:a3bdb5967e072a36265fafe9f37164622"><td class="memItemLeft" align="right" valign="top">text&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="pca_8sql__in.html#a3bdb5967e072a36265fafe9f37164622">pca_train</a> (varchar usage_string)</td></tr>
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<tr class="memitem:a31abf88e67a446a4f789764aa2c61e85"><td class="memItemLeft" align="right" valign="top">varchar&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="pca_8sql__in.html#a31abf88e67a446a4f789764aa2c61e85">pca_train</a> ()</td></tr>
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<tr class="memitem:a9c819bc0f3fa1f02234d62cd5a8f391e"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="pca_8sql__in.html#a9c819bc0f3fa1f02234d62cd5a8f391e">pca_sparse_train</a> (text source_table, text pc_table, text <a class="el" href="svd_8sql__in.html#a47e65465f3637e9526635e59dbd504de">row_id</a>, text col_id, text val_id, integer row_dim, integer col_dim, integer <a class="el" href="svd_8sql__in.html#ac55562e3550918c83a7a81f0ddc007dc">k</a>, text grouping_cols, integer lanczos_iter, boolean use_correlation, text <a class="el" href="svd_8sql__in.html#a27459d3fd308919ea6749251e41e415e">result_summary_table</a>)</td></tr>
<tr class="separator:a9c819bc0f3fa1f02234d62cd5a8f391e"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a5f808e855a139ac21876bd8d7f6c94f9"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="pca_8sql__in.html#a5f808e855a139ac21876bd8d7f6c94f9">pca_sparse_train</a> (text source_table, text pc_table, text <a class="el" href="svd_8sql__in.html#a47e65465f3637e9526635e59dbd504de">row_id</a>, text col_id, text val_id, integer row_dim, integer col_dim, integer <a class="el" href="svd_8sql__in.html#ac55562e3550918c83a7a81f0ddc007dc">k</a>, text grouping_cols, integer lanczos_iter, boolean use_correlation)</td></tr>
<tr class="separator:a5f808e855a139ac21876bd8d7f6c94f9"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ace5236fb2133c297eca85ab788e6dfc2"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="pca_8sql__in.html#ace5236fb2133c297eca85ab788e6dfc2">pca_sparse_train</a> (text source_table, text pc_table, text <a class="el" href="svd_8sql__in.html#a47e65465f3637e9526635e59dbd504de">row_id</a>, text col_id, text val_id, integer row_dim, integer col_dim, integer <a class="el" href="svd_8sql__in.html#ac55562e3550918c83a7a81f0ddc007dc">k</a>, text grouping_cols, integer lanczos_iter)</td></tr>
<tr class="separator:ace5236fb2133c297eca85ab788e6dfc2"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a370a0cd4c3776db9716783877caaaea5"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="pca_8sql__in.html#a370a0cd4c3776db9716783877caaaea5">pca_sparse_train</a> (text source_table, text pc_table, text <a class="el" href="svd_8sql__in.html#a47e65465f3637e9526635e59dbd504de">row_id</a>, text col_id, text val_id, integer row_dim, integer col_dim, integer <a class="el" href="svd_8sql__in.html#ac55562e3550918c83a7a81f0ddc007dc">k</a>, text grouping_cols)</td></tr>
<tr class="separator:a370a0cd4c3776db9716783877caaaea5"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a47c9234d8f49a7467b4e2d172eb6958f"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="pca_8sql__in.html#a47c9234d8f49a7467b4e2d172eb6958f">pca_sparse_train</a> (text source_table, text pc_table, text <a class="el" href="svd_8sql__in.html#a47e65465f3637e9526635e59dbd504de">row_id</a>, text col_id, text val_id, integer row_dim, integer col_dim, integer <a class="el" href="svd_8sql__in.html#ac55562e3550918c83a7a81f0ddc007dc">k</a>)</td></tr>
<tr class="separator:a47c9234d8f49a7467b4e2d172eb6958f"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aa3e70c278fc1d4ab52396192691a8a3e"><td class="memItemLeft" align="right" valign="top">text&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="pca_8sql__in.html#aa3e70c278fc1d4ab52396192691a8a3e">pca_sparse_train</a> (varchar usage_string)</td></tr>
<tr class="separator:aa3e70c278fc1d4ab52396192691a8a3e"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a1a62d21cdcc12ff8a54ea572f5af7073"><td class="memItemLeft" align="right" valign="top">text&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="pca_8sql__in.html#a1a62d21cdcc12ff8a54ea572f5af7073">pca_sparse_train</a> ()</td></tr>
<tr class="separator:a1a62d21cdcc12ff8a54ea572f5af7073"><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 see"><dt>See Also</dt><dd>For a brief introduction to Principal Component Analysis, see the module description <a class="el" href="group__grp__pca.html">Dimensionality Reduction</a>. </dd></dl>
</div><h2 class="groupheader">Function Documentation</h2>
<a class="anchor" id="a9c819bc0f3fa1f02234d62cd5a8f391e"></a>
<div class="memitem">
<div class="memproto">
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<td class="memname">void pca_sparse_train </td>
<td>(</td>
<td class="paramtype">text&#160;</td>
<td class="paramname"><em>source_table</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">text&#160;</td>
<td class="paramname"><em>pc_table</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">text&#160;</td>
<td class="paramname"><em>row_id</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>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">text&#160;</td>
<td class="paramname"><em>val_id</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">integer&#160;</td>
<td class="paramname"><em>row_dim</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">integer&#160;</td>
<td class="paramname"><em>col_dim</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">integer&#160;</td>
<td class="paramname"><em>k</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">text&#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>lanczos_iter</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">boolean&#160;</td>
<td class="paramname"><em>use_correlation</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">text&#160;</td>
<td class="paramname"><em>result_summary_table</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
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</table>
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</div>
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<a class="anchor" id="a5f808e855a139ac21876bd8d7f6c94f9"></a>
<div class="memitem">
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<td class="memname">void pca_sparse_train </td>
<td>(</td>
<td class="paramtype">text&#160;</td>
<td class="paramname"><em>source_table</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">text&#160;</td>
<td class="paramname"><em>pc_table</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">text&#160;</td>
<td class="paramname"><em>row_id</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>val_id</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">integer&#160;</td>
<td class="paramname"><em>row_dim</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">integer&#160;</td>
<td class="paramname"><em>col_dim</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">integer&#160;</td>
<td class="paramname"><em>k</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">text&#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>lanczos_iter</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">boolean&#160;</td>
<td class="paramname"><em>use_correlation</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
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</div><div class="memdoc">
</div>
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<a class="anchor" id="ace5236fb2133c297eca85ab788e6dfc2"></a>
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<td class="memname">void pca_sparse_train </td>
<td>(</td>
<td class="paramtype">text&#160;</td>
<td class="paramname"><em>source_table</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">text&#160;</td>
<td class="paramname"><em>pc_table</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">text&#160;</td>
<td class="paramname"><em>row_id</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>val_id</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">integer&#160;</td>
<td class="paramname"><em>row_dim</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">integer&#160;</td>
<td class="paramname"><em>col_dim</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">integer&#160;</td>
<td class="paramname"><em>k</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">text&#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>lanczos_iter</em>&#160;</td>
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<td class="memname">void pca_sparse_train </td>
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<td class="paramname"><em>source_table</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">text&#160;</td>
<td class="paramname"><em>pc_table</em>, </td>
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<td class="paramname"><em>row_id</em>, </td>
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<td class="paramname"><em>col_id</em>, </td>
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<td class="paramname"><em>val_id</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">integer&#160;</td>
<td class="paramname"><em>row_dim</em>, </td>
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<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">integer&#160;</td>
<td class="paramname"><em>col_dim</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">integer&#160;</td>
<td class="paramname"><em>k</em>, </td>
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<td class="paramtype">text&#160;</td>
<td class="paramname"><em>grouping_cols</em>&#160;</td>
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<td class="memname">void pca_sparse_train </td>
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<td class="paramname"><em>source_table</em>, </td>
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<tr>
<td class="paramkey"></td>
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<td class="paramtype">text&#160;</td>
<td class="paramname"><em>pc_table</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">text&#160;</td>
<td class="paramname"><em>row_id</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">text&#160;</td>
<td class="paramname"><em>col_id</em>, </td>
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<td class="paramtype">text&#160;</td>
<td class="paramname"><em>val_id</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">integer&#160;</td>
<td class="paramname"><em>row_dim</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">integer&#160;</td>
<td class="paramname"><em>col_dim</em>, </td>
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<td class="memname">text pca_sparse_train </td>
<td>(</td>
<td class="paramtype">varchar&#160;</td>
<td class="paramname"><em>usage_string</em>)</td><td></td>
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<td class="memname">text pca_sparse_train </td>
<td>(</td>
<td class="paramname">)</td><td></td>
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<a class="anchor" id="a6f350d49e6a7523c2b1556c5558f4b85"></a>
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<td class="memname">PCA for Dense matrices void pca_train </td>
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<td class="paramtype">text&#160;</td>
<td class="paramname"><em>source_table</em>, </td>
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<tr>
<td class="paramkey"></td>
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<td class="paramtype">text&#160;</td>
<td class="paramname"><em>pc_table</em>, </td>
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<td class="paramname"><em>row_id</em>, </td>
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<td class="paramtype">integer&#160;</td>
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<td class="paramname"><em>grouping_cols</em>, </td>
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<td class="paramname"><em>lanczos_iter</em>, </td>
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<td class="paramtype">boolean&#160;</td>
<td class="paramname"><em>use_correlation</em>, </td>
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<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">text&#160;</td>
<td class="paramname"><em>result_summary_table</em>&#160;</td>
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<td class="memname">void pca_train </td>
<td>(</td>
<td class="paramtype">text&#160;</td>
<td class="paramname"><em>source_table</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">text&#160;</td>
<td class="paramname"><em>pc_table</em>, </td>
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<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">text&#160;</td>
<td class="paramname"><em>row_id</em>, </td>
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<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">integer&#160;</td>
<td class="paramname"><em>k</em>, </td>
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<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">text&#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>lanczos_iter</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">boolean&#160;</td>
<td class="paramname"><em>use_correlation</em>&#160;</td>
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<td>)</td>
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<a class="anchor" id="a2d1cfcf6a7c8a9c69808ec8927b900d1"></a>
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<td class="memname">void pca_train </td>
<td>(</td>
<td class="paramtype">text&#160;</td>
<td class="paramname"><em>source_table</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">text&#160;</td>
<td class="paramname"><em>pc_table</em>, </td>
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<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">text&#160;</td>
<td class="paramname"><em>row_id</em>, </td>
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<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">integer&#160;</td>
<td class="paramname"><em>k</em>, </td>
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<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">text&#160;</td>
<td class="paramname"><em>grouping_cols</em>, </td>
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<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">integer&#160;</td>
<td class="paramname"><em>lanczos_iter</em>&#160;</td>
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<tr>
<td></td>
<td>)</td>
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<a class="anchor" id="a7b52d3800ed2d529ccd2a1c2417a986d"></a>
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<td class="memname">void pca_train </td>
<td>(</td>
<td class="paramtype">text&#160;</td>
<td class="paramname"><em>source_table</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">text&#160;</td>
<td class="paramname"><em>pc_table</em>, </td>
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<tr>
<td class="paramkey"></td>
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<td class="paramtype">text&#160;</td>
<td class="paramname"><em>row_id</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">integer&#160;</td>
<td class="paramname"><em>k</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">text&#160;</td>
<td class="paramname"><em>grouping_cols</em>&#160;</td>
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<tr>
<td></td>
<td>)</td>
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<a class="anchor" id="a13f55d8f0ddc1ed37dc06dfd1f797f8d"></a>
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<td class="memname">void pca_train </td>
<td>(</td>
<td class="paramtype">text&#160;</td>
<td class="paramname"><em>source_table</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">text&#160;</td>
<td class="paramname"><em>pc_table</em>, </td>
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<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">text&#160;</td>
<td class="paramname"><em>row_id</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">integer&#160;</td>
<td class="paramname"><em>k</em>&#160;</td>
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<a class="anchor" id="a3bdb5967e072a36265fafe9f37164622"></a>
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<td class="memname">text pca_train </td>
<td>(</td>
<td class="paramtype">varchar&#160;</td>
<td class="paramname"><em>usage_string</em>)</td><td></td>
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<td class="memname">varchar pca_train </td>
<td>(</td>
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