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<li class="navelem"><a class="el" href="namespacedmlc.html">dmlc</a></li><li class="navelem"><a class="el" href="classdmlc_1_1Row.html">Row</a></li> </ul>
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<div class="header">
<div class="summary">
<a href="#pub-methods">Public Member Functions</a> &#124;
<a href="#pub-attribs">Public Attributes</a> &#124;
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<div class="title">dmlc::Row&lt; IndexType, DType &gt; Class Template Reference</div> </div>
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<p>one row of training instance
<a href="classdmlc_1_1Row.html#details">More...</a></p>
<p><code>#include &lt;<a class="el" href="data_8h_source.html">data.h</a>&gt;</code></p>
<div class="dynheader">
Collaboration diagram for dmlc::Row&lt; IndexType, DType &gt;:</div>
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<div class="center"><img src="classdmlc_1_1Row__coll__graph.png" border="0" usemap="#dmlc_1_1Row_3_01IndexType_00_01DType_01_4_coll__map" alt="Collaboration graph"/></div>
<map name="dmlc_1_1Row_3_01IndexType_00_01DType_01_4_coll__map" id="dmlc_1_1Row_3_01IndexType_00_01DType_01_4_coll__map">
</map>
</div>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:a549662f0815b93aadf433dc5c69ba69c"><td class="memItemLeft" align="right" valign="top">IndexType&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classdmlc_1_1Row.html#a549662f0815b93aadf433dc5c69ba69c">get_field</a> (size_t i) const </td></tr>
<tr class="separator:a549662f0815b93aadf433dc5c69ba69c"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a33d99d09e91940f24df98a7d4171337a"><td class="memItemLeft" align="right" valign="top">IndexType&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classdmlc_1_1Row.html#a33d99d09e91940f24df98a7d4171337a">get_index</a> (size_t i) const </td></tr>
<tr class="separator:a33d99d09e91940f24df98a7d4171337a"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a8b546af3ec456d4584dc99ca9b10791c"><td class="memItemLeft" align="right" valign="top">DType&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classdmlc_1_1Row.html#a8b546af3ec456d4584dc99ca9b10791c">get_value</a> (size_t i) const </td></tr>
<tr class="separator:a8b546af3ec456d4584dc99ca9b10791c"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a49f2bd09daf9d064310c5991fd39c839"><td class="memItemLeft" align="right" valign="top">DType&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classdmlc_1_1Row.html#a49f2bd09daf9d064310c5991fd39c839">get_label</a> () const </td></tr>
<tr class="separator:a49f2bd09daf9d064310c5991fd39c839"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a6a20e660aef8c73bf1f1460e2c7bdb51"><td class="memItemLeft" align="right" valign="top"><a class="el" href="namespacedmlc.html#ab23d78846b42ebd3a436e3bc295b73f4">real_t</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classdmlc_1_1Row.html#a6a20e660aef8c73bf1f1460e2c7bdb51">get_weight</a> () const </td></tr>
<tr class="separator:a6a20e660aef8c73bf1f1460e2c7bdb51"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ab8aa2c00ea27232de57148c919d9f752"><td class="memItemLeft" align="right" valign="top">uint64_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classdmlc_1_1Row.html#ab8aa2c00ea27232de57148c919d9f752">get_qid</a> () const </td></tr>
<tr class="separator:ab8aa2c00ea27232de57148c919d9f752"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a1a82e5fa57d96da4e957b02c4fb3ae81"><td class="memTemplParams" colspan="2">template&lt;typename V &gt; </td></tr>
<tr class="memitem:a1a82e5fa57d96da4e957b02c4fb3ae81"><td class="memTemplItemLeft" align="right" valign="top">V&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="classdmlc_1_1Row.html#a1a82e5fa57d96da4e957b02c4fb3ae81">SDot</a> (const V *<a class="el" href="classdmlc_1_1Row.html#a7d3297d9d1e0345fd5cbcc79523c767b">weight</a>, size_t size) const </td></tr>
<tr class="memdesc:a1a82e5fa57d96da4e957b02c4fb3ae81"><td class="mdescLeft">&#160;</td><td class="mdescRight">helper function to compute dot product of current <a href="#a1a82e5fa57d96da4e957b02c4fb3ae81">More...</a><br /></td></tr>
<tr class="separator:a1a82e5fa57d96da4e957b02c4fb3ae81"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-attribs"></a>
Public Attributes</h2></td></tr>
<tr class="memitem:a696b4316f9e2aa22081a2cc85acc68f9"><td class="memItemLeft" align="right" valign="top">const DType *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classdmlc_1_1Row.html#a696b4316f9e2aa22081a2cc85acc68f9">label</a></td></tr>
<tr class="memdesc:a696b4316f9e2aa22081a2cc85acc68f9"><td class="mdescLeft">&#160;</td><td class="mdescRight">label of the instance <a href="#a696b4316f9e2aa22081a2cc85acc68f9">More...</a><br /></td></tr>
<tr class="separator:a696b4316f9e2aa22081a2cc85acc68f9"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a7d3297d9d1e0345fd5cbcc79523c767b"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="namespacedmlc.html#ab23d78846b42ebd3a436e3bc295b73f4">real_t</a> *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classdmlc_1_1Row.html#a7d3297d9d1e0345fd5cbcc79523c767b">weight</a></td></tr>
<tr class="memdesc:a7d3297d9d1e0345fd5cbcc79523c767b"><td class="mdescLeft">&#160;</td><td class="mdescRight">weight of the instance <a href="#a7d3297d9d1e0345fd5cbcc79523c767b">More...</a><br /></td></tr>
<tr class="separator:a7d3297d9d1e0345fd5cbcc79523c767b"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aa51bcac8083e8f37fb742febe7dc5699"><td class="memItemLeft" align="right" valign="top">const uint64_t *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classdmlc_1_1Row.html#aa51bcac8083e8f37fb742febe7dc5699">qid</a></td></tr>
<tr class="memdesc:aa51bcac8083e8f37fb742febe7dc5699"><td class="mdescLeft">&#160;</td><td class="mdescRight">session-id of the instance <a href="#aa51bcac8083e8f37fb742febe7dc5699">More...</a><br /></td></tr>
<tr class="separator:aa51bcac8083e8f37fb742febe7dc5699"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ab6331543a9e03b7a57e6ac2ff038da81"><td class="memItemLeft" align="right" valign="top">size_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classdmlc_1_1Row.html#ab6331543a9e03b7a57e6ac2ff038da81">length</a></td></tr>
<tr class="memdesc:ab6331543a9e03b7a57e6ac2ff038da81"><td class="mdescLeft">&#160;</td><td class="mdescRight">length of the sparse vector <a href="#ab6331543a9e03b7a57e6ac2ff038da81">More...</a><br /></td></tr>
<tr class="separator:ab6331543a9e03b7a57e6ac2ff038da81"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:af467a5aac22cdfd49952f8487e0aa04e"><td class="memItemLeft" align="right" valign="top">const IndexType *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classdmlc_1_1Row.html#af467a5aac22cdfd49952f8487e0aa04e">field</a></td></tr>
<tr class="memdesc:af467a5aac22cdfd49952f8487e0aa04e"><td class="mdescLeft">&#160;</td><td class="mdescRight">field of each instance <a href="#af467a5aac22cdfd49952f8487e0aa04e">More...</a><br /></td></tr>
<tr class="separator:af467a5aac22cdfd49952f8487e0aa04e"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a485965d516f8d7e236c03cb5e415006a"><td class="memItemLeft" align="right" valign="top">const IndexType *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classdmlc_1_1Row.html#a485965d516f8d7e236c03cb5e415006a">index</a></td></tr>
<tr class="memdesc:a485965d516f8d7e236c03cb5e415006a"><td class="mdescLeft">&#160;</td><td class="mdescRight">index of each instance <a href="#a485965d516f8d7e236c03cb5e415006a">More...</a><br /></td></tr>
<tr class="separator:a485965d516f8d7e236c03cb5e415006a"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ac81aee60c2e4c72303daad9d8932defd"><td class="memItemLeft" align="right" valign="top">const DType *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classdmlc_1_1Row.html#ac81aee60c2e4c72303daad9d8932defd">value</a></td></tr>
<tr class="memdesc:ac81aee60c2e4c72303daad9d8932defd"><td class="mdescLeft">&#160;</td><td class="mdescRight">array value of each instance, this can be NULL indicating every value is set to be 1 <a href="#ac81aee60c2e4c72303daad9d8932defd">More...</a><br /></td></tr>
<tr class="separator:ac81aee60c2e4c72303daad9d8932defd"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><h3>template&lt;typename IndexType, typename DType = real_t&gt;<br />
class dmlc::Row&lt; IndexType, DType &gt;</h3>
<p>one row of training instance </p>
<dl class="tparams"><dt>Template Parameters</dt><dd>
<table class="tparams">
<tr><td class="paramname">IndexType</td><td>type of index </td></tr>
<tr><td class="paramname">DType</td><td>type of data (both label and value will be of DType </td></tr>
</table>
</dd>
</dl>
</div><h2 class="groupheader">Member Function Documentation</h2>
<a class="anchor" id="a549662f0815b93aadf433dc5c69ba69c"></a>
<div class="memitem">
<div class="memproto">
<div class="memtemplate">
template&lt;typename IndexType, typename DType = real_t&gt; </div>
<table class="mlabels">
<tr>
<td class="mlabels-left">
<table class="memname">
<tr>
<td class="memname">IndexType <a class="el" href="classdmlc_1_1Row.html">dmlc::Row</a>&lt; IndexType, DType &gt;::get_field </td>
<td>(</td>
<td class="paramtype">size_t&#160;</td>
<td class="paramname"><em>i</em></td><td>)</td>
<td> const</td>
</tr>
</table>
</td>
<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">inline</span></span> </td>
</tr>
</table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">i</td><td>the input index </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>field for i-th feature </dd></dl>
</div>
</div>
<a class="anchor" id="a33d99d09e91940f24df98a7d4171337a"></a>
<div class="memitem">
<div class="memproto">
<div class="memtemplate">
template&lt;typename IndexType, typename DType = real_t&gt; </div>
<table class="mlabels">
<tr>
<td class="mlabels-left">
<table class="memname">
<tr>
<td class="memname">IndexType <a class="el" href="classdmlc_1_1Row.html">dmlc::Row</a>&lt; IndexType, DType &gt;::get_index </td>
<td>(</td>
<td class="paramtype">size_t&#160;</td>
<td class="paramname"><em>i</em></td><td>)</td>
<td> const</td>
</tr>
</table>
</td>
<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">inline</span></span> </td>
</tr>
</table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">i</td><td>the input index </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>i-th feature </dd></dl>
</div>
</div>
<a class="anchor" id="a49f2bd09daf9d064310c5991fd39c839"></a>
<div class="memitem">
<div class="memproto">
<div class="memtemplate">
template&lt;typename IndexType, typename DType = real_t&gt; </div>
<table class="mlabels">
<tr>
<td class="mlabels-left">
<table class="memname">
<tr>
<td class="memname">DType <a class="el" href="classdmlc_1_1Row.html">dmlc::Row</a>&lt; IndexType, DType &gt;::get_label </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const</td>
</tr>
</table>
</td>
<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">inline</span></span> </td>
</tr>
</table>
</div><div class="memdoc">
<dl class="section return"><dt>Returns</dt><dd>the label of the instance </dd></dl>
</div>
</div>
<a class="anchor" id="ab8aa2c00ea27232de57148c919d9f752"></a>
<div class="memitem">
<div class="memproto">
<div class="memtemplate">
template&lt;typename IndexType, typename DType = real_t&gt; </div>
<table class="mlabels">
<tr>
<td class="mlabels-left">
<table class="memname">
<tr>
<td class="memname">uint64_t <a class="el" href="classdmlc_1_1Row.html">dmlc::Row</a>&lt; IndexType, DType &gt;::get_qid </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const</td>
</tr>
</table>
</td>
<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">inline</span></span> </td>
</tr>
</table>
</div><div class="memdoc">
<dl class="section return"><dt>Returns</dt><dd>the qid of the instance, this function is always safe even when qid == NULL </dd></dl>
</div>
</div>
<a class="anchor" id="a8b546af3ec456d4584dc99ca9b10791c"></a>
<div class="memitem">
<div class="memproto">
<div class="memtemplate">
template&lt;typename IndexType, typename DType = real_t&gt; </div>
<table class="mlabels">
<tr>
<td class="mlabels-left">
<table class="memname">
<tr>
<td class="memname">DType <a class="el" href="classdmlc_1_1Row.html">dmlc::Row</a>&lt; IndexType, DType &gt;::get_value </td>
<td>(</td>
<td class="paramtype">size_t&#160;</td>
<td class="paramname"><em>i</em></td><td>)</td>
<td> const</td>
</tr>
</table>
</td>
<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">inline</span></span> </td>
</tr>
</table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">i</td><td>the input index </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>i-th feature value, this function is always safe even when value == NULL </dd></dl>
</div>
</div>
<a class="anchor" id="a6a20e660aef8c73bf1f1460e2c7bdb51"></a>
<div class="memitem">
<div class="memproto">
<div class="memtemplate">
template&lt;typename IndexType, typename DType = real_t&gt; </div>
<table class="mlabels">
<tr>
<td class="mlabels-left">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="namespacedmlc.html#ab23d78846b42ebd3a436e3bc295b73f4">real_t</a> <a class="el" href="classdmlc_1_1Row.html">dmlc::Row</a>&lt; IndexType, DType &gt;::get_weight </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const</td>
</tr>
</table>
</td>
<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">inline</span></span> </td>
</tr>
</table>
</div><div class="memdoc">
<dl class="section return"><dt>Returns</dt><dd>the weight of the instance, this function is always safe even when weight == NULL </dd></dl>
</div>
</div>
<a class="anchor" id="a1a82e5fa57d96da4e957b02c4fb3ae81"></a>
<div class="memitem">
<div class="memproto">
<div class="memtemplate">
template&lt;typename IndexType, typename DType = real_t&gt; </div>
<div class="memtemplate">
template&lt;typename V &gt; </div>
<table class="mlabels">
<tr>
<td class="mlabels-left">
<table class="memname">
<tr>
<td class="memname">V <a class="el" href="classdmlc_1_1Row.html">dmlc::Row</a>&lt; IndexType, DType &gt;::SDot </td>
<td>(</td>
<td class="paramtype">const V *&#160;</td>
<td class="paramname"><em>weight</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">size_t&#160;</td>
<td class="paramname"><em>size</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td> const</td>
</tr>
</table>
</td>
<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">inline</span></span> </td>
</tr>
</table>
</div><div class="memdoc">
<p>helper function to compute dot product of current </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">weight</td><td>the dense array of weight we want to product </td></tr>
<tr><td class="paramname">size</td><td>the size of the weight vector </td></tr>
</table>
</dd>
</dl>
<dl class="tparams"><dt>Template Parameters</dt><dd>
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<tr><td class="paramname">V</td><td>type of the weight vector </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>the result of dot product </dd></dl>
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<h2 class="groupheader">Member Data Documentation</h2>
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template&lt;typename IndexType, typename DType = real_t&gt; </div>
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<td class="memname">const IndexType* <a class="el" href="classdmlc_1_1Row.html">dmlc::Row</a>&lt; IndexType, DType &gt;::field</td>
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<p>field of each instance </p>
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template&lt;typename IndexType, typename DType = real_t&gt; </div>
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<p>index of each instance </p>
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<p>label of the instance </p>
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template&lt;typename IndexType, typename DType = real_t&gt; </div>
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<p>length of the sparse vector </p>
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<td class="memname">const uint64_t* <a class="el" href="classdmlc_1_1Row.html">dmlc::Row</a>&lt; IndexType, DType &gt;::qid</td>
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<p>session-id of the instance </p>
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<p>array value of each instance, this can be NULL indicating every value is set to be 1 </p>
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template&lt;typename IndexType, typename DType = real_t&gt; </div>
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<td class="memname">const <a class="el" href="namespacedmlc.html#ab23d78846b42ebd3a436e3bc295b73f4">real_t</a>* <a class="el" href="classdmlc_1_1Row.html">dmlc::Row</a>&lt; IndexType, DType &gt;::weight</td>
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<p>weight of the instance </p>
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<hr/>The documentation for this class was generated from the following file:<ul>
<li>/work/mxnet/3rdparty/dmlc-core/include/dmlc/<a class="el" href="data_8h_source.html">data.h</a></li>
</ul>
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