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<div class="title">DynamicSparseMatrix< _Scalar, _Options, _Index > Class Template Reference</div> </div>
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<div class="textblock"><h3>template<typename _Scalar, int _Options, typename _Index><br/>
class Eigen::DynamicSparseMatrix< _Scalar, _Options, _Index ></h3>
<p>A sparse matrix class designed for matrix assembly purpose. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">_Scalar</td><td>the scalar type, i.e. the type of the coefficients</td></tr>
</table>
</dd>
</dl>
<p>Unlike SparseMatrix, this class provides a much higher degree of flexibility. In particular, it allows random read/write accesses in log(rho*outer_size) where <code>rho</code> is the probability that a coefficient is nonzero and outer_size is the number of columns if the matrix is column-major and the number of rows otherwise.</p>
<p>Internally, the data are stored as a std::vector of compressed vector. The performances of random writes might decrease as the number of nonzeros per inner-vector increase. In practice, we observed very good performance till about 100 nonzeros/vector, and the performance remains relatively good till 500 nonzeros/vectors.</p>
<dl class="section see"><dt>See Also</dt><dd>SparseMatrix </dd></dl>
</div>
<p>Inherits SparseMatrixBase< DynamicSparseMatrix< _Scalar, _Options, _Index > >.</p>
<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:afacbe8d905dd8b00eb52e72c2e938aed"><td class="memItemLeft" align="right" valign="top">Scalar </td><td class="memItemRight" valign="bottom"><a class="el" href="classEigen_1_1DynamicSparseMatrix.html#afacbe8d905dd8b00eb52e72c2e938aed">coeff</a> (Index row, Index col) const </td></tr>
<tr class="separator:afacbe8d905dd8b00eb52e72c2e938aed"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a4386da578a119f7b500d0b22cab2de0e"><td class="memItemLeft" align="right" valign="top">Scalar & </td><td class="memItemRight" valign="bottom"><a class="el" href="classEigen_1_1DynamicSparseMatrix.html#a4386da578a119f7b500d0b22cab2de0e">coeffRef</a> (Index row, Index col)</td></tr>
<tr class="separator:a4386da578a119f7b500d0b22cab2de0e"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ae27d1faefd5879b9832ef3cdcdf1d2a5"><td class="memItemLeft" align="right" valign="top">EIGEN_DEPRECATED </td><td class="memItemRight" valign="bottom"><a class="el" href="classEigen_1_1DynamicSparseMatrix.html#ae27d1faefd5879b9832ef3cdcdf1d2a5">DynamicSparseMatrix</a> ()</td></tr>
<tr class="separator:ae27d1faefd5879b9832ef3cdcdf1d2a5"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a68f99df87a3adde9059896b7ee2e0a05"><td class="memItemLeft" align="right" valign="top">EIGEN_DEPRECATED </td><td class="memItemRight" valign="bottom"><a class="el" href="classEigen_1_1DynamicSparseMatrix.html#a68f99df87a3adde9059896b7ee2e0a05">DynamicSparseMatrix</a> (Index rows, Index cols)</td></tr>
<tr class="separator:a68f99df87a3adde9059896b7ee2e0a05"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a005ecda8d658814897738d01dce9b632"><td class="memTemplParams" colspan="2">template<typename OtherDerived > </td></tr>
<tr class="memitem:a005ecda8d658814897738d01dce9b632"><td class="memTemplItemLeft" align="right" valign="top">EIGEN_DEPRECATED </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="classEigen_1_1DynamicSparseMatrix.html#a005ecda8d658814897738d01dce9b632">DynamicSparseMatrix</a> (const SparseMatrixBase< OtherDerived > &other)</td></tr>
<tr class="separator:a005ecda8d658814897738d01dce9b632"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ac4e13054f9fe39b12600d631680c31cf"><td class="memItemLeft" align="right" valign="top">EIGEN_DEPRECATED void </td><td class="memItemRight" valign="bottom"><a class="el" href="classEigen_1_1DynamicSparseMatrix.html#ac4e13054f9fe39b12600d631680c31cf">endFill</a> ()</td></tr>
<tr class="separator:ac4e13054f9fe39b12600d631680c31cf"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a7e0ac68bd0fd45228319d32dd47c8c03"><td class="memItemLeft" align="right" valign="top">EIGEN_DEPRECATED Scalar & </td><td class="memItemRight" valign="bottom"><a class="el" href="classEigen_1_1DynamicSparseMatrix.html#a7e0ac68bd0fd45228319d32dd47c8c03">fill</a> (Index row, Index col)</td></tr>
<tr class="separator:a7e0ac68bd0fd45228319d32dd47c8c03"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a4fa4b589d0cdf15579e7374ed3b40519"><td class="memItemLeft" align="right" valign="top">EIGEN_DEPRECATED Scalar & </td><td class="memItemRight" valign="bottom"><a class="el" href="classEigen_1_1DynamicSparseMatrix.html#a4fa4b589d0cdf15579e7374ed3b40519">fillrand</a> (Index row, Index col)</td></tr>
<tr class="separator:a4fa4b589d0cdf15579e7374ed3b40519"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a32d626626eee0bc4ade146973f6abb1c"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classEigen_1_1DynamicSparseMatrix.html#a32d626626eee0bc4ade146973f6abb1c">finalize</a> ()</td></tr>
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<tr class="memitem:aae3ed18f1bc031dc106e3b9392e4cee6"><td class="memItemLeft" align="right" valign="top">Scalar & </td><td class="memItemRight" valign="bottom"><a class="el" href="classEigen_1_1DynamicSparseMatrix.html#aae3ed18f1bc031dc106e3b9392e4cee6">insertBack</a> (Index row, Index col)</td></tr>
<tr class="separator:aae3ed18f1bc031dc106e3b9392e4cee6"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a3ca40df6d5751a1db62db65f77ad910d"><td class="memItemLeft" align="right" valign="top">Scalar & </td><td class="memItemRight" valign="bottom"><a class="el" href="classEigen_1_1DynamicSparseMatrix.html#a3ca40df6d5751a1db62db65f77ad910d">insertBackByOuterInner</a> (Index outer, Index inner)</td></tr>
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<tr class="memitem:abe29bfb5f2d88cf2a50ffb577ec6f0a4"><td class="memItemLeft" align="right" valign="top">Index </td><td class="memItemRight" valign="bottom"><a class="el" href="classEigen_1_1DynamicSparseMatrix.html#abe29bfb5f2d88cf2a50ffb577ec6f0a4">nonZeros</a> () const </td></tr>
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<tr class="memitem:ad1813585518a9465421e4e561364b9b5"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classEigen_1_1DynamicSparseMatrix.html#ad1813585518a9465421e4e561364b9b5">prune</a> (Scalar reference, RealScalar epsilon=NumTraits< RealScalar >::dummy_precision())</td></tr>
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<tr class="memitem:ac20f895ce9b73fa7447196855c0d0758"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classEigen_1_1DynamicSparseMatrix.html#ac20f895ce9b73fa7447196855c0d0758">resize</a> (Index rows, Index cols)</td></tr>
<tr class="separator:ac20f895ce9b73fa7447196855c0d0758"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a80ae13cd0a2da4f7a6b9b9e131b52ea2"><td class="memItemLeft" align="right" valign="top">EIGEN_DEPRECATED void </td><td class="memItemRight" valign="bottom"><a class="el" href="classEigen_1_1DynamicSparseMatrix.html#a80ae13cd0a2da4f7a6b9b9e131b52ea2">startFill</a> (Index reserveSize=1000)</td></tr>
<tr class="separator:a80ae13cd0a2da4f7a6b9b9e131b52ea2"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a34ee869bdf82a292f508f781cc359030"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classEigen_1_1DynamicSparseMatrix.html#a34ee869bdf82a292f508f781cc359030">startVec</a> (Index)</td></tr>
<tr class="separator:a34ee869bdf82a292f508f781cc359030"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a73ba3b1e1403972e4f32eb10bfa63215"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classEigen_1_1DynamicSparseMatrix.html#a73ba3b1e1403972e4f32eb10bfa63215">~DynamicSparseMatrix</a> ()</td></tr>
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<h2 class="groupheader">Constructor & Destructor Documentation</h2>
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<p>The class <a class="el" href="classEigen_1_1DynamicSparseMatrix.html" title="A sparse matrix class designed for matrix assembly purpose. ">DynamicSparseMatrix</a> is deprectaed </p>
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<td>(</td>
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<td class="paramname"><em>rows</em>, </td>
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<p>The class <a class="el" href="classEigen_1_1DynamicSparseMatrix.html" title="A sparse matrix class designed for matrix assembly purpose. ">DynamicSparseMatrix</a> is deprectaed </p>
<p>References <a class="el" href="classEigen_1_1DynamicSparseMatrix.html#ac20f895ce9b73fa7447196855c0d0758">DynamicSparseMatrix< _Scalar, _Options, _Index >::resize()</a>.</p>
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<td class="paramtype">const SparseMatrixBase< OtherDerived > & </td>
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<p>The class <a class="el" href="classEigen_1_1DynamicSparseMatrix.html" title="A sparse matrix class designed for matrix assembly purpose. ">DynamicSparseMatrix</a> is deprectaed </p>
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<p>Destructor </p>
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<h2 class="groupheader">Member Function Documentation</h2>
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<td class="memname">Scalar coeff </td>
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<dl class="section return"><dt>Returns</dt><dd>the coefficient value at given position <em>row</em>, <em>col</em> This operation involes a log(rho*outer_size) binary search. </dd></dl>
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<dl class="section return"><dt>Returns</dt><dd>a reference to the coefficient value at given position <em>row</em>, <em>col</em> This operation involes a log(rho*outer_size) binary search. If the coefficient does not exist yet, then a sorted insertion into a sequential buffer is performed. </dd></dl>
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<dl class="section see"><dt>See Also</dt><dd><a class="el" href="classEigen_1_1DynamicSparseMatrix.html#a4fa4b589d0cdf15579e7374ed3b40519">fillrand()</a>, <a class="el" href="classEigen_1_1DynamicSparseMatrix.html#a4386da578a119f7b500d0b22cab2de0e">coeffRef()</a> </dd></dl>
<p>References <a class="el" href="classEigen_1_1DynamicSparseMatrix.html#aae3ed18f1bc031dc106e3b9392e4cee6">DynamicSparseMatrix< _Scalar, _Options, _Index >::insertBack()</a>.</p>
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<td class="memname">EIGEN_DEPRECATED Scalar& fillrand </td>
<td>(</td>
<td class="paramtype">Index </td>
<td class="paramname"><em>row</em>, </td>
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<td class="paramname"><em>col</em> </td>
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<td class="memname">void finalize </td>
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<p>Does nothing: provided for compatibility with SparseMatrix </p>
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<td class="memname">Scalar& insertBack </td>
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<td class="paramname"><em>row</em>, </td>
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<dl class="section return"><dt>Returns</dt><dd>a reference to the non zero coefficient at position <em>row</em>, <em>col</em> assuming that:<ul>
<li>the nonzero does not already exist</li>
<li>the new coefficient is the last one of the given inner vector.</li>
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</dd></dl>
<dl class="section see"><dt>See Also</dt><dd>insert, <a class="el" href="classEigen_1_1DynamicSparseMatrix.html#a3ca40df6d5751a1db62db65f77ad910d">insertBackByOuterInner</a> </dd></dl>
<p>References <a class="el" href="classEigen_1_1DynamicSparseMatrix.html#a3ca40df6d5751a1db62db65f77ad910d">DynamicSparseMatrix< _Scalar, _Options, _Index >::insertBackByOuterInner()</a>.</p>
<p>Referenced by <a class="el" href="classEigen_1_1DynamicSparseMatrix.html#a7e0ac68bd0fd45228319d32dd47c8c03">DynamicSparseMatrix< _Scalar, _Options, _Index >::fill()</a>.</p>
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<td class="memname">Scalar& insertBackByOuterInner </td>
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<td class="paramname"><em>outer</em>, </td>
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<dl class="section see"><dt>See Also</dt><dd><a class="el" href="classEigen_1_1DynamicSparseMatrix.html#aae3ed18f1bc031dc106e3b9392e4cee6">insertBack</a> </dd></dl>
<p>Referenced by <a class="el" href="classEigen_1_1DynamicSparseMatrix.html#aae3ed18f1bc031dc106e3b9392e4cee6">DynamicSparseMatrix< _Scalar, _Options, _Index >::insertBack()</a>.</p>
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<td> const</td>
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<dl class="section return"><dt>Returns</dt><dd>the number of non zero coefficients </dd></dl>
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<td class="memname">void prune </td>
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<td class="paramtype">RealScalar </td>
<td class="paramname"><em>epsilon</em> = <code>NumTraits<RealScalar>::dummy_precision()</code> </td>
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<p>Suppress all nonzeros which are smaller than <em>reference</em> under the tolerence <em>epsilon</em> </p>
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<td class="memname">void resize </td>
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<p>Resize the matrix without preserving the data (the matrix is set to zero) </p>
<p>Referenced by <a class="el" href="classEigen_1_1DynamicSparseMatrix.html#a68f99df87a3adde9059896b7ee2e0a05">DynamicSparseMatrix< _Scalar, _Options, _Index >::DynamicSparseMatrix()</a>.</p>
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<td class="memname">EIGEN_DEPRECATED void startFill </td>
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<td class="paramname"><em>reserveSize</em> = <code>1000</code></td><td>)</td>
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<td class="memname">void startVec </td>
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<p>Does nothing: provided for compatibility with SparseMatrix </p>
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<hr/>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="DynamicSparseMatrix_8h_source.html">DynamicSparseMatrix.h</a></li>
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