344 lines
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344 lines
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<h5 class="offcanvas-title" id="tocOffcanvasLabel">Table of Contents</h5>
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<article data-uid="Hi.Geom.MathNetUtil">
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<h1 id="Hi_Geom_MathNetUtil" data-uid="Hi.Geom.MathNetUtil" class="text-break">
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Class MathNetUtil
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</h1>
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<div class="facts text-secondary">
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<dl><dt>Namespace</dt><dd><a class="xref" href="Hi.html">Hi</a>.<a class="xref" href="Hi.Geom.html">Geom</a></dd></dl>
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<dl><dt>Assembly</dt><dd>HiGeom.dll</dd></dl>
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</div>
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<div class="markdown summary"><p>Utility class for MathNet.Numerics operations.</p>
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</div>
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<div class="markdown conceptual"></div>
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<div class="codewrapper">
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<pre><code class="lang-csharp hljs">public static class MathNetUtil</code></pre>
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</div>
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<dl class="typelist inheritance">
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<dt>Inheritance</dt>
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<dd>
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<div><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object">object</a></div>
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<div><span class="xref">MathNetUtil</span></div>
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</dd>
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</dl>
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<dl class="typelist inheritedMembers">
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<dt>Inherited Members</dt>
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<dd>
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<div>
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<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.equals#system-object-equals(system-object)">object.Equals(object)</a>
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</div>
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<div>
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<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.equals#system-object-equals(system-object-system-object)">object.Equals(object, object)</a>
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</div>
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<div>
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<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.gethashcode">object.GetHashCode()</a>
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</div>
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<div>
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<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.gettype">object.GetType()</a>
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</div>
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<div>
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<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.memberwiseclone">object.MemberwiseClone()</a>
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</div>
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<div>
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<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.referenceequals">object.ReferenceEquals(object, object)</a>
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</div>
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<div>
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<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.tostring">object.ToString()</a>
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</div>
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</dd></dl>
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<h2 class="section" id="methods">Methods
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</h2>
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<a id="Hi_Geom_MathNetUtil_ClearFloatingZero_" data-uid="Hi.Geom.MathNetUtil.ClearFloatingZero*"></a>
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<h3 id="Hi_Geom_MathNetUtil_ClearFloatingZero_MathNet_Numerics_LinearAlgebra_Matrix_System_Double__System_Double_" data-uid="Hi.Geom.MathNetUtil.ClearFloatingZero(MathNet.Numerics.LinearAlgebra.Matrix{System.Double},System.Double)">
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ClearFloatingZero(Matrix<double>, double)
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</h3>
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<div class="markdown level1 summary"><p>the elements which the absolute value lower to <code class="paramref">gap</code> are set to zero.</p>
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</div>
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<div class="markdown level1 conceptual"></div>
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<div class="codewrapper">
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<pre><code class="lang-csharp hljs">public static void ClearFloatingZero(Matrix<double> mat, double gap = 1E-07)</code></pre>
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</div>
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<h4 class="section">Parameters</h4>
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<dl class="parameters">
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<dt><code>mat</code> <span class="xref">Matrix</span><<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>></dt>
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<dd><p>target matrix</p>
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</dd>
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<dt><code>gap</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a></dt>
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<dd><p>gap value</p>
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</dd>
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</dl>
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<a id="Hi_Geom_MathNetUtil_GetCovMatByMultiThread_" data-uid="Hi.Geom.MathNetUtil.GetCovMatByMultiThread*"></a>
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<h3 id="Hi_Geom_MathNetUtil_GetCovMatByMultiThread_System_Collections_Generic_IList_System_Double____System_Action_System_Double__System_Int32_" data-uid="Hi.Geom.MathNetUtil.GetCovMatByMultiThread(System.Collections.Generic.IList{System.Double[]},System.Action{System.Double},System.Int32)">
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GetCovMatByMultiThread(IList<double[]>, Action<double>, int)
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</h3>
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<div class="markdown level1 summary"><p>Calculates the covariance matrix for a list of vectors using multi-threading.</p>
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</div>
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<div class="markdown level1 conceptual"></div>
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<div class="codewrapper">
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<pre><code class="lang-csharp hljs">public static DenseMatrix GetCovMatByMultiThread(IList<double[]> vecs, Action<double> progressAction = null, int progressTickPerVec = 20)</code></pre>
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</div>
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<h4 class="section">Parameters</h4>
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<dl class="parameters">
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<dt><code>vecs</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.collections.generic.ilist-1">IList</a><<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[]></dt>
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<dd><p>The list of vectors to calculate covariance for.</p>
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</dd>
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<dt><code>progressAction</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.action-1">Action</a><<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>></dt>
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<dd><p>Optional action to report progress.</p>
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</dd>
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<dt><code>progressTickPerVec</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.int32">int</a></dt>
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<dd><p>Number of progress ticks per vector processed.</p>
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</dd>
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</dl>
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<h4 class="section">Returns</h4>
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<dl class="parameters">
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<dt><span class="xref">DenseMatrix</span></dt>
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<dd><p>A dense matrix representing the covariance.</p>
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</dd>
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</dl>
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<a id="Hi_Geom_MathNetUtil_GetDiagonalString_" data-uid="Hi.Geom.MathNetUtil.GetDiagonalString*"></a>
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<h3 id="Hi_Geom_MathNetUtil_GetDiagonalString_MathNet_Numerics_LinearAlgebra_Matrix_System_Double__" data-uid="Hi.Geom.MathNetUtil.GetDiagonalString(MathNet.Numerics.LinearAlgebra.Matrix{System.Double})">
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GetDiagonalString(Matrix<double>)
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</h3>
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<div class="markdown level1 summary"><p>Gets a string representation of the diagonal elements of a matrix.</p>
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</div>
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<div class="markdown level1 conceptual"></div>
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<div class="codewrapper">
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<pre><code class="lang-csharp hljs">public static string GetDiagonalString(Matrix<double> src)</code></pre>
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</div>
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<h4 class="section">Parameters</h4>
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<dl class="parameters">
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<dt><code>src</code> <span class="xref">Matrix</span><<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>></dt>
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<dd><p>The source matrix to extract diagonal elements from.</p>
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</dd>
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</dl>
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<h4 class="section">Returns</h4>
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<dl class="parameters">
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<dt><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.string">string</a></dt>
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<dd><p>A comma-separated string of the diagonal elements with 6 significant digits.</p>
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</dd>
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</dl>
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<a id="Hi_Geom_MathNetUtil_GetInversedWeightMat_" data-uid="Hi.Geom.MathNetUtil.GetInversedWeightMat*"></a>
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<h3 id="Hi_Geom_MathNetUtil_GetInversedWeightMat_MathNet_Numerics_LinearAlgebra_Matrix_System_Double__System_Int32__System_Double_System_Double_" data-uid="Hi.Geom.MathNetUtil.GetInversedWeightMat(MathNet.Numerics.LinearAlgebra.Matrix{System.Double},System.Int32@,System.Double,System.Double)">
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GetInversedWeightMat(Matrix<double>, out int, double, double)
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</h3>
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<div class="markdown level1 summary"></div>
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<div class="markdown level1 conceptual"></div>
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<div class="codewrapper">
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<pre><code class="lang-csharp hljs">public static Matrix<double> GetInversedWeightMat(Matrix<double> w, out int abandonedIndex, double minGap = 1E-05, double sumTerminate = 0.99999999)</code></pre>
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</div>
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<h4 class="section">Parameters</h4>
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<dl class="parameters">
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<dt><code>w</code> <span class="xref">Matrix</span><<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>></dt>
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<dd></dd>
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<dt><code>abandonedIndex</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.int32">int</a></dt>
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<dd><p>abandoned index. Inclusive.</p>
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</dd>
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<dt><code>minGap</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a></dt>
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<dd></dd>
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<dt><code>sumTerminate</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a></dt>
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<dd></dd>
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</dl>
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<h4 class="section">Returns</h4>
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<dl class="parameters">
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<dt><span class="xref">Matrix</span><<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>></dt>
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<dd></dd>
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</dl>
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