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171 lines
7.6 KiB
171 lines
7.6 KiB
// <copyright file="MatrixMarketReaderTests.cs" company="Math.NET">
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// Math.NET Numerics, part of the Math.NET Project
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// http://numerics.mathdotnet.com
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// http://github.com/mathnet/mathnet-numerics
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// http://mathnetnumerics.codeplex.com
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//
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// Copyright (c) 2009-2013 Math.NET
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//
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// Permission is hereby granted, free of charge, to any person
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// obtaining a copy of this software and associated documentation
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// files (the "Software"), to deal in the Software without
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// restriction, including without limitation the rights to use,
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// copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following
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// conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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// OTHER DEALINGS IN THE SOFTWARE.
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// </copyright>
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using System.IO;
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using System.Numerics;
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using System.Text;
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using MathNet.Numerics.Data.Text;
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using NUnit.Framework;
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namespace MathNet.Numerics.Data.UnitTests.Text
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{
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[TestFixture]
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public class MatrixMarketReaderTests
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{
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[Test]
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public void CanReadFudao007AsDouble()
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{
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using (Stream stream = TestData.Data.ReadStream("MatrixMarket.fidap007.mtx"))
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{
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var m = MatrixMarketReader.ReadMatrix<double>(stream);
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Assert.IsInstanceOf<LinearAlgebra.Double.SparseMatrix>(m);
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Assert.AreEqual(1633, m.RowCount);
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Assert.AreEqual(1633, m.ColumnCount);
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Assert.GreaterOrEqual(54487, ((LinearAlgebra.Double.SparseMatrix)m).NonZerosCount);
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Assert.Less(46000, ((LinearAlgebra.Double.SparseMatrix)m).NonZerosCount);
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Assert.AreEqual(-6.8596032449032e+06d, m[1604, 1631]);
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Assert.AreEqual(-9.1914585107976e+06d, m[1616, 1628]);
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Assert.AreEqual(7.9403870156486e+07d, m[905, 726]);
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}
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}
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[Test]
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public void CanReadFudao007AsSingle()
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{
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using (Stream stream = TestData.Data.ReadStream("MatrixMarket.fidap007.mtx"))
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{
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var m = MatrixMarketReader.ReadMatrix<float>(stream);
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Assert.IsInstanceOf<LinearAlgebra.Single.SparseMatrix>(m);
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Assert.AreEqual(1633, m.RowCount);
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Assert.AreEqual(1633, m.ColumnCount);
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Assert.GreaterOrEqual(54487, ((LinearAlgebra.Single.SparseMatrix)m).NonZerosCount);
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Assert.Less(46000, ((LinearAlgebra.Single.SparseMatrix)m).NonZerosCount);
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Assert.AreEqual(-6.8596032449032e+06f, m[1604, 1631]);
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Assert.AreEqual(-9.1914585107976e+06f, m[1616, 1628]);
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Assert.AreEqual(7.9403870156486e+07f, m[905, 726]);
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}
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}
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[Test]
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public void CanReadFudao007AsComplex()
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{
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using (TextReader reader = TestData.Data.ReadText("MatrixMarket.fidap007.mtx"))
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{
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var m = MatrixMarketReader.ReadMatrix<Complex>(reader);
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Assert.IsInstanceOf<LinearAlgebra.Complex.SparseMatrix>(m);
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Assert.AreEqual(1633, m.RowCount);
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Assert.AreEqual(1633, m.ColumnCount);
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Assert.GreaterOrEqual(54487, ((LinearAlgebra.Complex.SparseMatrix)m).NonZerosCount);
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Assert.Less(46000, ((LinearAlgebra.Complex.SparseMatrix)m).NonZerosCount);
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Assert.AreEqual(-6.8596032449032e+06d, m[1604, 1631].Real);
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Assert.AreEqual(0.0d, m[1604, 1631].Imaginary);
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Assert.AreEqual(-9.1914585107976e+06d, m[1616, 1628].Real);
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Assert.AreEqual(0.0d, m[1616, 1628].Imaginary);
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Assert.AreEqual(7.9403870156486e+07d, m[905, 726].Real);
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Assert.AreEqual(0.0d, m[905, 726].Imaginary);
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}
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}
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[Test]
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public void CanReadFudao007AsComplex32()
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{
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using (TextReader reader = TestData.Data.ReadText("MatrixMarket.fidap007.mtx"))
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{
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var m = MatrixMarketReader.ReadMatrix<Complex32>(reader);
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Assert.IsInstanceOf<LinearAlgebra.Complex32.SparseMatrix>(m);
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Assert.AreEqual(1633, m.RowCount);
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Assert.AreEqual(1633, m.ColumnCount);
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Assert.GreaterOrEqual(54487, ((LinearAlgebra.Complex32.SparseMatrix)m).NonZerosCount);
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Assert.Less(46000, ((LinearAlgebra.Complex32.SparseMatrix)m).NonZerosCount);
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Assert.AreEqual(-6.8596032449032e+06f, m[1604, 1631].Real);
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Assert.AreEqual(0.0f, m[1604, 1631].Imaginary);
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Assert.AreEqual(-9.1914585107976e+06f, m[1616, 1628].Real);
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Assert.AreEqual(0.0f, m[1616, 1628].Imaginary);
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Assert.AreEqual(7.9403870156486e+07f, m[905, 726].Real);
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Assert.AreEqual(0.0f, m[905, 726].Imaginary);
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}
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}
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[Test]
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public void CanReadSparseHermitianComplexMatrix()
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{
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var sb = new StringBuilder();
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sb.AppendLine("%%MatrixMarket matrix coordinate complex hermitian");
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sb.AppendLine("5 5 7");
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sb.AppendLine("1 1 1.0 0");
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sb.AppendLine("2 2 10.5 0");
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sb.AppendLine("4 2 250.5 22.22");
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sb.AppendLine("3 3 1.5e-2 0");
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sb.AppendLine("4 4 -2.8e2 0.0");
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sb.AppendLine("5 5 12. 0.");
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sb.AppendLine("5 4 0 33.32");
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var m = MatrixMarketReader.ReadMatrix<Complex>(new StringReader(sb.ToString()));
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Assert.IsInstanceOf<LinearAlgebra.Complex.SparseMatrix>(m);
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Assert.AreEqual(5, m.RowCount);
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Assert.AreEqual(5, m.ColumnCount);
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Assert.AreEqual(9, ((LinearAlgebra.Complex.SparseMatrix)m).NonZerosCount);
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Assert.AreEqual(1.0d, m[0, 0].Real);
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Assert.AreEqual(10.5d, m[1, 1].Real);
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Assert.AreEqual(250.5d, m[3, 1].Real);
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Assert.AreEqual(22.22d, m[3, 1].Imaginary);
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Assert.AreEqual(-22.22d, m[1, 3].Imaginary);
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Assert.AreEqual(-280d, m[3, 3].Real);
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Assert.AreEqual(0d, m[4, 3].Real);
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Assert.AreEqual(33.32d, m[4, 3].Imaginary);
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Assert.AreEqual(-33.32d, m[3, 4].Imaginary);
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}
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[Test]
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public void CanReadDenseSkewSymmetricMatrix()
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{
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/* 0 1 2 3
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1 0 6 7
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2 6 0 11
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3 7 11 0 */
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var sb = new StringBuilder();
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sb.AppendLine("%%MatrixMarket matrix array integer skew-symmetric");
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sb.AppendLine("4 4");
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sb.Append("1\n2\n3\n6\n7\n11");
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var m = MatrixMarketReader.ReadMatrix<double>(new StringReader(sb.ToString()));
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Assert.IsInstanceOf<LinearAlgebra.Double.DenseMatrix>(m);
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Assert.AreEqual(4, m.RowCount);
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Assert.AreEqual(4, m.ColumnCount);
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Assert.AreEqual(0.0, m.Diagonal().InfinityNorm());
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Assert.AreEqual(0d, m[0, 0]);
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Assert.AreEqual(1d, m[1, 0]);
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Assert.AreEqual(1d, m[0, 1]);
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Assert.AreEqual(7d, m[3, 1]);
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Assert.AreEqual(7d, m[1, 3]);
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}
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}
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}
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