/// <summary>
/// Zips two matrices and writes the values side by side
/// </summary>
/// <param name="m1">First matrix</param>
/// <param name="m2">Second matrix</param>
/// <returns>Xml string</returns>
public static string WriteComparison(IIndexableMatrix m1, IIndexableMatrix m2)
{
using var stringWriter = new StringWriter();
using var writer = new XmlTextWriter(stringWriter);
_Write(m1, m2, writer);
writer.Flush();
return(stringWriter.ToString());
}
public static void AssertEqual(IIndexableMatrix m1, IIndexableMatrix m2, int maxDifference = 6)
{
Assert.AreEqual(m1.RowCount, m2.RowCount);
Assert.AreEqual(m1.ColumnCount, m2.ColumnCount);
for (var i = 0; i < m1.RowCount; i++)
{
for (var j = 0; j < m1.ColumnCount; j++)
{
AssertEqual(m1[i, j], m2[i, j], maxDifference);
}
}
}
static void _Write(IIndexableMatrix m1, IIndexableMatrix m2, XmlTextWriter writer)
{
writer.WriteStartElement("matrix");
writer.WriteAttributeString("r1", m1.RowCount.ToString());
writer.WriteAttributeString("r2", m2.RowCount.ToString());
foreach (var row in m1.Rows.Zip(m2.Rows, (x, y) => (x, y)))
{
writer.WriteStartElement("row");
writer.WriteAttributeString("c1", row.Item1.Count.ToString());
writer.WriteAttributeString("c2", row.Item2.Count.ToString());
foreach (var cell in row.Item1.Values.Zip(row.Item2.Values, (i, j) => (i, j)))
{
writer.WriteStartElement("cell");
writer.WriteAttributeString("v1", cell.Item1.ToString(CultureInfo.InvariantCulture));
writer.WriteAttributeString("v2", cell.Item2.ToString(CultureInfo.InvariantCulture));
writer.WriteEndElement();
}
writer.WriteEndElement();
}
writer.WriteEndElement();
}
public GpuMatrix(CudaProvider cuda, IIndexableMatrix matrix) : this(cuda, matrix.RowCount, matrix.ColumnCount, (j, k) => matrix[j, k])
{
}
public IMatrix Create(IIndexableMatrix matrix)
{
return(Create(matrix.RowCount, matrix.ColumnCount, (x, y) => matrix[x, y]));
}
/// <summary>
/// Create a matrix
/// </summary>
/// <param name="lap"></param>
/// <param name="matrix">Indexable matrix to copy</param>
/// <returns></returns>
public static IMatrix CreateMatrix(this ILinearAlgebraProvider lap, IIndexableMatrix matrix)
{
return(lap.CreateMatrix(matrix.RowCount, matrix.ColumnCount, (i, j) => matrix[i, j]));
}
