public static MatrixBase <T> SwapRows(
MatrixBase <T> matrix,
int i,
int j)
{
if (!matrix.RowRange.Contains(i))
{
throw new ArgumentOutOfRangeException("rowRange");
}
if (!matrix.RowRange.Contains(j))
{
throw new ArgumentOutOfRangeException("rowRange");
}
if (i == j)
{
return(matrix.Clone());
}
var result = matrix.Clone();
for (var col = 0; col < matrix.ColumnCount; col++)
{
var temp = result.Data[i, col];
result.Data[i, col] = result.Data[j, col];
result.Data[j, col] = temp;
}
return(result);
}
public static MatrixBase <T> SwapColumns(
MatrixBase <T> matrix,
int i,
int j)
{
if (!matrix.ColumnRange.Contains(i))
{
throw new ArgumentOutOfRangeException("columnRange");
}
if (!matrix.ColumnRange.Contains(j))
{
throw new ArgumentOutOfRangeException("columnRange");
}
if (i == j)
{
return(matrix.Clone());
}
var result = matrix.Clone();
for (var row = 0; row < matrix.RowCount; row++)
{
var temp = result.Data[row, i];
result.Data[row, i] = result.Data[row, j];
result.Data[row, j] = temp;
}
return(result);
}