/// <inheritdoc/>
public void copySubMatrix(int[] selectedRows, int[] selectedColumns, double[][] destination)
{
MatrixUtils.checkSubMatrixIndex(this, selectedRows, selectedColumns);
int nCols = selectedColumns.Length;
if ((destination.Length < selectedRows.Length) ||
(destination[0].Length < nCols))
{
throw new MatrixDimensionMismatchException(destination.Length, destination[0].Length,
selectedRows.Length, selectedColumns.Length);
}
for (int i = 0; i < selectedRows.Length; i++)
{
double[] destinationI = destination[i];
if (destinationI.Length < nCols)
{
throw new MatrixDimensionMismatchException(destination.Length, destinationI.Length,
selectedRows.Length, selectedColumns.Length);
}
for (int j = 0; j < selectedColumns.Length; j++)
{
destinationI[j] = getEntry(selectedRows[i], selectedColumns[j]);
}
}
}
/// <inheritdoc/>
public RealMatrix getSubMatrix(int[] selectedRows, int[] selectedColumns)
{
MatrixUtils.checkSubMatrixIndex(this, selectedRows, selectedColumns);
RealMatrix subMatrix = createMatrix(selectedRows.Length, selectedColumns.Length);
subMatrix.walkInOptimizedOrder(new DefaultRealMatrixChangingVisitorAnonymous1(ref selectedRows, ref selectedColumns, this));
return(subMatrix);
}
/// <inheritdoc/>
public new double walkInColumnOrder(RealMatrixPreservingVisitor visitor, int startRow, int endRow, int startColumn, int endColumn)
{
MatrixUtils.checkSubMatrixIndex(this, startRow, endRow, startColumn, endColumn);
visitor.start(getRowDimension(), getColumnDimension(),
startRow, endRow, startColumn, endColumn);
for (int j = startColumn; j <= endColumn; ++j)
{
for (int i = startRow; i <= endRow; ++i)
{
visitor.visit(i, j, data[i][j]);
}
}
return(visitor.end());
}
/// <inheritdoc/>
public double walkInColumnOrder(RealMatrixPreservingVisitor visitor, int startRow, int endRow, int startColumn, int endColumn)
{
MatrixUtils.checkSubMatrixIndex(this, startRow, endRow, startColumn, endColumn);
visitor.start(getRowDimension(), getColumnDimension(),
startRow, endRow, startColumn, endColumn);
for (int column = startColumn; column <= endColumn; ++column)
{
for (int row = startRow; row <= endRow; ++row)
{
visitor.visit(row, column, getEntry(row, column));
}
}
return(visitor.end());
}
/// <inheritdoc/>
public new double walkInRowOrder(RealMatrixChangingVisitor visitor, int startRow, int endRow, int startColumn, int endColumn)
{
MatrixUtils.checkSubMatrixIndex(this, startRow, endRow, startColumn, endColumn);
visitor.start(getRowDimension(), getColumnDimension(),
startRow, endRow, startColumn, endColumn);
for (int i = startRow; i <= endRow; ++i)
{
double[] rowI = data[i];
for (int j = startColumn; j <= endColumn; ++j)
{
rowI[j] = visitor.visit(i, j, rowI[j]);
}
}
return(visitor.end());
}
/// <inheritdoc/>
public double walkInRowOrder(RealMatrixChangingVisitor visitor, int startRow, int endRow, int startColumn, int endColumn)
{
MatrixUtils.checkSubMatrixIndex(this, startRow, endRow, startColumn, endColumn);
visitor.start(getRowDimension(), getColumnDimension(),
startRow, endRow, startColumn, endColumn);
for (int row = startRow; row <= endRow; ++row)
{
for (int column = startColumn; column <= endColumn; ++column)
{
double oldValue = getEntry(row, column);
double newValue = visitor.visit(row, column, oldValue);
setEntry(row, column, newValue);
}
}
return(visitor.end());
}
/// <inheritdoc/>
public RealMatrix getSubMatrix(int startRow, int endRow, int startColumn, int endColumn)
{
MatrixUtils.checkSubMatrixIndex(this, startRow, endRow, startColumn, endColumn);
RealMatrix subMatrix =
createMatrix(endRow - startRow + 1, endColumn - startColumn + 1);
for (int i = startRow; i <= endRow; ++i)
{
for (int j = startColumn; j <= endColumn; ++j)
{
subMatrix.setEntry(i - startRow, j - startColumn, getEntry(i, j));
}
}
return(subMatrix);
}
/// <inheritdoc/>
public void copySubMatrix(int startRow, int endRow, int startColumn, int endColumn, double[][] destination)
{
MatrixUtils.checkSubMatrixIndex(this, startRow, endRow, startColumn, endColumn);
int rowsCount = endRow + 1 - startRow;
int columnsCount = endColumn + 1 - startColumn;
if ((destination.Length < rowsCount) || (destination[0].Length < columnsCount))
{
throw new MatrixDimensionMismatchException(destination.Length, destination[0].Length,
rowsCount, columnsCount);
}
for (int i = 1; i < rowsCount; i++)
{
if (destination[i].Length < columnsCount)
{
throw new MatrixDimensionMismatchException(destination.Length, destination[i].Length,
rowsCount, columnsCount);
}
}
walkInOptimizedOrder(new DefaultRealMatrixPreservingVisitorAnonymous1(ref destination), startRow, endRow, startColumn, endColumn);
}