ph-math/src/main/java/com/helger/numbercruncher/matrix/Matrix.java
public void setRow (final RowVector rv, final int r) throws MatrixException
  {
    if ((r < 0) || (r >= m_nRows))
    {
      throw new MatrixException (MatrixException.INVALID_INDEX);
    }
    if (m_nCols != rv.m_nCols)
    {
      throw new MatrixException (MatrixException.INVALID_DIMENSIONS);
    }

    for (int c = 0; c < m_nCols; ++c)
    {
      m_aValues[r][c] = rv.m_aValues[0][c];
    }
  }
public void setRow (final RowVector rv, final int r) throws MatrixException
  {
    if ((r < 0) || (r >= m_nRows))
    {
      throw new MatrixException (MatrixException.INVALID_INDEX);
    }
    if (m_nCols != rv.m_nCols)
    {
      throw new MatrixException (MatrixException.INVALID_DIMENSIONS);
    }

    for (int c = 0; c < m_nCols; ++c)
    {
      m_aValues[r][c] = rv.m_aValues[0][c];
    }
  }
Set a row of this matrix from a row vector.

@param rv
the row vector
@param r
the row index
@throws MatrixException
for an invalid index or an invalid vector size