/** {@inheritDoc} */ @Override public void setSubMatrix(final double[][] subMatrix, final int row, final int column) throws NoDataException, OutOfRangeException, DimensionMismatchException, NullArgumentException { if (data == null) { if (row > 0) { throw new MathIllegalStateException(LocalizedFormats.FIRST_ROWS_NOT_INITIALIZED_YET, row); } if (column > 0) { throw new MathIllegalStateException( LocalizedFormats.FIRST_COLUMNS_NOT_INITIALIZED_YET, column); } MathUtils.checkNotNull(subMatrix); final int nRows = subMatrix.length; if (nRows == 0) { throw new NoDataException(LocalizedFormats.AT_LEAST_ONE_ROW); } final int nCols = subMatrix[0].length; if (nCols == 0) { throw new NoDataException(LocalizedFormats.AT_LEAST_ONE_COLUMN); } data = new double[subMatrix.length][nCols]; for (int i = 0; i < data.length; ++i) { if (subMatrix[i].length != nCols) { throw new DimensionMismatchException(subMatrix[i].length, nCols); } System.arraycopy(subMatrix[i], 0, data[i + row], column, nCols); } } else { super.setSubMatrix(subMatrix, row, column); } }