public ColumnVector getColumn ( final int c ) throws MatrixException { if ( ( c < 0 ) || ( c >= m_nCols ) ) { throw new MatrixException ( MatrixException . INVALID_INDEX ) ; } final ColumnVector cv = new ColumnVector ( m_nRows ) ; for ( int r = 0 ; r < m_nRows ; ++ r ) { cv . m_aValues [ r ] [ 0 ] = m_aValues [ r ] [ c ] ; } return cv ; }
Get a column of this matrix .