public Matrix insertRow ( int i , Vector row ) { if ( i > rows || i < 0 ) { throw new IndexOutOfBoundsException ( "Illegal row number, must be 0.." + rows ) ; } Matrix result ; if ( columns == 0 ) { result = blankOfShape ( rows + 1 , row . length ( ) ) ; } else { result = blankOfShape ( rows + 1 , columns ) ; } for ( int ii = 0 ; ii < i ; ii ++ ) { result . setRow ( ii , getRow ( ii ) ) ; } result . setRow ( i , row ) ; for ( int ii = i ; ii < rows ; ii ++ ) { result . setRow ( ii + 1 , getRow ( ii ) ) ; } return result ; }
Adds one row to matrix .