daily_prices = np.array([(4, 3, 3, 1), (5, 4, 3, 6), (6, 3, 2, 7), (3, 9, 7,
    4), (8, 4, 6, 3), (8, 3, 3, 9)], dtype=[('MSFT', 'float'), ('CSCO',
    'float'), ('GOOG', 'float'), ('F', 'float')])
Store NumPy Row and Column Headers