属性
ma.masked_array.
fill_value
屏蔽数组的填充值是标量。设置时,“无”将根据数据类型设置为默认值。
实例
>>> for dt in [np.int32, np.int64, np.float64, np.complex128]: ... np.ma.array([0, 1], dtype=dt).get_fill_value() ... 999999 999999 1e+20 (1e+20+0j)
>>> x = np.ma.array([0, 1.], fill_value=-np.inf) >>> x.fill_value -inf >>> x.fill_value = np.pi >>> x.fill_value 3.1415926535897931 # may vary
重置为默认值:
>>> x.fill_value = None >>> x.fill_value 1e+20