numpy.ma.maximum_fill_value(obj)
[source]
Return the minimum value that can be represented by the dtype of an object.
This function is useful for calculating a fill value suitable for taking the maximum of an array with a given dtype.
Parameters: |
obj : {ndarray, dtype} An object that can be queried for it’s numeric type. |
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Returns: |
val : scalar The minimum representable value. |
Raises: |
TypeError If |
See also
minimum_fill_value
set_fill_value
MaskedArray.fill_value
>>> import numpy.ma as ma >>> a = np.int8() >>> ma.maximum_fill_value(a) -128 >>> a = np.int32() >>> ma.maximum_fill_value(a) -2147483648
An array of numeric data can also be passed.
>>> a = np.array([1, 2, 3], dtype=np.int8) >>> ma.maximum_fill_value(a) -128 >>> a = np.array([1, 2, 3], dtype=np.float32) >>> ma.maximum_fill_value(a) -inf
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https://docs.scipy.org/doc/numpy-1.12.0/reference/generated/numpy.ma.maximum_fill_value.html