numpy.ma.minimum_fill_value#

ma.minimum_fill_value(obj)[source]#

Return the maximum value that can be represented by the dtype of an object.

This function is useful for calculating a fill value suitable fortaking the minimum of an array with a given dtype.

Parameters:

objndarray, dtype or scalar

An object that can be queried for it’s numeric type.

Returns:

valscalar

The maximum representable value.

Raises:

TypeError

Ifobj isn’t a suitable numeric type.

See also

maximum_fill_value

The inverse function.

set_fill_value

Set the filling value of a masked array.

MaskedArray.fill_value

Return current fill value.

Examples

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>>>importnumpyasnp>>>importnumpy.maasma>>>a=np.int8()>>>ma.minimum_fill_value(a)127>>>a=np.int32()>>>ma.minimum_fill_value(a)2147483647

An array of numeric data can also be passed.

>>>a=np.array([1,2,3],dtype=np.int8)>>>ma.minimum_fill_value(a)127>>>a=np.array([1,2,3],dtype=np.float32)>>>ma.minimum_fill_value(a)inf

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