MaskedArray.dtype Data-type of the array?s elements.

MaskedArray.__setmask__(mask, copy=False)

MaskedArray.toflex()

dtype.flags Bit-flags describing how this data type is to be interpreted. Bit-masks are in numpy.core.multiarray

recarray.ctypes An object to simplify the interaction of the array with the ctypes module. This attribute creates

matrix.partition(kth, axis=-1, kind='introselect', order=None) Rearranges the elements in the array in such a way that

record.setflags() Not implemented (virtual attribute) Class generic exists solely to derive numpy scalars from,

record.dump() Not implemented (virtual attribute) Class generic exists solely to derive numpy scalars from, and possesses

recarray.imag The imaginary part of the array. Examples

Rationale Masked arrays are arrays that may have missing or invalid entries. The numpy.ma module provides a nearly work-alike replacement for numpy