matrix.nonzero() Return the indices of the elements that are non-zero. Refer to

recarray.max(axis=None, out=None) Return the maximum along a given axis. Refer to

recarray.setflags(write=None, align=None, uic=None) Set array flags WRITEABLE, ALIGNED, and UPDATEIFCOPY, respectively

recarray.itemset(*args) Insert scalar into an array (scalar is cast to array?s dtype, if possible) There must be

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

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