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

recarray.std(axis=None, dtype=None, out=None, ddof=0, keepdims=False) Returns the standard deviation of the array elements

matrix.byteswap(inplace) Swap the bytes of the array elements Toggle between low-endian and big-endian data representation

dtype.str The array-protocol typestring of this data-type object.

chararray.islower()

numpy.insert(arr, obj, values, axis=None)

class numpy.broadcast

numpy.ma.atleast_3d(*arys) = View inputs as arrays with at least three dimensions.

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

numpy.copyto(dst, src, casting='same_kind', where=None) Copies values from one array to another, broadcasting as necessary.