def ix(self):
if self._ix is None:
self._ix = _NDFrameIndexer(self)
return self._ix
def ix(self):
if self._ix is None:
self._ix = _NDFrameIndexer(self)
return self._ix
def ix(self):
if self._ix is None:
self._ix = _NDFrameIndexer(self)
return self._ix
def ix(self):
if self._ix is None:
self._ix = _NDFrameIndexer(self)
return self._ix