@property
    def R(self):
        return dot(self._R1_2.T, self._R1_2)
Does this node have any children?
dataset/ETHPy150Open rlabbe/filterpy/filterpy/kalman/square_root.py/SquareRootKalmanFilter.R--crossover with--dataset/ETHPy150Open AnyMesh/anyMesh-Python/example/urwid/treetools.py/ParentNode.has_children