def log(self):
        self.matrix.eliminate_zeros()
        mat = self.matrix.tocoo()
        mat.data = np.log(mat.data)
        return self._new_instance(mat)
Return the user data for the hook function.
dataset/ETHPy150Open jimmycallin/pydsm/pydsm/indexmatrix.py/IndexMatrix.log--crossover with--dataset/ETHPy150Open AppScale/appscale/AppServer/google/appengine/api/apiproxy_stub_map.py/UserRPC.user_data