def unregister(self):
        self.publisher.unregister()
        self.clients.clear()
returns min, max, range and linear dimension of training data
dataset/ETHPy150Open RobotWebTools/rosbridge_suite/rosbridge_library/src/rosbridge_library/internal/publishers.py/MultiPublisher.unregister--crossover with--dataset/ETHPy150Open balajiln/mondrianforest/src/mondrianforest.py/get_data_range