def create_dataset(self, dataset):
    dataX, dataY = []
    for i in range(len(dataset)-self.look_back):
        a = dataset[i:(i + self.look_back), 0]
        dataX.append(a)
        dataY.append(dataset[i + self.look_back, 0])
    return np.array(dataX), np.array(dataY)