Adding some noise to the determenistic series. Including the ARIMA search for...

Adding some noise to the determenistic series. Including the ARIMA search for RMSE min function to evaluate the best  P D Q. Got the Integrated ARIMA(0,2,0) with RMSE of 6% which indicates an I(2) or Differentiation  Function of order 2. Doing a manual MinMaxScaling to rescale the values of LTSM, since the RMSE of normalized values are higher in comparison to the original values, with RMSE of 9% for simple LSTM.