Fit a periodic model to the Ozone, Arosa (or Ozone Azusa ) data in The Exercises folder (“Ozone Arosa.txt” and “Ozone Azura.txt”, Exercises folder or DataMarket – Time Series Data Library –...

Fit a periodic model to the Ozone, Arosa (or Ozone Azusa ) data in The Exercises folder (“Ozone Arosa.txt” and “Ozone Azura.txt”, Exercises folder or DataMarket – Time Series Data Library – Meteorology) using a Fourier series (paired trigonometric functions). Use model selection and filtering to find the best model.