R Programming Project (Time Series and AIRMA Model)

Choose
one of the time data series The period of study begins from
2005.01.02 to 2012.12.31 The frequency of data is daily

1 Are the data stationary?

2 Identify a couple of ARIMA models that might be useful in
describing the time series.

3 Estimate the parameters of your best model and do diagnostic
testing on the residuals Do the residuals resemble white noise? If not,
try to find another ARIMA model which fits better

4 Forecast the next 100 daily of data

5 Compare the previous forecasts which those obtained using a
simple exponential smoothing method using information criteria