Question: a. What are the codes in R to construct a 1-step SES (simple exponential smoothing) forecast and how to determine the optimal values of alpha

a. What are the codes in R to construct a 1-step SES (simple exponential smoothing) forecast and how to determine the optimal values of alpha using R.

b. What are the code in R for forecasting of a time series, using 1-step and 5-step forecast, using the R procedure predict.

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