9. Using the data “Melbmax.txt” from the exercises folder:

Use data splitting, leave-one-out cross-validation (PRESS), and AIC on this data (remember the data is daily, f = 365) to find R2 values. If your last name begins with A–F, use the last 3 years as the validation set for data splitting; if you name begins with G–M, use the last 2 years; if your last name begins with N–S, use the first 3 years as the validation set; and if your last name begins with T–Z, use the first 2 years as the validation set.