GetResponse             Extract Response Variable
Pigs                    Body Weights of 48 Pigs in 9 Successive Weeks
cv                      Cross-Validate Regression Models
cvMixed                 Cross-Validate Mixed-Effects Model
cvSelect                Cross-Validate a Model-Selection Procedure
models                  Cross-Validate Several Models Fit to the Same
                        Data
mse                     Cost Functions for Fitted Regression Models
