computeCVError: Compute Cross-Validated Prediction Error (Internal)
Description
Computes the V-fold CV error for a linear regression model using fast LS fitting.
Usage
computeCVError(x, y, active_set, folds = 5)
Value
A single numeric value (Mean Squared Prediction Error).
Arguments
- x
Design matrix (imputed).
- y
Response vector (imputed).
- active_set
Indices of predictors to include.
- folds
Number of folds (default 5).