what kind of function would use folds can i use mydata as holdout in r how to use r holdout what is hold-out validation in r why does r use hold-out validation how to make holdout validation r how to holdout validation in r can i use the folds r to test the rp r how to do hold out validation what is the purpose of r holdout validation? how to implement hold out validation in r which functions do i need to create folds? what is hold out in r how to implement hold-out in r how to do a holdout validation in r r how to do holdout validation which function can be used for hold out validation what js file is the holdout validation in r how do you use holdout validation what is holdout validation in r