* Initial commit

* Add transform, transform_fn

* Add transform = FALSE

* WIP

* Remove transform; Keep transform_fn

* Default transform_fn = function(x) x

* Temporary solution

* #' @include utilities.R

* Add test for fill safe values with transformation

* Modify fill safe value with transformation and add test

* Modify documentation accordingly

* Add pmax(x, 1-x) for roc auc

* Set case_weights = FALSE for now