Prepare leakage-safe structured/unstructured process representations

Usage

prepare_structured_unstructured_process_features(
  structured,
  unstructured = NULL,
  fold = NULL,
  builder = NULL,
  id = c("person_id", "item_id"),
  ...
)

Arguments

structured: Structured person/item/window features.
unstructured: Optional sequence/sample object.
fold: Fold identifier. If supplied, representation builders are applied fold-locally using `builder`.
builder: Optional function `(train_structured, train_unstructured, test_structured, test_unstructured, fold_value, ...)` returning a fold result.
id: Optional identifier columns retained in the representation contract.
...: Passed to `builder`.