Label_encoder (p.modelkit.0.5.0.doc.modelkit.Modelkit.Label

Module Modelkit.Label_encoder

Reversible sorted encoding of integer classification targets.

Fitting records ascending distinct class labels. transform maps them to contiguous codes starting at zero; inverse_transform rejects invalid codes and restores the original labels. This target-specific utility is deliberately separate from the matrix transformer protocol.

type t

type fitted

val create : unit -> t

val fit : t -> y:Target.classification Target.t -> (fitted, Error.t) result

val transform : 
  fitted ->
  Target.classification Target.t ->
  (Target.classification Target.t, Error.t) result

val inverse_transform : 
  fitted ->
  Target.classification Target.t ->
  (Target.classification Target.t, Error.t) result

val classes : fitted -> int array