^j^ dZddlZddlmZmZddlmZmZddlZ ddl m Z m Z m Z mZddlmZmZddlmZerdd lmZGd d eZGd d eZdededefdZy)zExperimental support for a new objective interface with target dimension reduction. .. warning:: Do not use this module unless you want to participate in development. .. versionadded:: 3.2.0 N)ABCabstractmethod) TYPE_CHECKINGTuple)_ensure_np_dtype _is_flattenarray_interfacecuda_array_interface) ArrayLike NumpyOrCupy)_is_cupy_alike)DMatrixc <eZdZdZedededddeeeffdZy) ObjectivezBase class for custom objective functions. .. warning:: Do not use this class unless you want to participate in development. .. versionadded:: 3.2.0 iterationy_preddtrainrreturncy)N)selfrrrs \/var/www/ramen.bs-engineer-server.com/venv/lib/python3.12/site-packages/xgboost/objective.py__call__zObjective.__call__*s'*N) __name__ __module__ __qualname____doc__rintr rrrrrrrsE**&/*9B* y)# $**rrc 8eZdZdZdedededeeefdzfdZy) TreeObjectivezBase class for tree-specific custom objective functions. .. warning:: Do not use this class unless you want to participate in development. .. versionadded:: 3.2.0 rgradhessrNcy)z>Provide a different gradient type for finding tree structures.Nr)rrr#r$s r split_gradzTreeObjective.split_grad<sr)rrrrr r rr&rrrr"r"0s;$-5> y)# $t +rr"array n_samplesrcdt|}t|tjst |s t ||j d|k7rDt|r9tjdt|j||j|z}t|tjr&t||j\}}t|}|St |r t!|}|St |)NzHExpecting `np.ndarray` or `cupy.ndarray` for gradient and hessian. Got: rzvSince 2.1.0, the shape of the gradient and hessian is required to be (n_samples, n_targets) or (n_samples, n_classes).)type isinstancenpndarrayr TypeErrorshaper warningswarn FutureWarningreshapesizerdtyper r )r'r(msg_ interfaces r _grad_arrinfr9Cs e   eRZZ (1Fn {{1~"{5'9  D   iy)@A%$#E5;;7q#E*   (/  nr)rr0abcrrtypingrrnumpyr, _data_utilsrr r r _typingr r compatrcorerrr"r bytesr9rrrrBsb #' ,"**"I& r