pyttb.gcp.fg_setup

Prepare Function and Gradient Handles for GCP OPT.

pyttb.gcp.fg_setup.setup(objective: Objectives, data: tensor | sptensor | None = None, additional_parameter: float | None = None) → Tuple[Callable[[ndarray, ndarray], ndarray], Callable[[ndarray, ndarray], ndarray], float]

Collect the function and gradient handles for GCP.

Parameters:

• objective – Objective function to gather handles for.

• data – Tensor to check for consistency with desired objective function.

• additional_parameter – Additional constant argument provided to objective function if necessary.

Returns:

Function handle, gradient handle, and lower bound.

pyttb.gcp.fg_setup.valid_nonneg(data: tensor | sptensor) → bool

Check if provided data is valid non-negative tensor.

pyttb.gcp.fg_setup.valid_binary(data: tensor | sptensor) → bool

Check if provided data is valid binary tensor.

pyttb.gcp.fg_setup.valid_natural(data: tensor | sptensor) → bool

Check if provided data is valid natural number tensor.