gluonts.mx.representation.dim_expansion module#

class gluonts.mx.representation.dim_expansion.DimExpansion(axis: int = -1, *args, **kwargs)[source]#

Bases: Representation

A class representing a dimension expansion operation along a specified axis.

Parameters:

axis – Axis on which to expand the tensor. (default: -1)

hybrid_forward(F, data: Union[NDArray, Symbol], observed_indicator: Union[NDArray, Symbol], scale: Optional[Union[NDArray, Symbol]], rep_params: List[Union[NDArray, Symbol]], **kwargs) → Tuple[Union[NDArray, Symbol], Union[NDArray, Symbol], List[Union[NDArray, Symbol]]][source]#

Transform the data into the desired representation.

Parameters:

  • F –

  • data – Target data.

  • observed_indicator – Target observed indicator.

  • scale – Pre-computed scale.

  • rep_params – Additional pre-computed representation parameters.

  • **kwargs – Additional block-specfic parameters.

:param : Additional block-specfic parameters.

Returns:

Tuple consisting of the transformed data, the computed scale, and additional parameters to be passed to post_transform.

Return type:

Tuple[Tensor, Tensor, List[Tensor]]