a
    þdC  ã                   @   sr   d dl mZmZmZ d dlmZ d dlmZ d dlm	Z	 d dl
mZ d dlmZmZ es^dgZG dd	„ d	e	ƒZd
S )é    )ÚOptionalÚSequenceÚUnion)ÚTensor©Úretrieval_r_precision)ÚRetrievalMetric)Ú_MATPLOTLIB_AVAILABLE)Ú_AX_TYPEÚ_PLOT_OUT_TYPEúRetrievalRPrecision.plotc                   @   sˆ   e Zd ZU dZdZeed< dZeed< dZeed< dZ	e
ed< d	Ze
ed
< eeedœdd„Zdeeeee f  ee edœdd„ZdS )ÚRetrievalRPrecisionaÛ  Compute `IR R-Precision`_.

    Works with binary target data. Accepts float predictions from a model output.

    As input to ``forward`` and ``update`` the metric accepts the following input:

    - ``preds`` (:class:`~torch.Tensor`): A float tensor of shape ``(N, ...)``
    - ``target`` (:class:`~torch.Tensor`): A long or bool tensor of shape ``(N, ...)``
    - ``indexes`` (:class:`~torch.Tensor`): A long tensor of shape ``(N, ...)`` which indicate to which query a
      prediction belongs

    As output to ``forward`` and ``compute`` the metric returns the following output:

    - ``rp`` (:class:`~torch.Tensor`): A single-value tensor with the r-precision of the predictions ``preds``
      w.r.t. the labels ``target``.

    All ``indexes``, ``preds`` and ``target`` must have the same dimension and will be flatten at the beginning,
    so that for example, a tensor of shape ``(N, M)`` is treated as ``(N * M, )``. Predictions will be first grouped by
    ``indexes`` and then will be computed as the mean of the metric over each query.

    Args:
        empty_target_action:
            Specify what to do with queries that do not have at least a positive ``target``. Choose from:

            - ``'neg'``: those queries count as ``0.0`` (default)
            - ``'pos'``: those queries count as ``1.0``
            - ``'skip'``: skip those queries; if all queries are skipped, ``0.0`` is returned
            - ``'error'``: raise a ``ValueError``

        ignore_index: Ignore predictions where the target is equal to this number.
        kwargs: Additional keyword arguments, see :ref:`Metric kwargs` for more info.

    Raises:
        ValueError:
            If ``empty_target_action`` is not one of ``error``, ``skip``, ``neg`` or ``pos``.
        ValueError:
            If ``ignore_index`` is not `None` or an integer.

    Example:
        >>> from torch import tensor
        >>> from torchmetrics.retrieval import RetrievalRPrecision
        >>> indexes = tensor([0, 0, 0, 1, 1, 1, 1])
        >>> preds = tensor([0.2, 0.3, 0.5, 0.1, 0.3, 0.5, 0.2])
        >>> target = tensor([False, False, True, False, True, False, True])
        >>> p2 = RetrievalRPrecision()
        >>> p2(preds, target, indexes=indexes)
        tensor(0.7500)

    FÚis_differentiableTÚhigher_is_betterÚfull_state_updateg        Úplot_lower_boundg      ð?Úplot_upper_bound)ÚpredsÚtargetÚreturnc                 C   s
   t ||ƒS )Nr   )Úselfr   r   © r   úk/var/www/html/stable-diffusion-webui/venv/lib/python3.9/site-packages/torchmetrics/retrieval/r_precision.pyÚ_metricT   s    zRetrievalRPrecision._metricN)ÚvalÚaxr   c                 C   s   |   ||¡S )ag  Plot a single or multiple values from the metric.

        Args:
            val: Either a single result from calling `metric.forward` or `metric.compute` or a list of these results.
                If no value is provided, will automatically call `metric.compute` and plot that result.
            ax: An matplotlib axis object. If provided will add plot to that axis

        Returns:
            Figure and Axes object

        Raises:
            ModuleNotFoundError:
                If `matplotlib` is not installed

        .. plot::
            :scale: 75

            >>> import torch
            >>> from torchmetrics.retrieval import RetrievalRPrecision
            >>> # Example plotting a single value
            >>> metric = RetrievalRPrecision()
            >>> metric.update(torch.rand(10,), torch.randint(2, (10,)), indexes=torch.randint(2,(10,)))
            >>> fig_, ax_ = metric.plot()

        .. plot::
            :scale: 75

            >>> import torch
            >>> from torchmetrics.retrieval import RetrievalRPrecision
            >>> # Example plotting multiple values
            >>> metric = RetrievalRPrecision()
            >>> values = []
            >>> for _ in range(10):
            ...     values.append(metric(torch.rand(10,), torch.randint(2, (10,)), indexes=torch.randint(2,(10,))))
            >>> fig, ax = metric.plot(values)

        )Z_plot)r   r   r   r   r   r   ÚplotW   s    (r   )NN)Ú__name__Ú
__module__Ú__qualname__Ú__doc__r   ÚboolÚ__annotations__r   r   r   Úfloatr   r   r   r   r   r   r
   r   r   r   r   r   r   r      s   
2 ÿþr   N)Útypingr   r   r   Ztorchr   Z-torchmetrics.functional.retrieval.r_precisionr   Ztorchmetrics.retrieval.baser   Ztorchmetrics.utilities.importsr	   Ztorchmetrics.utilities.plotr
   r   Z__doctest_skip__r   r   r   r   r   Ú<module>   s   