accuracy

mvpy.math.accuracy(x: ndarray | Tensor, y: ndarray | Tensor) → ndarray | Tensor

Compute accuracy between x and y. Note that accuracy is always computed over the final dimension.

Parameters:

xUnion[np.ndarray, torch.Tensor]

Vector/Matrix/Tensor

yUnion[np.ndarray, torch.Tensor]

Vector/Matrix/Tensor

Returns:

Union[np.ndarray, torch.Tensor]

Accuracy

Notes

Accuracy is defined as:

\[\text{accuracy}(x, y) = \frac{1}{N}\sum_i^N{1(x_i = y_i)}\]

Examples

>>> import torch
>>> from mvpy.math import accuracy
>>> x = torch.tensor([1, 0])
>>> y = torch.tensor([-1, 0])
>>> accuracy(x, y)
tensor([0.5])