mindspore.numpy.eye
- mindspore.numpy.eye(N, M=None, k=0, dtype=mstype.float32)[源代码]
Returns a 2-D tensor with ones on the diagonal and zeros elsewhere.
- 参数
N (int) – Number of rows in the output, must be larger than 0.
M (int, optional) – Number of columns in the output. If is
None
, default:N
, if defined, must be larger than 0. Default:None
.k (int, optional) – Index of the diagonal:
0
(the default) refers to the main diagonal, a positive value refers to an upper diagonal, and a negative value to a lower diagonal. Default:0
.dtype (Union[
mindspore.dtype
, str], optional) – Designated tensor dtype. Default:mstype.float32
.
- 返回
A tensor of shape (N, M). A tensor where all elements are equal to zero, except for the k-th diagonal, whose values are equal to one.
- 异常
TypeError – If input arguments have types not specified above.
- Supported Platforms:
Ascend
GPU
CPU
样例
>>> import mindspore.numpy as np >>> print(np.eye(2, 2)) [[1. 0.] [0. 1.]]