mindspore.Tensor.argmax
- mindspore.Tensor.argmax(axis=None, keepdims=False)
返回tensor在指定轴上的最大值索引。
- 参数:
axis (Union[int, None],可选) - 指定计算轴。如果为
None
,计算tensor中的所有元素。默认None
。keepdims (bool,可选) - 输出tensor是否保留维度。默认
False
。
- 返回:
Tensor
- 支持平台:
Ascend
GPU
CPU
样例:
>>> import mindspore >>> x = mindspore.tensor([[9, 3, 4, 5], ... [5, 2, 7, 4], ... [8, 1, 3, 6]]) >>> # case 1: By default, compute the maximum of all elements. >>> x.argmax() Tensor(shape=[], dtype=Int64, value= 0) >>> >>> # case 2: Compute the maximum along axis 1. >>> x.argmax(axis=1) Tensor(shape=[3], dtype=Int64, value= [0, 2, 0]) >>> >>> # case 3: If keepdims=True, the output shape will be same of that of the input. >>> x.argmax(axis=1, keepdims=True) Tensor(shape=[3, 1], dtype=Int64, value= [[0], [2], [0]])
- mindspore.Tensor.argmax(dim=None, keepdim=False)
返回tensor在指定轴上的最大值索引。
- 参数:
dim (Union[int, None],可选) - 指定计算维度。如果为
None
,计算tensor中的所有元素。默认None
。keepdim (bool,可选) - 输出tensor是否保留维度。默认
False
。
- 返回:
Tensor
- 支持平台:
Ascend
样例:
>>> import mindspore >>> x = mindspore.tensor([[9, 3, 4, 5], ... [5, 2, 7, 4], ... [8, 1, 3, 6]]) >>> # case 1: By default, compute the maximum of all elements. >>> x.argmax() Tensor(shape=[], dtype=Int64, value= 0) >>> >>> # case 2: Compute the maximum along dim 1. >>> x.argmax(dim=1) Tensor(shape=[3], dtype=Int64, value= [0, 2, 0]) >>> >>> # case 3: If keepdim=True, the output shape will be same of that of the input. >>> x.argmax(dim=1, keepdim=True) Tensor(shape=[3, 1], dtype=Int64, value= [[0], [2], [0]])