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pytorch 使用 sort 函数排序

忆北文学摄影爱好员 2022-02-16 阅读 152
pytorch
import torch
a = torch.randn(3,4)
print(a)
print()

i, idx = a.sort(dim=1, descending=True)
print(i)
print(idx)
print()

j, rank = idx.sort(dim=1)
print(rank)

结果:

tensor([[ 2.3326,  0.0275, -0.0799,  0.4156],
        [-2.2066,  1.7997, -2.2767,  0.4704],
        [-0.6980,  0.2285,  1.0018, -0.8874]])

tensor([[ 2.3326,  0.4156,  0.0275, -0.0799],
        [ 1.7997,  0.4704, -2.2066, -2.2767],
        [ 1.0018,  0.2285, -0.6980, -0.8874]])
tensor([[0, 3, 1, 2],
        [1, 3, 0, 2],
        [2, 1, 0, 3]])

tensor([[0, 2, 3, 1],
        [2, 0, 3, 1],
        [2, 1, 0, 3]])
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