import torch
A_idx = torch.LongTensor([0, 2]) # the index vector
B = torch.LongTensor([[1, 2, 3], [4, 5, 6]])
C = B.index_select(1, A_idx)
# 1 3
# 4 6
微信扫一扫
import torch
A_idx = torch.LongTensor([0, 2]) # the index vector
B = torch.LongTensor([[1, 2, 3], [4, 5, 6]])
C = B.index_select(1, A_idx)
# 1 3
# 4 6
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