gt() and lt() in PyTorch

#pytorch #gt #lt #function

*Memos:

My post explains ge() and le().
My post explains equal(), eq() and ne().

gt() can check the zero or more elements of the 1st 0D or more D tensor are greater than the zero or more elements of the 2nd 0D or more D tensor element-wise, getting the 0D or more D tensor of zero or more elements as shown below:

*Memos:

gt() can be used with torch or a tensor.
The 1st argument(input) with torch or using a tensor(Required-Type:tensor of int, float or bool).
The 2nd argument with torch or the 1st argument with a tensor is other(Required-Type:tensor or scalar of int, float or bool).
There is out argument with torch(Optional-Type:tensor): *Memos:
- out= must be used.
- My post explains out argument.
greater() is the alias of gt().

import torch

tensor1 = torch.tensor([5, 0, 3])
tensor2 = torch.tensor([[3, 5, 4],
                        [6, 3, 5]])
torch.gt(input=tensor1, other=tensor2)
tensor1.gt(other=tensor2)
# tensor([[True, False, False],
#         [False, False, False]])

torch.gt(input=tensor2, other=tensor1)
# tensor([[False, True, True],
#         [True, True, True]])

torch.gt(input=tensor1, other=3)
# tensor([True, False, False])

torch.gt(input=tensor2, other=3)
# tensor([[False, True, True],
#         [True, False, True]])

tensor1 = torch.tensor([5., 0., 3.])
tensor2 = torch.tensor([[3., 5., 4.],
                        [6., 3., 5.]])
torch.gt(input=tensor1, other=tensor2)
# tensor([[True, False, False],
#         [False, False, False]])

torch.gt(input=tensor1, other=3.)
# tensor([True, False, False])

tensor1 = torch.tensor([True, False, True])
tensor2 = torch.tensor([[True, False, True],
                        [False, True, False]])
torch.gt(input=tensor1, other=tensor2)
# tensor([[False, False, False],
#         [True, False, True]])

torch.gt(input=tensor1, other=True)
# tensor([False, False, False])

lt() can check the zero or more elements of the 1st 0D or more D tensor are less than the zero or more elements of the 2nd 0D or more D tensor element-wise, getting the 0D or more D tensor of zero or more elements as shown below:

*Memos:

lt() can be used with torch or a tensor.
The 1st argument(input) with torch or using a tensor(Required-Type:tensor of int, float or bool).
The 2nd argument with torch or the 1st argument with a tensor is other(Required-Type:tensor or scalar of int, float or bool).
There is out argument with torch(Optional-Type:tensor): *Memos:
- out= must be used.
- My post explains out argument.
less() is the alias of lt().

import torch

tensor1 = torch.tensor([5, 0, 3])
tensor2 = torch.tensor([[3, 5, 4],
                        [6, 3, 5]])
torch.lt(input=tensor1, other=tensor2)
tensor1.lt(other=tensor2)
# tensor([[False, True, True],
#         [True, True, True]])

torch.lt(input=tensor2, other=tensor1)
# tensor([[True, False, False],
#         [False, False, False]])

torch.lt(input=tensor1, other=3)
# tensor([False, True, False])

torch.lt(input=tensor2, other=3)
# tensor([[False, False, False],
#         [False, False, False]])

tensor1 = torch.tensor([5., 0., 3.])
tensor2 = torch.tensor([[3., 5., 4.],
                        [6., 3., 5.]])
torch.lt(input=tensor1, other=tensor2)
# tensor([[False, True, True],
#         [True, True, True]])

torch.lt(input=tensor1, other=3.)
# tensor([False, True, False])

tensor1 = torch.tensor([True, False, True])
tensor2 = torch.tensor([[True, False, True],
                        [False, True, False]])
torch.lt(input=tensor1, other=tensor2)
# tensor([[False, False, False],
#         [False, True, False]])

torch.lt(input=tensor1, other=True)
# tensor([False,  True, False])

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gt() and lt() in PyTorch

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