eq and ne in PyTorch

#python #pytorch #eq #ne

*Memos:

My post explains gt() and lt().
My post explains ge() and le().
My post explains isclose() and equal().

eq() can check if the zero or more elements of the 1st 0D or more D tensor are equal to 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:

eq() can be used with torch or a tensor.
The 1st argument(input) with torch or using a tensor(Required-Type:tensor of int, float, complex or bool).
The 2nd argument with torch or the 1st argument with a tensor is other(Required-Type:tensor or scalar of int, float, complex or bool).
There is out argument with torch(Optional-Default:None-Type:tensor): *Memos:
- out= must be used.
- My post explains out argument.
The result is the higher D tensor which has more elements.

import torch

tensor1 = torch.tensor([5, 0, 3])
tensor2 = torch.tensor([7, 0, 3])

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

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

torch.eq(input=tensor1, other=3)
# tensor(False)

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

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

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

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

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

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

tensor1 = torch.tensor([5.+0.j, 0.+0.j, 3.+0.j])
tensor2 = torch.tensor([[5.+0.j, 5.+0.j, 5.+0.j],
                        [0.+0.j, 0.+0.j, 0.+0.j],
                        [3.+0.j, 3.+0.j, 3.+.0j]])
torch.eq(input=tensor1, other=tensor2)
# tensor([[True, False, False],
#         [False, True, False],
#         [False, False, True]])

torch.eq(input=tensor1, other=3.+0.j)
# tensor([False, False, True])

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

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

ne() can check if the zero or more elements of the 1st 0D or more D tensor are not equal to 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:

ne() can be used with torch or a tensor.
The 1st argument(input) with torch or using a tensor(Required-Type:tensor of int, float, complex or bool).
The 2nd argument with torch or the 1st argument with a tensor is other(Required-Type:tensor or scalar of int, float, complex or bool).
There is out argument with torch(Optional-Default:None-Type:tensor): *Memos:
- out= must be used.
- My post explains out argument.
not_equal() is the alias of ne().

import torch

tensor1 = torch.tensor([5, 0, 3])
tensor2 = torch.tensor([7, 0, 3])

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

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

torch.ne(input=tensor1, other=3)
# tensor(True)

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

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

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

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

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

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

tensor1 = torch.tensor([5.+0.j, 0.+0.j, 3.+0.j])
tensor2 = torch.tensor([[5.+0.j, 5.+0.j, 5.+0.j],
                        [0.+0.j, 0.+0.j, 0.+0.j],
                        [3.+0.j, 3.+0.j, 3.+.0j]])
torch.ne(input=tensor1, other=tensor2)
# tensor([[False, True, True],
#         [True, False, True],
#         [True, True, False]])

torch.ne(input=tensor1, other=3.+0.j)
# tensor([True, True, False])

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

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

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eq and ne in PyTorch

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