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torch array index

Using numpy array to index torch tensor #34452 - GitHub
https://github.com › pytorch › issues
Bug Using a numpy array i as index for a torch tensor t (i.e. t[i]) is interpreted differently than indexing a numpy array with the same ...
python - How Pytorch Tensor get the index of specific value ...
stackoverflow.com › questions › 47863001
Dec 18, 2017 · For floating point tensors, I use this to get the index of the element in the tensor.. print((torch.abs((torch.max(your_tensor).item()-your_tensor))<0.0001).nonzero()) Here I want to get the index of max_value in the float tensor, you can also put your value like this to get the index of any elements in tensor.
python - Array indexing in pytorch - Stack Overflow
https://stackoverflow.com/questions/61689643
08.05.2020 · Your dof tensor indexes the columns, but you also need to index the rows. x_index = torch.arange (3).unsqueeze (1).expand (3, 24) x_index is a 3 x 24 tensor where each row is the row index. Now you can use this together with the dof tensor to index elements in the Fint_MAT matrix. Fint_MAT [x_index, dof] = Fint_e.
Indexing tensors • torch
mlverse.github.io › torch › articles
indexing.Rmd. library ( torch) In this article we describe the indexing operator for torch tensors and how it compares to the R indexing operator for arrays. Torch’s indexing semantics are closer to numpy’s semantics than R’s. You will find a lot of similarities between this article and the numpy indexing article available here.
Index a torch tensor with an array - Stack Overflow
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i.e. I want the numpy array to index each sub-element of my tensor. Preferably without using a loop. Thanks in advance. Share. Share a link to this question.
Pytorch Tensor Indexing - Deep Learning University
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Syntax: tensor_name [index] = new_element. Example. In this example, you will change the first element of the tensor from 2 to 8. tensor = torch.tensor ( [2, 4, 1, 7, 0, 9]) # assign value 8 to the 0th index in the tensor tensor [0] = 8 print (tensor) # Outputs- tensor ( [8, 4, 1, 7, 0, 9]) You can use indexing to change elements in a tensor of ...
torch.where — PyTorch 1.10.1 documentation
https://pytorch.org/docs/stable/generated/torch.where.html
torch.where. Return a tensor of elements selected from either x or y, depending on condition. The operation is defined as: The tensors condition, x, y must be broadcastable. Currently valid scalar and tensor combination are 1. Scalar of floating dtype and torch.double 2. Scalar of integral dtype and torch.long 3.
torch.index_select — PyTorch 1.10.1 documentation
https://pytorch.org › generated › to...
Returns a new tensor which indexes the input tensor along dimension dim using the entries in index which is a LongTensor . The returned tensor has the same ...
How Pytorch Tensor get the index of specific value - py4u
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for finding index of an element in 1d tensor/array Example mat=torch.tensor([1,8,5,3]). to find index of 5 five=5 numb_of_col=4 for o in range(numb_of_col): ...
Pytorch Tensor Indexing - Deep Learning University
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In the example below, you will get the 3rd element from the 1st array of the tensor. tensor = torch.tensor([[1, 2, 1], [3, 8, 4]]) print(tensor[0] ...
Every Index based Operation you'll ever need in Pytorch
https://medium.com › every-index-...
In torch.tensor, we have 10 Index Operations based functions. ... no error and returns the above matrix in which only 1st row is not one.
Indexing tensors • torch
https://mlverse.github.io › articles
Unlike R though, it accepts negative indices for indexing from the end of the array. (In R, negative indices are used to remove elements.) x <- torch_tensor( ...
python - Index a torch tensor with an array - Stack Overflow
stackoverflow.com › questions › 61311688
Index a torch tensor with an array. Ask Question Asked 1 year, 8 months ago. Active 1 year, 8 months ago. Viewed 3k times 3 1. I have the following torch tensor: ...
Pytorch Tensor Indexing - Deep Learning University
https://deeplearninguniversity.com/pytorch/pytorch-tensor-indexing
Indexing a Pytorch tensor is similar to that of a Python list. The pytorch tensor indexing is 0 based, i.e, the first element of the array has index 0. Accessing Tensor Elements. You can access an element from the Pytorch tensor by specifying the index of the element. Syntax: tensor_name[index] Example
Indexing tensors • torch - GitHub Pages
https://mlverse.github.io/torch/articles/indexing.html
indexing.Rmd. library ( torch) In this article we describe the indexing operator for torch tensors and how it compares to the R indexing operator for arrays. Torch’s indexing semantics are closer to numpy’s semantics than R’s. You will find a lot of similarities between this article and the numpy indexing article available here.
torch.from_numpy — PyTorch 1.10.1 documentation
https://pytorch.org/docs/stable/generated/torch.from_numpy.html
torch.from_numpy¶ torch. from_numpy (ndarray) → Tensor ¶ Creates a Tensor from a numpy.ndarray.. The returned tensor and ndarray share the same memory. Modifications to the tensor will be reflected in the ndarray and vice versa. The returned tensor is not resizable.
Indexing tensors
https://mran.microsoft.com › torch
In this article we describe the indexing operator for torch tensors and how it compares to the R indexing operator for arrays. Torch's indexing semantics ...
torch.index_select — PyTorch 1.10.1 documentation
pytorch.org › docs › stable
torch.index_select(input, dim, index, *, out=None) → Tensor. Returns a new tensor which indexes the input tensor along dimension dim using the entries in index which is a LongTensor. The returned tensor has the same number of dimensions as the original tensor ( input ). The dim th dimension has the same size as the length of index; other ...
torch.index_select — PyTorch 1.10.1 documentation
https://pytorch.org/docs/stable/generated/torch.index_select.html
torch.index_select¶ torch. index_select (input, dim, index, *, out = None) → Tensor ¶ Returns a new tensor which indexes the input tensor along dimension dim using the entries in index which is a LongTensor.. The returned tensor has the same number of dimensions as the original tensor (input).The dim th dimension has the same size as the length of index; other dimensions have …