Use torch.unsqueeze(input, dim, out=None):

>>> import torch
>>> a = torch.Tensor([1, 2, 3, 4, 5])
>>> a

 1
 2
 3
 4
 5
[torch.FloatTensor of size 5]

>>> a = a.unsqueeze(0)
>>> a

 1  2  3  4  5
[torch.FloatTensor of size 1x5]
Answer from Haha TTpro on Stack Overflow
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Codecademy
codecademy.com โ€บ docs โ€บ pytorch โ€บ tensors โ€บ .reshape()
PyTorch | tensors | .reshape() | Codecademy
September 23, 2024 - The torch.reshape() method reshapes a specified input tensor to a given shape while keeping the same data and number of elements.
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GeeksforGeeks
geeksforgeeks.org โ€บ python โ€บ reshaping-a-tensor-in-pytorch
Reshaping a Tensor in Pytorch - GeeksforGeeks
September 1, 2021 - Reshaping allows us to change the shape with the same data and number of elements as self but with the specified shape, which means it returns the same data as the specified array, but with different specified dimension sizes.
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CodeSignal
codesignal.com โ€บ learn โ€บ courses โ€บ introduction-to-pytorch-tensors โ€บ lessons โ€บ reshaping-and-flattening-tensors-in-pytorch
Reshaping and Flattening Tensors in PyTorch
Before we start manipulating tensors, let's understand what it actually means to reshape a tensor. You can think of reshaping a tensor as changing its dimensions without altering the underlying data. The new shape must have the same number of elements as the old shape.
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DeepLizard
deeplizard.com โ€บ learn โ€บ video โ€บ fCVuiW9AFzY
Flatten, Reshape, and Squeeze Explained - Tensors for Deep Learning with PyTorch - deeplizard
Tensors for neural network programming and deep learning with PyTorch. A deeper look into the tensor reshaping options like flattening, squeezing, and unsqueezing.
Find elsewhere
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CodingNomads
codingnomads.com โ€บ torch-reshape-methods
Torch Reshape Methods
Reshape tensors using the reshape method, which is particularly useful when you need to transform your data into a specific format, such as converting a flat tensor into an "image-like" tensor with height, width, and channel dimensions.
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CodeSignal
codesignal.com โ€บ learn โ€บ courses โ€บ introduction-to-tensorflow-basics โ€บ lessons โ€บ manipulating-tensor-shapes-with-tensorflow
Manipulating Tensor Shapes with TensorFlow
Tensor reshaping does not change the underlying data of the tensor; instead, it modifies how that data is arranged. Consider a tensor like a chunk of clay, and reshaping it is akin to modeling it into different forms โ€” from a sphere to a cube, from a cuboid to a cylinder, and so on.
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Wikipedia
en.wikipedia.org โ€บ wiki โ€บ Tensor_reshaping
Tensor reshaping - Wikipedia
March 24, 2024 - In multilinear algebra, a reshaping of tensors is any bijection between the set of indices of an order- ... {\displaystyle L<M} . The use of indices presupposes tensors in coordinate representation with respect to a basis. The coordinate representation of a tensor can be regarded as a ...
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Medium
medium.com โ€บ @imabhi1216 โ€บ pytorch-zero-to-hero-reshape-flatten-and-concatenate-tensors-2-0adf6d3917c3
PyTorch Zero to Hero (Reshape, Flatten, and Concatenate Tensors)~ 2 | by Abhishek Selokar | Medium
June 7, 2024 - It means changing only the shape of the tensor and not the underlying data present in it. print(t.reshape([1,12])) ## Output tensor([[1, 2, 1, 4, 3, 7, 1, 8, 5, 0, 1, 1]])
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DZone
dzone.com โ€บ articles โ€บ reshaping-pytorch-tensors
Reshaping PyTorch Tensors - DZone
April 18, 2022 - The documentation says the following about reshape method: Returns a tensor with the same data and number of elements as input, but with the specified shape. When possible, the returned tensor will be a view of input.
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Microsoft Learn
learn.microsoft.com โ€บ en-us โ€บ dotnet โ€บ api โ€บ system.numerics.tensors.tensor.reshape
Tensor.Reshape Method (System.Numerics.Tensors) | Microsoft Learn
Reshapes the tensor tensor to the specified lengths. If one of the lengths is -1, it will be calculated automatically. Does not change the length of the underlying memory nor does it allocate new memory.
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Medium
mr-amit.medium.com โ€บ pytorch-view-vs-reshape-a-practical-guide-74bf31eec210
PyTorch view() vs reshape(): A Practical Guide | by It's Amit | Medium
March 6, 2025 - When you run this, youโ€™ll see that the reshaped tensor remains unchanged even after modifying the original tensor. Thatโ€™s because reshape() creates a copy when needed, isolating it from the source.
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Codefinity
codefinity.com โ€บ courses โ€บ v2 โ€บ 1dd2b0f6-6ec0-40e6-a570-ed0ac2209666 โ€บ 8a329f24-2e0c-4e15-bc32-802e817f6856 โ€บ 88dae7a6-f8ba-40ba-85a9-a4eeb717d96c
Learn Challenge: Reshaping Tensors | PyTorch Introduction
Use the appropriate method to add a new dimension at the third position (index 2) of the tensor. Use squeeze() to remove the added dimension. ... Thanks for your feedback! Section 1. Chapter 10 ... Reshape the given tensor (with an initial shape of 3x4) into a 2x6 tensor.
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APXML
apxml.com โ€บ courses โ€บ getting-started-with-pytorch โ€บ chapter-2-advanced-tensor-manipulations โ€บ reshaping-rearranging-tensors
Reshape PyTorch Tensors | View, Permute
It will attempt to return a view if the tensor is contiguous for the target shape. If it's not possible to return a view (e.g., because the original tensor isn't contiguous in a way compatible with the new shape), reshape() will copy the data into a new, contiguous tensor with the desired shape.
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ProjectPro
projectpro.io โ€บ recipes โ€บ reshape-tensor
How to reshape a tensor -
August 3, 2022 - This is possible by using "reshape" function available in the tensorflow, the function will return a new tensor which will have same values as tensor in the same order, except the shape will be different.
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Medium
neuralthreads.medium.com โ€บ understanding-the-reshaping-of-a-tensor-4dd1795e12bf
Understanding the reshaping of a Tensor | by neuralthreads | Medium
December 1, 2021 - We can change the shape of the tensor to (8, 3) using this line of code. ... You can notice that the ascending order is still the same. Note โ€” The shape of the array is still (6, 4) because we havenโ€™t assigned reshaped tensor to a variable.