python-pytorchHow do I use the argmax function in Python PyTorch?
The argmax
function in PyTorch is used to retrieve the index of the maximum value of a given tensor along a particular dimension.
For example, if x
is a tensor with the values [1, 2, 3, 4]
, then torch.argmax(x)
will return 3
, because 4
is the maximum value in the tensor.
Here is an example code block that uses argmax
:
import torch
x = torch.tensor([1, 2, 3, 4])
torch.argmax(x)
The output of this code is 3
.
Code explanation
import torch
: This is used to import the PyTorch library.x = torch.tensor([1, 2, 3, 4])
: This creates a tensorx
with the values[1, 2, 3, 4]
.torch.argmax(x)
: This applies theargmax
function to the tensorx
and returns the index of the maximum value in the tensor.
For more information on the argmax
function in PyTorch, please see the following links:
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