Python – PyTorch numel() 方法
PyTorch torch.numel()
方法返回输入张量中的元素总数。
Syntax: torch.numel(input)
Arguments
- input: This is input tensor.
Return: It returns the length of the input tensor.
让我们通过几个例子来看看这个概念:
示例 1:
示例 1:
# Importing the PyTorch library
import torch
# A constant tensor of size n
a = torch.randn(4, 6)
print(a)
# Applying the numel function and
# storing the result in 'out'
out = torch.numel(a)
print(out)
输出:
-0.8263 0.9807 -1.4688 0.2117 -0.8356 -0.0228
-0.8815 1.3652 -0.1892 -1.1241 0.2755 1.3006
0.0559 0.2389 0.7944 2.6587 -2.0908 1.2973
-0.2056 0.4110 0.2163 0.3091 0.5559 -0.2468
[torch.FloatTensor of size 4x6]
24
示例 2:
# Importing the PyTorch library
import torch
# A constant tensor of size n
a = torch.FloatTensor([1, 4, 6, 8])
print(a)
# Applying the numel function and
# storing the result in 'out'
out = torch.numel(a)
print(out)
输出:
1
4
6
8
[torch.FloatTensor of size 4]
4
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