PyTorch学习笔记之Variable_and_function_cat
2024-10-21 13:02:15
application 1
from torch.autograd import Variable
import torch
b = Variable(torch.FloatTensor([64, 100, 43]))
print(b)
'''
Variable containing:
64
100
43
[torch.FloatTensor of size 3]
'''
application 2
from torch.autograd import Variable
import torch a1 = Variable(torch.randn(64, 100, 43))
# print(a)
a2 = Variable(torch.randn(64, 100, 44))
a3 = Variable(torch.randn(64, 100, 45))
a = [a1, a2, a3] # method 1
a = torch.cat((i.data for i in a), 2)
# method 2
a = torch.cat(a, 2)
print(a)
'''
Variable containing:
( 0 ,.,.) =
-8.0339e-01 -1.0054e+00 -3.8750e-01 ... -8.1924e-01 -5.0174e-01 1.2302e+00
-2.4266e+00 3.8993e-01 9.6254e-01 ... -2.6002e-01 3.8668e-01 -1.0960e+00
-9.8618e-01 1.5732e-01 -7.6385e-01 ... -9.6085e-01 4.7323e-01 1.0353e+00
... ⋱ ...
(63 ,.,.) =
-8.9123e-01 8.9774e-01 -1.1528e+00 ... 2.8538e-01 -1.3932e+00 -3.7968e-01
1.0256e+00 2.1746e+00 6.9736e-01 ... 1.2657e+00 -1.0258e+00 5.7128e-01
-1.0966e+00 7.1878e-01 3.5268e-01 ... 3.5731e-01 1.9369e+00 -7.3994e-01
[torch.FloatTensor of size 64x100x132]
'''
function_cat()
>>> x = torch.randn(2, 3)
>>> x 0.5983 -0.0341 2.4918
1.5981 -0.5265 -0.8735
[torch.FloatTensor of size 2x3] >>> torch.cat((x, x, x), 0) 0.5983 -0.0341 2.4918
1.5981 -0.5265 -0.8735
0.5983 -0.0341 2.4918
1.5981 -0.5265 -0.8735
0.5983 -0.0341 2.4918
1.5981 -0.5265 -0.8735
[torch.FloatTensor of size 6x3] >>> torch.cat((x, x, x), 1) 0.5983 -0.0341 2.4918 0.5983 -0.0341 2.4918 0.5983 -0.0341 2.4918
1.5981 -0.5265 -0.8735 1.5981 -0.5265 -0.8735 1.5981 -0.5265 -0.8735
[torch.FloatTensor of size 2x9]
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