transpose
paddle. transpose ( x, perm, name=None ) [源代码]
该OP根据perm对输入的多维Tensor进行数据重排。返回多维Tensor的第i维对应输入Tensor的perm[i]维。
参数:
x (Tensor) - 输入:x:[N_1, N_2, …, N_k, D]多维Tensor,可选的数据类型为float16, float32, float64, int32, int64。
perm (list|tuple) - perm长度必须和X的维度相同,并依照perm中数据进行重排。
name (str) - 该层名称(可选)。
返回: 多维Tensor
返回类型:Tensor
示例:
x = [[[ 1 2 3 4] [ 5 6 7 8] [ 9 10 11 12]]
[[13 14 15 16] [17 18 19 20] [21 22 23 24]]]
shape(x) = [2,3,4]
# 例0
perm0 = [1,0,2]
y_perm0 = [[[ 1 2 3 4] [13 14 15 16]]
[[ 5 6 7 8] [17 18 19 20]]
[[ 9 10 11 12] [21 22 23 24]]]
shape(y_perm0) = [3,2,4]
# 例1
perm1 = [2,1,0]
y_perm1 = [[[ 1 13] [ 5 17] [ 9 21]]
[[ 2 14] [ 6 18] [10 22]]
[[ 3 15] [ 7 19] [11 23]]
[[ 4 16] [ 8 20] [12 24]]]
shape(y_perm1) = [4,3,2]
代码示例:
import paddle
x = paddle.randn([2, 3, 4])
x_transposed = paddle.transpose(x, perm=[1, 0, 2])
print(x_transposed.shape)
# [3L, 2L, 4L]