【9.1】tensorflow--tf.pack

一、tf.pack

tf.pack(values, axis=0, name=”pack”)

Packs a list of rank-R tensors into one rank-(R+1) tensor

将一个R维张量列表沿着axis轴组合成一个R+1维的张量。

# 'x' is [1, 4]
# 'y' is [2, 5]
# 'z' is [3, 6]
pack([x, y, z]) => [[1, 4], [2, 5], [3, 6]]  # Pack along first dim.
pack([x, y, z], axis=1) => [[1, 2, 3], [4, 5, 6]]
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