[chainer] F.hstackメモ

行列同士を列方向で連結する
chainer.functions.hstackの使い方メモ

import chainer
import chainer.functions as F
import numpy as np


hoge = np.array([i for i in range(9)]).reshape(3,3)

"""
array([[0, 1, 2],
       [3, 4, 5],
       [6, 7, 8]])
(3, 3)
"""
hogehoge = np.array([i*i for i in range(9)]).reshape(3,3)

"""
array([[ 0,  1,  4],
       [ 9, 16, 25],
       [36, 49, 64]])
(3, 3)
"""
hogehogehoge = F.hstack((hoge, hogehoge))

"""
variable([[ 0  1  2  0  1  4]
          [ 3  4  5  9 16 25]
          [ 6  7  8 36 49 64]])
(3, 6)
"""