我有一个数组:
[['a','1'.'2','3','4'],['b','5','6','7','8'],['c','9','10','11','12'],['d','13','14','15','16']]
我想将其子集化并转置。为了转置它我尝试了zip函数,但它输出数组,当我写入csv文件时没有格式为制表符分隔。
所需的输出:
a b
1 5
2 6
3 7
4 8
c d
9 13
10 14
11 15
12 16
由于我无法在此处制作标签,因此我会在输出中留下三个空格。
答案 0 :(得分:1)
这样可以使输出看起来像您要查找的内容:
import numpy as np
a = np.array([['a','1','2','3','4'],
['b','5','6','7','8'],
['c','9','10','11','12'],
['d','13','14','15','16']])
new_a = np.hstack((a[:2,], a[2:])).T
结果:
>>> new_a
array([['a', 'b'],
['1', '5'],
['2', '6'],
['3', '7'],
['4', '8'],
['c', 'd'],
['9', '13'],
['10', '14'],
['11', '15'],
['12', '16']],
dtype='|S2')