zip 在数据分析中的用法

#在python console 里面进行测试
a=[1,2,3,4,5,6]
b=[0.13,0.78,0.6,0.92,0.66,0.33]
zip(a,b)
Out[4]: <zip at 0x10f938308>
for i in zip(a,b):
    print(i)
    
(1, 0.13)
(2, 0.78)
(3, 0.6)
(4, 0.92)
(5, 0.66)
(6, 0.33)

for i in range(6):
    a_i=a[i]
    b_i=b[i]
    print(a_i,b_i)
    
    
1 0.13
2 0.78
3 0.6
4 0.92
5 0.66
6 0.33

　　

[i for i in zip(a,b)]
Out[9]: [(1, 0.13), (2, 0.78), (3, 0.6), (4, 0.92), (5, 0.66), (6, 0.33)]

 

#转数组
import numpy as np
a_array=np.array(a)
b_array=np.array(b)
result=a_array*b_array
result
Out[14]: array([0.13, 1.56, 1.8 , 3.68, 3.3 , 1.98])
result.max()
Out[15]: 3.68
result.min()
Out[16]: 0.13
result.sum()
Out[17]: 12.450000000000001
result.argmax()
Out[18]: 3