Python数据分析工具

[root@kvm work]# cat numpy_test.py 
#!/usr/bin/env python
#coding:utf-8

from __future__ import print_function

# 导入模块并添加别名
import numpy as np

# 创建数组
a = np.array([2,0,1,7])

print(a)
print(a[:3])
print(a.min())
a.sort()
print(a)

# 创建二维数据
b = np.array([[1,2,3],[4,5,6]])
print(b)
print(b*b)

[root@kvm work]# python numpy_test.py 
[2 0 1 7]
[2 0 1]
0
[0 1 2 7]
[[1 2 3]
 [4 5 6]]
[[ 1  4  9]
 [16 25 36]]