# -*- coding: utf-8 -*-

"""

Created on Mon Mar 12 16:07:17 2018

@author: Administrator

@description： any和all函数

"""

import numpy as np

from numpy.matlib import randn

print('Boolean values are coerced to 1 (True) and 0 (False) in the above methods. Thus, sum is often used as a means of counting True values in a boolean array:')

arr = randn(100)

print("输出生成的随机数数组中数值大于0的个数：")

print((arr > 0).sum())

bools = np.array([False, False, True, False])

print(bools)

print("只要有一个为true就输出true:")

print(bools.any()) # true

print("全部才输出true：")

print(bools.all()) #false

bools2 = np.array([ True, True, True, True])

print(bools2.all()) #true

#两个数组之间

# any():a数组与b数组有一个元素对应相等就输出true

#all():a数组与b数组每个元素都对应相等才输出true

a=np.array([1,2,3])

b=np.array([2,2,3])

boolean=(a==b).all()

boolean2=(a==b).any()

print(boolean)#true

print(boolean2)#true