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Python numpy.equal()用法及代码示例


numpy.equal(arr1,arr2,out = None,where = True,cast ='same_kind',order ='K',dtype = None,ufunc'not_equal'):此逻辑函数检查arr1 == arr2 elemen-twise。

参数:

  • arr1 :[数组]输入数组
    arr2 :[数组]输入数组

  • out :[ndarray,可选]输出数组,其尺寸与输入数组相同,并放置在结果中。
  • **kwargs:允许您将关键字的可变参数长度传递给函数。当我们要处理函数中的命名参数时使用它。
  • where :[数组,可选] True值表示在该位置计算通用函数(ufunc),False值表示将值保留在输出中。

返回:

Returns arr1 == arr2 element-wise


代码1:

# Python Program illustrating 
# numpy.equal() method 
import numpy as geek  
   
a  = geek.equal([1., 2.], [1., 3.]) 
print("Check to be Equal:\n", a, "\n") 
   
b = geek.equal([1, 2], [[1, 3],[1, 4]]) 
print("Check to be Equal:\n", b, "\n")

输出:

Check to be Equal:
 [ True False] 

Check to be Equal:
 [[ True False]
 [ True False]] 


代码2:使用.equal()函数比较数据类型

# Python Program illustrating 
# numpy.equal() method 
import numpy as geek  
   
# Here we will compare Complex values with int 
a = geek.array([0 + 1j, 2]) 
b = geek.array([1,2]) 
   
d  = geek.equal(a, b) 
print("Comparing complex with int using .equal():", d)

输出:

Comparing complex with int using .equal(): [False  True]


代码3:

# Python Program illustrating 
# numpy.not_equal() method 
import numpy as geek  
   
# Here we will compare Float with int values 
a = geek.array([1.1, 1]) 
b = geek.array([1, 2]) 
    
d  = geek.not_equal(a, b) 
print("\nComparing float with int using .not_equal():", d)

输出:

Comparing float with int using .not_equal(): [ True  True]

参考文献:
https://docs.scipy.org/doc/numpy-1.13.0/reference/generated/numpy.equal.html



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注:本文由纯净天空筛选整理自Mohit Gupta_OMG 大神的英文原创作品 numpy.equal() in Python。非经特殊声明,原始代码版权归原作者所有,本译文未经允许或授权,请勿转载或复制。