numpy字符串操作 |相等（）函数

numpy.core.defchararray.equal(arr1, arr2)是另一个在 numpy 中进行字符串操作的函数。它一个一个地检查两个相同形状的数组的元素，如果它们相等则返回True 。否则，它返回False 。

Parameters:
arr1 : array_like of str or unicode.
arr2 : array_like of str or unicode.

Returns : [ndarray] Output array of bools, or a single bool if arr1 and arr2 are scalars.

代码#1：

# Python program explaining
# numpy.char.equal() method 
  
# importing numpy 
import numpy as geek
  
# input arrays  
in_arr1 = geek.array('numpy')
print ("1st Input array : ", in_arr1)
  
in_arr2 = geek.array('numpy')
print ("2nd Input array : ", in_arr2)  
  
# checking if they are equal
out_arr = geek.char.equal(in_arr1, in_arr2)
print ("Output array: ", out_arr) 

输出：

1st Input array :  numpy
2nd Input array :  numpy
Output array:  True

代码#2：

# Python program explaining
# numpy.char.equal() method 
  
# importing numpy 
import numpy as geek
  
# input arrays  
in_arr1 = geek.array(['Geeks', 'for', 'Geeks'])
print ("1st Input array : ", in_arr1) 
  
in_arr2 = geek.array(['Geek', 'for', 'Geek'])
print ("2nd Input array : ", in_arr2) 
  
# checking if they are equal
out_arr = geek.char.equal(in_arr1, in_arr2)
print ("Output array: ", out_arr) 

输出：

1st Input array :  ['Geeks' 'for' 'Geeks']
2nd Input array :  ['Geek' 'for' 'Geek']
Output array:  [False  True False]

代码#3：

# Python program explaining
# numpy.char.equal() method 
  
# importing numpy 
import numpy as geek
  
# input arrays  
in_arr1 = geek.array(['10', '11', '12'])
print ("1st Input array : ", in_arr1) 
  
in_arr2 = geek.array(['10', '11', '121'])
print ("2nd Input array : ", in_arr2) 
  
  
# checking if they are equal
out_arr = geek.char.equal(in_arr1, in_arr2)
print ("Output array: ", out_arr) 

输出：

1st Input array :  ['10' '11' '12']
2nd Input array :  ['10' '11' '121']
Output array:  [ True  True False]