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Python numpy.greater()用法及代码示例


numpy.greater(x1,x2 [,out]):检查x1是否大于x2。
参数:

x1, x2 : [array_like]Input arrays. If x1.shape != x2.shape, they must be 
             broadcastable to a common shape 
out    : [ndarray, boolean]Array of bools, or a single bool if x1 and x2 are scalars.

返回:

Boolean array indicating results, whether x1 is greater than x2 or not.

代码1:


# Python Program illustrating 
# numpy.greater() method 
   
import numpy as geek  
  
a  = geek.greater([8., 2.], [5., 3.]) 
print("Not equal : \n", a, "\n") 
  
b = geek.greater([2, 2], [[1, 3],[1, 4]]) 
print("Not equal : \n", b, "\n") 
  
a = geek.array([4,2]) 
b = geek.array([6,2]) 
  
print("Is a greater than b : ", a > b)

输出:

Not equal : 
 [ True False] 

Not equal : 
 [[ True False]
 [ True False]] 

Is a greater than b :  [False False]

代码2:

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

输出:

Comparing float with int :  [False  True]

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

代码3:

# Python Program illustrating 
# numpy.greater() method 
    
import numpy as geek  
  
# Here we will compare Complex values with int  
a = geek.array([1j,2]) 
b = geek.array([1,2]) 
   
# indicating 1j is greater than 1 
print("Comparing complex with int : ", a < b) 
  
# indicating 1j is greater than 1 
d  = geek.greater(a, b) 
print("\nComparing complex with int using .greater() : ", d)

输出:

Comparing complex with int :  [ True False]

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

参考文献:
https://docs.scipy.org/doc/numpy-dev/reference/generated/numpy.greater.html#numpy.greater



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