📜  Python中的 numpy.isrealobj()

📅  最后修改于: 2022-05-13 01:55:43.914000             🧑  作者: Mango

Python中的 numpy.isrealobj()

numpy.isrealobj(array) :此逻辑函数有助于检查数组是否没有复数类型或数组是否有复数。即使虚部等于 0,它也不被认为是一个 Real Object。

参数 :

array    : [array_like]Input array or object whose elements, we need to test.

返回 :

True, if the input array hasn't any complex element; otherwise False 


代码 1:

# Python program explaining
# isrealobj() function
import numpy as np
  
in_array = [1, 3, 5, 4]
print ("Input array : ", in_array)
  
output_value = np.isrealobj(in_array)
print ("\nIs real : ", output_value)

输出 :

Input array :  [1, 3, 5, 4]

Is real :  True


代码 2:

# Python Program illustrating
# numpy.isrealobj() method   
import numpy as geek 
     
# Returns True/False value for each element 
a = geek.arange(20).reshape(5, 4)
print("Is real : ", geek.isrealobj(a))
     
# Returns True/False value as ans 
# because we have mentioned dtpe in the beginning
b = geek.arange(20).reshape(5, 4).dtype = complex
                   
print("\n",b)
print("\nIs real : ", geek.isrealobj(b))
    
    
b = [[1j], 
     [3]]
print("\nIs real : ", geek.isrealobj(b))

输出 :

Is real :  True

 class 'complex'

Is real :  True

Is real :  False

参考 :
https://docs.scipy.org/doc/numpy-1.13.0/reference/generated/numpy.isrealobj.html#numpy.isrealobj
.