Numpy ndarray.getfield()函数| Python

numpy.ndarray.getfield()函数将给定数组的字段作为某种类型返回。

Syntax : numpy.ndarray.getfield(dtype, offset=0)

Parameters :
dtype : [str or dtype] The dtype size of the view can not be larger than that of the array itself.
offset : [int] Number of bytes to skip before beginning the element view.

Return : Returns a field of the given array as a certain type.

代码#1：

# Python program explaining
# numpy.ndarray.getfield() function
  
# importing numpy as geek 
import numpy as geek 
            
x = geek.diag([1.+1.j]*2)
            
gfg = x.getfield(geek.float64)
      
print(gfg)

输出 ：

[[ 1.  0.]
 [ 0.  1.]]

代码#2：

# Python program explaining
# numpy.ndarray.getfield() function
  
# importing numpy as geek 
import numpy as geek 
            
x = geek.diag([2.+2.j]*2)
            
gfg = x.getfield(geek.float64, offset = 8)
      
print(gfg)

输出 ：

[[ 2.  0.]
 [ 0.  2.]]