Python Numpy MaskedArray.compressed()函数

numpy.MaskedArray.compressed()函数将所有未被屏蔽的数据作为一个一维数组返回。

语法: numpy.MaskedArray.compressed(self)

返回 : [ndarray] 返回一个新的ndarray，该ndarray容纳了非屏蔽的数据。

代码#1：

# Python program explaining
# numpy.MaskedArray.compressed() function
  
# importing numpy as geek  
# and numpy.ma module as ma 
import numpy as geek 
import numpy.ma as ma
  
arr = geek.ma.array(geek.arange(10), mask =[0]*6 + [1]*4)
gfg = arr.compressed()
  
print(gfg)

输出 :

[0 1 2 3 4 5]

代码#2：

# Python program explaining
# numpy.MaskedArray.compressed() function
  
# importing numpy as geek  
# and numpy.ma module as ma 
import numpy as geek 
import numpy.ma as ma
  
arr = geek.ma.array(geek.arange(7), mask =[0]*4 + [1]*3)
gfg = arr.compressed()
  
print(gfg)

输出 :

[0 1 2 3]