numpy . ma . notmasked _ contact 函数| Python
原文:https://www . geesforgeks . org/numpy-ma-notmasked _ continental-function-python/
numpy.ma.notmasked_contiguous()
函数沿着给定的轴查找掩码数组中连续的未掩码数据。
语法:numpy . ma . notmasked _ contact(arr,axis = None)
参数: arr : 【阵 _ 象】输入阵。 轴:【int,可选】执行操作的轴。默认值为无。
返回:【列表】数组中未屏蔽索引的切片(开始和结束索引)列表。如果输入是 2d,并且指定了轴,则结果是列表列表。
代码#1 :
# Python program explaining
# numpy.ma.notmasked_contiguous() function
# importing numpy as geek
# and numpy.ma module as ma
import numpy as geek
import numpy.ma as ma
arr = geek.arange(12).reshape((3, 4))
mask = geek.zeros_like(arr)
mask[1:, :-1] = 1; mask[0, 1] = 1; mask[-1, 0] = 0
ma = geek.ma.array(arr, mask = mask)
gfg = geek.ma.notmasked_contiguous(ma)
print (gfg)
输出:
[切片(0,1,无),切片(2,4,无),切片(7,9,无),切片(11,12,无)]
代码#2 :
# Python program explaining
# numpy.ma.notmasked_contiguous() function
# importing numpy as geek
# and numpy.ma module as ma
import numpy as geek
import numpy.ma as ma
arr = geek.arange(12).reshape((3, 4))
mask = geek.zeros_like(arr)
mask[1:, :-1] = 1; mask[0, 1] = 1; mask[-1, 0] = 0
ma = geek.ma.array(arr, mask = mask)
gfg = geek.ma.notmasked_contiguous(ma, axis = 1)
print (gfg)
输出:
[[切片(0,1,无),切片(2,4,无)],[切片(3,4,无)],[切片(0,1,无),切片(3,4,无)]