在此numpy.ma.mask_rows()函數中,對包含掩碼值的2D數組的行進行掩碼。該函數是軸等於0的mask_rowcols的快捷方式。
用法: numpy.ma.mask_rows(arr, axis = None)
參數:
arr :[array_like, MaskedArray] The array to mask. The result is a MaskedArray.
axis :[int, optional] Axis along which to perform the operation. Default is None.
返回:[MaskedArray]輸入數組的修改版本。
代碼1:
# Python program explaining
# numpy.ma.mask_rowcols() function
# importing numpy as geek
# and numpy.ma module as ma
import numpy as geek
import numpy.ma as ma
arr = geek.zeros((4, 4), dtype = int)
arr[2, 2] = 1
arr = ma.masked_equal(arr, 1)
gfg = ma.mask_rows(arr)
print (gfg)
輸出:
[[0 0 0 0] [0 0 0 0] [-- -- -- --] [0 0 0 0]]
代碼2:
# Python program explaining
# numpy.ma.mask_rows() function
# importing numpy as geek
# and numpy.ma module as ma
import numpy as geek
import numpy.ma as ma
arr = geek.zeros((5, 5), dtype = int)
arr[3, 3] = 1
arr = ma.masked_equal(arr, 1)
gfg = ma.mask_rows(arr)
print (gfg)
輸出:
[[0 0 0 0 0] [0 0 0 0 0] [0 0 0 0 0] [-- -- -- -- --] [0 0 0 0 0]]
相關用法
- Python Wand function()用法及代碼示例
- Python map()用法及代碼示例
- Python hex()用法及代碼示例
- Python dir()用法及代碼示例
- Python sum()用法及代碼示例
- Python ord()用法及代碼示例
- Python id()用法及代碼示例
- Python now()用法及代碼示例
- Python cmp()用法及代碼示例
- Python int()用法及代碼示例
- Python tell()用法及代碼示例
- Python str()用法及代碼示例
- Python oct()用法及代碼示例
- Python property()用法及代碼示例
- Python Wand fx()用法及代碼示例
- Python math.cos()用法及代碼示例
注:本文由純淨天空篩選整理自sanjoy_62大神的英文原創作品 numpy.ma.mask_rows() function | Python。非經特殊聲明,原始代碼版權歸原作者所有,本譯文未經允許或授權,請勿轉載或複製。