/Python/Set difference in multidimensional array numpy

Set difference in multidimensional array numpy

>>> import numpy as np
>>> a1 = np.array([[1,2,3],[4,5,6],[7,8,9]])
>>> a2 = np.array([[4,5,6],[7,8,9],[1,1,1]])
>>> a1_rows = a1.view([('', a1.dtype)] * a1.shape[1])
>>> a2_rows = a2.view([('', a2.dtype)] * a2.shape[1])
>>> np.setdiff1d(a1_rows, a2_rows).view(a1.dtype).reshape(-1, a1.shape[1])
array([[1, 2, 3]])

Source: stackoverflow.com

Similar codes

0 vote200 views1 answer
WARNING: Ignoring invalid distribution c program files python39libsite-packages
Python
0 vote188 views1 answer
Find width and height of imported video frame opencv2
Python
-1 vote196 views1 answer
Python launch prompt
Python
1 vote200 views1 answer
Displays unique data including null data
Python
6 votes176 views2 answers
Remove index in pd.read
Python
10 votes193 views3 answers
Python click on screen
Python
0 vote224 views1 answer
Dataframe pandas to spark
Python
-1 vote197 views4 answers
Play video in colab
Python
0 vote269 views1 answer
How to sort the dataframe in python by axis
Python
-1 vote147 views3 answers
How to use a variable from another function python
Python