/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 vote92 views1 answer
Pass 2d array to 1d python
Python
0 vote114 views1 answer
Np.linalg.eigvals positive check python
Python
40 votes107 views6 answers
Add new row to dataframe pandas
Python
0 vote106 views1 answer
Password text in entry in tkinter
Python
0 vote97 views1 answer
How to cycle a list in python
Python
3 votes103 views1 answer
How set dely in python
Python
15 votes104 views6 answers
Infinity in python
Python
0 vote104 views1 answer
Python convert xml to dictionary
Python
2 votes98 views1 answer
Jupyter clear cell output programmatically
Python
28 votes102 views5 answers
Python style console output
Python