There is an array as below;
x=np.array([ ['0', '0'],
['1', '1'],
['7', '10'],
['8', '11'],
[',', '2'],
['4', '3'],
['.', '4'],
['2', '5'],
['5', '6'],
['er014', '7'],
['ww', '8'],
['*', '9']])
I used the following codes to sort this array by the second column but without success. Is there anyone to help?
A= np.take(x, x[:, 1].argsort(), 0)
np.take(x, x[:, 1].astype(int).argsort(), 0)
You may just cast the values for sorting. The overall result of you np.take() will remain as strings.
array([['0', '0'],
['1', '1'],
[',', '2'],
['4', '3'],
['.', '4'],
['2', '5'],
['5', '6'],
['er014', '7'],
['ww', '8'],
['*', '9'],
['7', '10'],
['8', '11']], dtype='<U5')