sort dataframe by column
df.sort_values(by='col1', ascending=False)sort dataframe by column
df.sort_values(by='col1', ascending=False)sort a dataframe by a column valuepython
>>> df.sort_values(by=['col1'])
col1 col2 col3
0 A 2 0
1 A 1 1
2 B 9 9
5 C 4 3
4 D 7 2
3 NaN 8 4sort array python by column
Sorting a NumPy array by a column orders its rows based
on the ordering of the values in the column.
For example, sorting the array [[8 2 -2] [-4 1 7] [6 3 9]]
by its second column returns [[-4 1 7] [8 2 -2] [6 3 9]].
USE numpy.args
sorted_array = an_array[numpy.argsort(an_array[:, 1])]sort dataframe by column
df.sort_values(by='col1', ascending=False, na_position='first', inplace=True)Copyright © 2021 Codeinu
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