Answers for "sort by column python"

23

sort dataframe by column

df.sort_values(by='col1', ascending=False)
Posted by: Guest on April-30-2020
28

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    4
Posted by: Guest on February-06-2020
2

pandas sort columns by name

df = df.reindex(sorted(df.columns), axis=1)
Posted by: Guest on November-26-2020
3

dataframe, sort by columns

final_df = df.sort_values(by=['2'], ascending=False)
Posted by: Guest on September-22-2020
1

sort 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])]
Posted by: Guest on August-17-2020
3

sort df by column

df.rename(columns={1:'month'},inplace=True)
df['month'] = pd.Categorical(df['month'],categories=['December','November','October','September','August','July','June','May','April','March','February','January'],ordered=True)
df = df.sort_values('month',ascending=False)
Posted by: Guest on May-29-2020

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