sort series in dataframe in descending order pandas code example
Example 1: df sort values
>>> df.sort_values(by=['col1'], ascending = False)
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
Example 2: sort columns dataframe
df = df.reindex(sorted(df.columns), axis=1)
Example 3: how to sort the dataframe in python
import pandas as pd
df1=pd.read_csv("registration.csv")
df2=pd.read_csv("payment.csv")
df=pd.merge(df1,df2)
print(df.iloc[:,[0,1,3,4]].to_string(index=False))