Group by to a collect datafame

In [1]: df = pd.DataFrame( {'a':['A','A','B','B','B','C'], 'b':[1,2,5,5,4,6]})
        df

Out[1]: 
   a  b
0  A  1
1  A  2
2  B  5
3  B  5
4  B  4
5  C  6

In [2]: df.groupby('a')['b'].apply(list)
Out[2]: 
a
A       [1, 2]
B    [5, 5, 4]
C          [6]
Name: b, dtype: object

In [3]: df1 = df.groupby('a')['b'].apply(list).reset_index(name='new')
        df1
Out[3]: 
   a        new
0  A     [1, 2]
1  B  [5, 5, 4]
2  C        [6]

Source: stackoverflow.com

Similar codes

0 vote358 views1 answer
Python requests with login
Python
5 votes346 views2 answers
Converting decimal to hex in python
Python
-2 votes336 views1 answer
Come scaricare moduli pyton
Python
0 vote338 views1 answer
Not want to assign all values of a collection of values in python
Python
0 vote350 views1 answer
Python get ids from array of objects
Python
0 vote351 views1 answer
Ldap python how to print entries
Python
0 vote322 views1 answer
Sin , Cos Graph using python turtle.
Python
0 vote387 views1 answer
How to create api for get data in django rest framework
Python Django
2 votes332 views1 answer
How to downgrade python to 3.7 4 anaconda
Python
11 votes329 views9 answers
Trump
Python