create multiple columns from list of values of another column

Question

I have the dataframe that looks like:

Groupe       Id   MotherName   FatherName    Field
Advanced    56    Laure         James        English-107,Economics,          


        

Answer 1

You can use concat and str.get_dummies:

print pd.concat([df['Id'], df['Field'].str.get_dummies(sep=",")], axis=1)
   Id  Economics  English-107  English-2  History  Java-2  Literature  \
0  56          1            1          0        1       0           0   
1  11          0            0          0        0       1           0   
2   6          0            0          1        0       0           1   
3  43          0            0          0        1       0           1   
4  14          0            1          0        0       1           0   

   Management  Mathematics  Philosophy  Web-development  
0           1            0           1                0  
1           0            0           0                1  
2           0            0           0                0  
3           0            1           1                0  
4           1            0           0                0  

If you need count values, you can use pivot_table (I add one string Economics for testing):

df1 = df['Field'].str.split(',',expand=True).stack()
                                            .groupby(level=0)
                                            .value_counts()
                                            .reset_index()
df1.columns=['a','b','c']
print df1.pivot_table(index='a',columns='b',values='c').fillna(0)
b  Economics  English-107  English-2  History  Java-2  Literature  Management  \
a                                                                               
0          2            1          0        1       0           0           1   
1          0            0          0        0       1           0           0   
2          0            0          1        0       0           1           0   
3          0            0          0        1       0           1           0   
4          0            1          0        0       1           0           1   

b  Mathematics  Philosophy  Web-development  
a                                            
0            0           1                0  
1            0           0                1  
2            0           0                0  
3            1           1                0  
4            0           0                0