Create dynamic columns in dataframe using pandas

Question

How to create dynamic columns from this pandas dataframe.

 Name, Sex
    a, M
    b, F
    c, M
    d, F

Expected dataframe:

Na         


        

Answer 1

You can create a count variable based on the two columns and then do the pivoting, something like:

import pandas as pd
df.groupby(["Name", "Sex"]).size().unstack(level = 1, fill_value = 0)

# Sex   F   M
#Name       
#   a   0   1
#   b   1   0
#   c   0   1
#   d   1   0

Another option is to use crosstab from pandas:

import pandas as pd
pd.crosstab(df['Name'], df['Sex'])

# Sex   F   M
#Name       
#   a   0   1
#   b   1   0
#   c   0   1
#  d    1   0