How to plot pandas groupby values in a graph?

Question

I have a csv file which contains Gender and Marriage status along with few more columns like below.

Loan_ID,Gender,Married,Dependents,Education,Self_Employe         


        

Answer 1

You can use groupby + size and then use Series.plot.bar:

Difference between count and size.

groups = df.groupby(['Gender','Married']).size()
groups.plot.bar()

Another solution is add unstack for reshape or crosstab:

print (df.groupby(['Gender','Married']).size().unstack(fill_value=0))
Married   No  Yes
Gender           
Female    80   31
Male     130  357

df.groupby(['Gender','Married']).size().unstack(fill_value=0).plot.bar()

Or:

pd.crosstab(df['Gender'],df['Married']).plot.bar()