sb.countplot(data=fuel_econ, x='VClass', hue='trans_type')
pd.crosstab(fuel_econ['VClass'], fuel_econ['trans_type']).plot.bar()
plt.xticks(rotation=15)
plt.ylabel('count')
plt.title("Using Pandas' plot backend")
plt.show()
df.groupby(['feature1', 'feature2']).size().unstack()
.plot(kind='bar', stacked=True)