g2_revenue.py

#calculate revenue for each customer
tx_uk['Revenue'] = tx_uk['UnitPrice'] * tx_uk['Quantity']
tx_revenue = tx_uk.groupby('CustomerID').Revenue.sum().reset_index()

#merge it with our main dataframe
tx_user = pd.merge(tx_user, tx_revenue, on='CustomerID')

#plot the histogram
plot_data = [
    go.Histogram(
        x=tx_user.query('Revenue < 10000')['Revenue']
    )
]

plot_layout = go.Layout(
        title='Monetary Value'
    )
fig = go.Figure(data=plot_data, layout=plot_layout)
pyoff.iplot(fig)