matplotlib example plot bar Total Sales by Customer Category (snippet)

Python matplotlib example 'plot bar Total Sales by Customer Category'

Modules used in program:

• import matplotlib.pyplot as plt
• import numpy as np
• import pandas as pd

python plot bar Total Sales by Customer Category

Python matplotlib example: plot bar Total Sales by Customer Category

"""
B-006 - Simple Graphing with IPython and Pandas
https://pbpython.com/simple-graphing-pandas.html
"""

import pandas as pd
import numpy as np
import matplotlib.pyplot as plt

sales=pd.read_csv("https://pbpython.com/extras/sample-salesv2.csv", parse_dates=['date'])
customers = sales[['name','ext price','date']]
customer_group = customers.groupby('name')
sales_totals = customer_group.sum()

customers = sales[['name','category','ext price','date']]

category_group=pd.crosstab(customers.name, customers.category, values=customers['ext price'], aggfunc='sum')

my_plot = category_group.plot(kind='bar',stacked=True,title="Total Sales by Customer", figsize=(9, 7))
my_plot.set_xlabel("Customers")
my_plot.set_ylabel("Sales")
my_plot.legend(["Total","Belts","Shirts","Shoes"], loc=9, ncol=4)

Python links

• Learn Python: https://pythonbasics.org/
• Python Tutorial: https://pythonprogramminglanguage.com