Plotting pandas dataframe with two groups

Question

I'm using Pandas and matplotlib to try to replicate this graph from tableau:

So far, I have this code:

group = df.groupby(["Region","Rep"]).sum()

total_price = group["Total Price"].groupby(level=0, group_keys=False)

total_price.nlargest(5).plot(kind="bar")

Which produces this graph:

It correctly groups the data, but is it possible to get it grouped similar to how Tableau shows it? 

Answer 1

• using the respective matplotlib methods (ax.text and ax.axhline), You can create some lines and labels.

import pandas as pd

import numpy as np; np.random.seed(5)

import matplotlib.pyplot as plt

a = ["West"]*25+ ["Central"]*10+ ["East"]*10

b = ["Mattz","McDon","Jeffs","Warf","Utter"]*5 + ["Susanne","Lokomop"]*5 + ["Richie","Florence"]*5

c = np.random.randint(5,55, size=len(a))

df=pd.DataFrame({"Region":a, "Rep":b, "Total Price":c})

 

group = df.groupby(["Region","Rep"]).sum()

total_price = group["Total Price"].groupby(level=0, group_keys=False)

gtp = total_price.nlargest(5)

ax = gtp.plot(kind="bar")

#draw lines and titles

count = gtp.groupby("Region").count()

cum = np.cumsum(count)

for i in range(len(count)):

    title = count.index.values[i]

    ax.axvline(cum[i]-.5, lw=0.8, color="k")

    ax.text(cum[i]-(count[i]+1)/2., 1.02, title, ha="center",

            transform=ax.get_xaxis_transform())

# shorten xticklabels

ax.set_xticklabels([l.get_text().split(", ")[1][:-1] for l in ax.get_xticklabels()])

plt.show()