Python Data Visualisation for Business Analyst – How to plot population pyramid in Python

(Python Data Visualisation Tutorials)

Python Data Visualisation for Business Analyst – How to plot population pyramid in Python

In this data visualisation tutorial, How to plot population pyramid in Python.

Population pyramid can be used to show either the distribution of the groups ordered by the volume. Or it can also be used to show the stage-by-stage filtering of the population as it is used below to show how many people pass through each stage of a marketing funnel.



Run this once before the plot’s code. The individual charts, however, may redefine its own aesthetics.

/* !pip install brewer2mpl */
import numpy as np
import pandas as pd
import matplotlib as mpl
import matplotlib.pyplot as plt
import seaborn as sns
import warnings; warnings.filterwarnings(action='once')

large = 22; med = 16; small = 12
params = {'axes.titlesize': large,
          'legend.fontsize': med,
          'figure.figsize': (16, 10),
          'axes.labelsize': med,
          'axes.titlesize': med,
          'xtick.labelsize': med,
          'ytick.labelsize': med,
          'figure.titlesize': large}
%matplotlib inline

/* Version */

How to plot population pyramid in Python

Download Code:

/* Read data */
df = pd.read_csv("email_campaign_funnel.csv")

/* Draw Plot */
plt.figure(figsize=(13,10), dpi= 80)
group_col = 'Gender'
order_of_bars = df.Stage.unique()[::-1]
colors = [[group_col].unique())-1)) for i in range(len(df[group_col].unique()))]

for c, group in zip(colors, df[group_col].unique()):
    sns.barplot(x='Users', y='Stage', data=df.loc[df[group_col]==group, :], order=order_of_bars, color=c, label=group)

/* Decorations */
plt.ylabel("Stage of Purchase")
plt.title("Population Pyramid of the Marketing Funnel", fontsize=22)


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