Lollipop chart

A lollipop chart can be used to display ranking in the data. It is similar to an ordered bar chart.

Let's consider the carDF dataset. It can be found in the GitHub repository for chapter 2. Alternatively, it can be used from the GitHub link directly, as mention in the following code:

1. Load the dataset:

#Read the dataset

carDF = pd.read_csv('https://raw.githubusercontent.com/PacktPublishing/hands-on-exploratory-data-analysis-with-python/master/Chapter%202/cardata.csv')

2. Group the dataset by manufacturer. For now, if it does not make sense, just remember that the following snippet groups the entries by a particular field (we will go through groupby functions in detail in Chapter 4, Data Transformation):

#Group by manufacturer and take average mileage
processedDF = carDF[['cty','manufacturer']].groupby('manufacturer').apply...