Technical requirements
The material in this chapter requires Elasticsearch version 7.9 or above and Python 3.7 or above. Code samples and snippets required for this chapter will be added under the folder Chapter 9 - Introduction to Data Frame Analytics
in the book's GitHub repository (https://github.com/PacktPublishing/Machine-Learning-with-Elastic-Stack-Second-Edition/tree/main/Chapter%209%20-%20Introduction%20to%20Data%20Frame%20Analytics). In such cases where some examples require a specific newer release of Elasticsearch, this will be mentioned before the example is presented.