Book Image

Learning Jupyter

By : Dan Toomey
Book Image

Learning Jupyter

By: Dan Toomey

Overview of this book

Jupyter Notebook is a web-based environment that enables interactive computing in notebook documents. It allows you to create and share documents that contain live code, equations, visualizations, and explanatory text. The Jupyter Notebook system is extensively used in domains such as data cleaning and transformation, numerical simulation, statistical modeling, machine learning, and much more. This book starts with a detailed overview of the Jupyter Notebook system and its installation in different environments. Next we’ll help you will learn to integrate Jupyter system with different programming languages such as R, Python, JavaScript, and Julia and explore the various versions and packages that are compatible with the Notebook system. Moving ahead, you master interactive widgets, namespaces, and working with Jupyter in a multiuser mode. Towards the end, you will use Jupyter with a big data set and will apply all the functionalities learned throughout the book.
Table of Contents (16 chapters)
Learning Jupyter
About the Author
About the Reviewer

JavaScript Hello World Jupyter Notebook

Once it's installed, we can attempt the first JavaScript notebook by clicking on the New menu and selecting JavaScript. We name the notebook Hello World Javascript and put the following lines in this script:

var msg = "Hello, World!"

This script sets a variable and displays the contents of the variable. After entering the script and running (Cell | Run All) we end up with a notebook screen that looks like the following screenshot:

We should point out some of the highlights of this page:

  • We have the now-familiar language logo in the upper-right that depicts the type of script in use.

  • There is output (Out) from every line of the notebook. This appears to be a work in progress as line numbering is not meaningful.

  • More importantly, we see the true output of the notebook (line 2 in the preceding screenshot) where the string is echoed.

  • Otherwise, the notebook looks as familiar to the other types we have seen.

If we look at the contents of the...