Interactive Development with Jupyter Notebooks

Jupyter Notebooks Web-based interactive development environment Allows a user to configure and arrange a workflow using a web browser Useful for developing Python applications Visualizations (plots) can be embedded! Common Applications: Data Science Scientific Computing Presentations Machine Learning Professor John Carelli, Kutztown University

Where do I get it? Jupyter is available for download at: Jupyter.org However, it is automatically installed as part of the Anaconda distribution Jupyter tutorial can be found here: Jupyter Tutorial The tutorial includes installation instructions Professor John Carelli, Kutztown University

Getting started The easiest way to get started (after installation) is to run the Jupyter Notebook application on your machine On a PC, search for Jupyter in the search box (The tutorial address other approaches) The app will open a console window You can minimize the window, but don t close it! The app will also open a page in a browser tab From here you can open and/or navigate to notebooks Professor John Carelli, Kutztown University

Main Jupyter Navigation Page Professor John Carelli, Kutztown University

First Example greeting.ipynb Download from Examples Navigate to it in main Jupyter Navigation Page Click to open it Professor John Carelli, Kutztown University

Basic Operation Click on a cell and enter Python code To execute the code, click on Run in the menu To create a new cell, click on the + symbol Professor John Carelli, Kutztown University

Basic Operation, cont. Jupyter is based on iPython Cells get run in the order executed The cell number, in brackets, indicates the order in which they were run It MAY NOT be the order they appear on the page! The entire notebook can be re-run from the Run ALL selection in the Cell dropdown Professor John Carelli, Kutztown University

New Notebook To create a new notebook, select Python 3 (ipykernel) from the New dropdown on the main Jupyter Navigation Page It will open a new tab in the browser Professor John Carelli, Kutztown University

Markdown Cells can contain either code or text (documentation) Use the dropdown to select which Double click on a Markdown cell to view the text in raw Markdown mode Run the cell to view the formatted text Professor John Carelli, Kutztown University

Example Markdown cell See the Markdown Cheat-sheet on the course web site Also: Markdown Tutorial Professor John Carelli, Kutztown University