Melbviz

Melbviz is a package for learning how to building interactive visualisation and dashboards in Python, using the libraries including Plotly, Plotly Dash, and ipywidgets, while also learning about Pedestrian traffic in the central business district of Melbourne, Australia. The package is designed around analysing the Melbourne City Council Pedestrian Counting System dataset.

The project consists of:

• A python package, melbviz, that contains the ingredients for building out your own interactive interfaces for exploring Melbourne CBD pedestrian traffic using Dash, a library for building analytic web apps.
• A collection of Jupyter Notebooks for working with the Melbourne pedestrian datasets.

You can use Melbviz either through the live environment on Binder, or by installing it into your local environment. If you are participating in a workshop, then unless otherwise instructed, you want to use the Binder method.

Jupyter Notebooks

These notebooks are found in the notebooks directory. The talk_data_viz.ipynb requires the use of Jupyter Notebook classic to view the RISE presentation. It is recommended to use JupyterLab for the remaining notebooks.

• talk_data_viz.ipynb: A presentation on why we do data visualisation that uses the RISE package
• interactive_data_viz.ipynb: A workshop that goes through the use of the Plotly visualisation package and the ipywidgets package, for doing interactice data visualisation.
• workshop_dashboards1.ipynb and workshop_dashboards1.ipyn: A workshop in two parts that will take you on a dashboarding journey, going from initial discovery and data wrangling to deploying your completed Dash dashboard.

Live Environment on Binder

This repo has been prepared to run on the wonderful Binder service.

This link will spin up a notebook in JupyterLab with all relevant dependencies installed and data downloaded ready to go for you to play around with.

https://mybinder.org/v2/gh/ned2/melbviz/HEAD?urlpath=lab%2Ftree%2Fnotebooks%2Fworkshop_interactive_data_viz.ipynb

Local Installation Instructions

To install Melbviz in your own environment (Ubuntu instructions only sorry), follow the following steps:

Ubuntu system dependencies:

• Python 3.8+
• Nodejs 12.0.0+
• libsnappy-dev

sudo apt-get install libsnappy-dev

Create and activate a new virtual environment, then run, the following commands. Or, if you use pyenv, you can run the make-env.sh to do all of this in one step (see script to change Python version or venv name).

pip install -U pip wheel
pip install -r requirements.txt
pip install -e .

jupyter labextension install @jupyter-widgets/jupyterlab-manager plotlywidget
jupyter labextension install jupyterlab-plotly
jupyter labextension install @ryantam626/jupyterlab_code_formatter
jupyter nbextension install --user --py hide_code
jupyter nbextension enable --user --py hide_code
jupyter serverextension enable --user --py hide_code

Download and prep the data:

./get-data.sh