This is a collection of advanced dataviz examples using Vega, Vega-Lite, Deneb and Power BI. All the work is original and where this has been inspired by the work of others, I have pointed this out.
I thought it would be interesting to plot the recent bank failures (as reported and managed by FDIC) against those from 2008.
Online editor (inflation adjusted)
A template for a multi-year calendar using Vega-Lite.
Inspired by the amazing Mike Bostock.
An implementation of the Graham Scan algorithm for a convex hull using only transforms and signals in Vega.
A dataviz made in Vega and PowerBI for the coronation of Charles III.
An animated map using Vega showing the spread of Covid-19 across the UK using data from https://coronavirus.data.gov.uk/.
Topojson can be a bit tricky to get working in the certified Deneb visual (no loading from external sources) but the .pbix below shows this can be done by embedding the topojson inline.
Online Editor (click to start)
A fun animation showing transition between different words using Vega. Text co-ordinates were genenerated using P5.
Online Editor (click to start)
Inspired by the amazing Daniel Shiffman at The Coding Train.
An experiment using Vega to create a firework simulation.
Online Editor (click to start)
Inspired by the amazing Daniel Shiffman at The Coding Train.
A force direct graph which supports pan, zoom, node drag, dynamic labels, network highlighting and arrows showing the transfer direction.
A Gantt chart implemented in Vega.
An infographic style bar chart implemented in Vega using data driven SVG paths.
A Mekko bar chart showing global miltitary spending in 2022 implemented in Vega using data from SIPRI.
Mekko charts come in two main flavours:
- A Mekko bar chart with the y-axis acting like a normal stacked bar chart but with a normalised x-axis (percentage based) so you can see the proportion taken by each major segment.
- A Marimekko chart where both the x-axis and y-axis are normalised (percentage based).
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An hierarchical tree chart implemented in Vega that supports colour coding of branches, expandable nodes, zooming and panning.
A faceted spider chart which was my winning submission to a competition using a BBC Good Food pancake recipe dataset and built with Deneb, Vega and PowerBI. In Vega, each axis can have its own scale which is essential for comparing different dimensions.
A parliament chart created using Vega.
Inspired by the amazing Flerlage Twins
An animated beeswarm chart of the S&P performance from 07/07/21 - 06/07/22 made using Vega. The result can be quite hypnotic! Data was sourced from Yahoo Finance and scraped using Power Automate Desktop.
Sankey charts (allvuial charts) are great for visualising a business process or simplifying a complex data flow like Microsoft’s FY23 Q2 income statement.
It is very configurable and I’ve tried to account for as many edge cases I can think of.
Inspired by:
https://www.sankeyart.com/sankeys/public/142/
A fun experiment using Vega to create a starfield simulation.
Online Editor (click to start)
Inspired by the amazing Daniel Shiffman at The Coding Train.
A competition entry using a tennis grand slam dataset made using Deneb, Vega and Power BI.
Unit charts can be an engaging and eye catching tool to have in an analyst’s toolbox. Here's two created using Vega and Vega-Lite
A useful variance chart created using Vega-Lite showing actuals, forecasts (or budgets), absolute variance and percentage variance.
Waffle charts break a lot of dataviz best practices but sometimes, you just need a striking visual to make the numbers stand out and pop in a report. They can also be ideal for infographics.
As well as the faceted percentage example below, I have also included versions for faceted absolute, stacked absolute and stacked percentage as each have their place.
