Change Log for 91-DIVOC #01

This change log lists the major changes made to "An interactive visualization of the exponential spread of COVID-19".
An interactive visualization of the exponential spread of COVID-19 >>

August 7 - US-Total, Computed

Johns Hopkins University has always reported the “United States” as part of their list of countries and, in a second dataset, reported the 50 states and US territories as individual locations. The number of confirmed cases and deaths between the “United States” total and the sum of the 50 states’ data has always varied slightly, accounting for the cases is the US territories, cruise ships, repatriation flights, and more. Previous cases of large discrepancies between the data have always been paired with a spike in a single state data where a number of previously unreported cases were reported in a single day.

Recently, the difference between the sums (particularly in the number of deaths) has become significant without a known cause. To help dive deep into this difference, I’ve added a new “Data” value in the graphs of the US states:

August 5

Over the past few months, one of the most common question I was asked was “how did you get started?” or “how was this created?”. Over the past week, I created a video that dives into how 91-DIVOC was created:

This is my first exploration of video, so I’d love your feedback! I believe it should give you some insight in how this visualization is created. :)

August 3

July 30

July 29

July 27

July 25

July 24 - Quality

In all of these visualizations, I created visualizations that helped me make sense of the COVID-19 data. At this point, I can spend hours diving into the data and there’s few questions that I am unable to answer using 91-DIVOC graphs. Therefore, for the next week, I’m looking to explore better documentation of this tool, fix any remaining bugs, and focus on quality improvements. As part of this, I have already:

Additionally, I’ve started some initial work on some visualizations beyond COVID-19. If you’d like to get a once-a-month update on data-forward visualizations, I have an e-mail list that I’ll be providing a monthly update of all the latest visualizations to nerd out with.

Let me know if you find any bugs and thanks for all the support! :)

July 21 - Interactive Visualization of COVID-19 in Illinois

July 20 - Dynamic Label Placement

July 18

July 17 – Our World in Data

This is the most significant update to 91-DIVOC in quite some time, adding a new data source from Our World in Data (Oxford University, et al). The Our World in Data dataset provides testing data for a number of global countries, allowing for “COVID-19 Tests” and “Test Positivity” in the “Data” selection on the countries graph, and other changes:

As part of working with Our World in Data, a few bugs were fixed and other minor display changes:

The default data selection is now “Johns Hopkins & Our World in Data”, using Our World in Data for the countries graph and Johns Hopkins for the United States data. The data source will always be displayed at the bottom of the graph.

July 16

July 15 – GIF and WebM Animation Saving

Animations can now be saved right in your web browser!

In addition, the saving of PNG images also improved:

July 13 – Improved Tooltip

July 9 - Region Enhancements

The most recent update enhances the region selections – we can explore now, for example, how the United States might compare to various WHO regions as a whole.

Additionally, the code was refactored to allow for better exploration of regions in future updates:

July 6 - Additional Global “Show” Options

July 5 - Animation Optimization

July 4 - “Add Additional Data” Improvements

Many thanks to @TheWheelMe for the initial report.

July 2 - Add Additional Data

July 1 - CSV Export

June 30

June 29 - Generate Report

June 26 - Released 91-DIVOC-04

June 23 - Added EU

June 18 - Default to Linear

June 17 - Add US States to Countries Map

June 16

June 14 - US Regions

June 11

June 10 - Multiple Data Sources

June 9

June 7 - Global and Europe

June 3

June 1

May 27 - Cumulative Mortality Rate

May 26

May 24 - Test Positivity Rate

May 22

May 21 - Saving Image

May 19 - Easy Multi-Selection on Desktop

May 18 - Animation

May 16+17 - Right-align by Date

May 12

May 11 - Weeks Matter

May 10

May 6 — Cases per Day

May 4 — Individual Visualizations

April 30 — Mobile Improvements

April 24 — Hospitalizations and COVID-19 Tests for US States

April 21

April 20

April 17

April 16 — One Week Average Cases/Deaths

April 15 — Overview Page

April 13

April 12 – Multiple Highlights

April 11 – “Highlight Only” View (and Mobile Improvements)

April 10 – Dynamic Trendlines

April 9 – Axis Zoom

March 21 – April 8

March 21 – Initial Release