Note: This thread is related to #Coronavirus #COVID19

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John Burn-Murdoch+ Your Authors @jburnmurdoch Stories, stats & scatterplots for @FinancialTimes | Daily updates of the coronavirus trajectory tracker | [email protected] | #dataviz May. 20, 2020 1 min read + Your Authors

I was on a call with a bunch of data journalists last month where we discussed our ...surprise... that Johns Hopkins used Worldometers as a source for its Covid data
🔢🔄👀🤔

It’s kinda mad that so many kept using their numbers given the complete opacity  https://edition.cnn.com/interactive/2020/05/world/worldometer-coronavirus-mystery/ 

Early on, we were using Worldometers for some of our sourcing, but stopped in early April after @MaxCRoser drew attention to their unreliability and complete lack of transparency

Whole books could be written on the Wild West that is Covid data
• Weeks-long backlogs of deaths or cases being casually attributed to a single day
• Countries’ definitions changing abruptly, leading to people rising from the dead
• Fat-finger mistakes quadrupling death tolls

Updating the trajectory charts is a great demo of dataviz as fact-checking tool

"Data done, how does it look when we plot it?"

"Ah, 3 countries resurrected people, one went from averaging 3 deaths to 100, one vanished"

Far easier to spot weirdness in a chart than a spreadsheet


You can follow @jburnmurdoch.



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