Data Vis

NYTimes on Location Tracking

The New York Times published a fantastic exposé and data visualistion site about the scale of gathering and selling of location data. They obtained a file with 50 billion location pings of 12 million Americans and sifted through the data in horror. The data can be bought from data aggregation companies that offer data collected from apps on your smartphone, like news or coupons apps, not from telecom companies or the big tech companies.

Road Deaths

Chris Sharp has a fascinating post on City Metric about the amount of road deaths on British roads between 1997 and 2018. The graph of deaths clearly shows decline for a number of years and then stagnation. Chris investigates the reasons behind this and discovers investment, or lack thereof, in speed control measures and speed cameras has a direct result in the number of deaths on the roads.

Microsoft SandDance

Microsoft have open-sourced their SandDance data visualisation tool. The Microsoft Research tool allows data to be presented as unit visualisations for datasets up to 500k rows, instead of traditional data aggregation visualisation. The tool has been re-written from as an embeddable component in javascript stacks. It is also available as a Visual Studio Code and Azure Data Studio extension.

Page Speed Stats

Backlinko published a bumper report about the page speed stats of 5.2 million web pages. Their results contain a number of interesting items including ranked CMS page speed (Weebly & Squarespace are the fastest) and ranked Javacsript framework page weight for small, medium and large pages (Wink and Gatsby win).


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