Realtime Corona Virus Dashboard

John Hopkins University’s Center for Systems Science and Engineering maintains this Corona virus dashboard showing the latest statistics and other information regarding the 2019-2020 outbreak in Wuhan. The dashboard is updated every 15 minutes and demonstrates, among others, the total infected, death toll, recovery rate, and geographical spread.

Pimp my RMD: Tips for R Markdown – by Yan Holtz

R markdown creates interactive reports from R code, including interactive reports, documents, dashboards, presentations, and even books. Have a look at this awesome gallery of R markdown examples. Yan Holtz recently created a neat little overview of handy R Markdown tips and tricks that improve the appearance of output documents. He dubbed this overview Pimp my RMD….

Harry Plotter: Shiny App of Spell Usage

In my second Harry Plotter blog (22-Aug-2017), I wrote: I would like to demonstrate how regular expressions can be used to retrieve (sub)strings that follow a specific format. We could use regex to examine, for instance, when, and by whom, which magical spells are cast. Well, Prusinowskik (real name unknown) beat me to it, and how! S/He formed a comprehensive…

Vega: The Grammar of Interactive Graphics

If you have ever programmed in R, you are probably familiar with the Grammar of Graphics due to ggplot2. You can read more about the Grammar of Graphics here, but the general idea behind it is that visualizations can be build up through various layers, each of which have certain characteristics (aesthetics in ggplot2). ggplot(tips, aes(x…