And that's a wrap for #30DayChartChallenge!
The personal theme for this year was Uppsala transportation. Additional constraints were using the same color palette, fonts, plot orientation and dimensions across all plots.
#Rstats code for all 24 plots at github.com/gkaramanis/3...
#dataviz
This week's #TidyTuesday is about twin cities. I built a scrollytelling map about Rio de Janeiro's 93 sister city agreements
Made with Quarto and Closeread
Interactive: 019e2679-54db-2e9a-2e03-8bbc8b92210f.share.connect.posit.cloud
Code: github.com/gkaramanis/t...
#RStats #dataviz
Screenshots:
This week's #TidyTuesday maps traditional biomass (firewood, charcoal, dung) as a share of final energy use from 1990 to 2010. In the world's poorest countries it supplied most of their energy, a marker of energy poverty rather than a green choice.
Code: github.com/gkaramanis/t...
#RStats #dataviz
This week's #TidyTuesday looks at maternity leave across Europe: How many weeks before and after birth, and how much is mandatory vs voluntary. Ireland leads at around 40 weeks total, the UK at just 2.
This week's #TidyTuesday is about Italian industrial production. A simple line chart combining Istat statistics with data from Wikipedia
Code: github.com/gkaramanis/t...
#RStats #dataviz
This week's #TidyTuesday is about films based on video games
Built as a Quarto reveal.js presentation using the timeline extension by @emilhvitfeldt.bsky.social
Interactive version at karaman.is/blog/2026/06...
Code: github.com/gkaramanis/t...
#RStats #QuartoPub #dataviz
This week's #TidyTuesday is about Crossref metadata quality. I made a table showing how well the top 20 countries by journal article volume document their research
Made with {gt}
Code: github.com/gkaramanis/t...
#RStats #dataviz
This week's #TidyTuesday is about US agricultural import tariffs. Sugar is the only category with a hard annual import quota. Once that fills, trade effectively stops.
Code: github.com/gkaramanis/t...
#RStats #dataviz
#day29 of #30DayChartChallenge, (almost) Monochrome
code: github.com/gkaramanis/3...
#RStats #dataviz
