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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 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

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11d

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

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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

1mo

Georgios Karamanis

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

#day29 of #30DayChartChallenge, (almost) Monochrome code: github.com/gkaramanis/3... #RStats #dataviz

Video

1mo

Georgios Karamanis

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

16d

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

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

1mo

Video

1mo

Georgios Karamanis