Georgios Karamanis
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karaman.is
Georgios Karamanis
@karaman.is
Dataviz designer, psychiatrist, PhD student

https://karaman.is
For this week's #TidyTuesday a faceted scatterplot showing TB case notification rate vs mortality rate by WHO region in 2023.

Code: github.com/gkaramanis/t...

#RStats #dataviz
November 16, 2025 at 12:55 PM
I visualized the Flint water crisis data for this week's #TidyTuesday showing how sample exclusions masked lead contamination.

Code: github.com/gkaramanis/t...

#RStats #dataviz
November 10, 2025 at 6:46 PM
Day 5 of #30DayMapChallenge, Earth

Nature Index 2025 for countries/territories

Code: github.com/gkaramanis/3...

#dataviz #spatial #Rstats #map #science #research
November 8, 2025 at 2:52 PM
Day 4 of #30DayMapChallenge, My data

Maps showing the locations of affiliations for me and my coauthors across six of our research papers.

Code: github.com/gkaramanis/3...

#dataviz #spatial #Rstats #map #science #research
November 5, 2025 at 6:12 AM
Day 3 of #30DayMapChallenge, Polygons
Uppsala University, founded in 1477, is the oldest university in the Nordic countries. Here are the 30 buildings marked as 'university' and labeled with a name on OpenStreetMap

Code: github.com/gkaramanis/3...

#dataviz #spatial #Rstats #science #research
November 3, 2025 at 9:08 PM
Day 2 of #30DayMapChallenge, Lines

Uppsala University researchers have collaborated with hundeds of research institutions worldwide. More than 14,000 publications have been co-authored with Karolinska Institutet alone.

Code: github.com/gkaramanis/3...

#dataviz #spatial #Rstats #science #research
November 2, 2025 at 7:05 PM
I created a heatmap for this week's #TidyTuesday showing UK literary prize demographics with data from @post45data.bsky.social. White British authors account for 61% of winners vs. 46% shortlisted. Men win 56% vs. 46% shortlisted.

Code: github.com/gkaramanis/t...

#RStats #dataviz
November 2, 2025 at 5:11 PM
Day 1 of #30DayMapChallenge, Points

There are almost 120,000 research organizations, in more than 17,000 locations, registered in the Research Organization Registry @researchorgs.bsky.social

#Rstats #dataviz #spatial #map #science #research
November 1, 2025 at 12:41 PM
#Makingof of this week’s #TidyTuesday
October 26, 2025 at 6:56 PM
For this week's #TidyTuesday, rainfall from 12 UK weather stations 2012-2024. I’ve been wanting to try the idea of using letter heights to show data for some time, now possible thanks to {flexfont} by @coolbutuseless.fosstodon.org.ap.brid.gy

Code: github.com/gkaramanis/t...

#RStats #dataviz
October 26, 2025 at 2:30 PM
For this week's #TidyTuesday, I explored global differences in severe food insecurity between women and men. In 78 countries, women face higher rates, with the largest gaps seen in Pakistan and Afghanistan.

Code: github.com/gkaramanis/t...

#RStats #dataviz
October 19, 2025 at 1:47 PM
For this week's #TidyTuesday, EuroLeague basketball club championships from 1958 to 2024, across four competition formats. Used Wikipedia data instead of the provided dataset 😅

Code: github.com/gkaramanis/t...

#RStats #dataviz
October 12, 2025 at 2:33 PM
For this week's #TidyTuesday, crane migration at Lake Hornborga, Sweden, from 2002 to 2024

Code: github.com/gkaramanis/t...

#RStats #dataviz
October 5, 2025 at 2:52 PM
For this week's #TidyTuesday, the top 16 chess players for August and September

Code: github.com/gkaramanis/t...

#RStats #dataviz
September 28, 2025 at 9:17 AM
For this week's #TidyTuesday, pasta carbs and fat. Inspired by @cborstell.bsky.social's plot bsky.app/profile/cbor...

Code: github.com/gkaramanis/t...

#RStats #dataviz
September 21, 2025 at 11:57 AM
For this week's #TidyTuesday, a visualization showing how more and more countries allow visa-free travel to most of the world's destinations

Code: github.com/gkaramanis/t...

#RStats #dataviz
September 12, 2025 at 12:51 PM
For this week's #TidyTuesday, hex grid maps showing seasonal shifts in frog observations across Australia

Code: github.com/gkaramanis/t...

#RStats #dataviz
September 7, 2025 at 4:13 PM
For this week’s #TidyTuesday I looked at summer Billboard Hot 100 number one songs. Since the 90s fewer song debut at #1 in summer but those that do tend to stay at the top for more weeks

Code: github.com/gkaramanis/t...

#RStats #dataviz
August 31, 2025 at 11:24 AM
Explore Scotland’s tallest Munros and Munro tops with this week’s #TidyTuesday

Code: github.com/gkaramanis/t...

#RStats #dataviz
August 24, 2025 at 1:41 PM
Explore extreme weather attribution studies with a Shiny app for this week's #TidyTuesday

App: karamanis.shinyapps.io/ExtremeWeath...
Code: github.com/gkaramanis/t...

#RStats #dataviz
August 17, 2025 at 12:11 PM
Reposted by Georgios Karamanis
some light teasing for an upcoming quarto revealjs plugin I have been working on
August 12, 2025 at 7:03 PM
Income inequality for this week's #TidyTuesday. How do countries redistribute income through taxes and transfers?

Code: github.com/gkaramanis/t...

#RStats #dataviz
August 10, 2025 at 1:04 PM
Reposted by Georgios Karamanis
unmute
August 4, 2025 at 5:28 PM
Something different for this week's #TidyTuesday, looking at Netflix's creative charting, as spotted by @nrennie.bsky.social

I measured the actual bar lengths from Netflix's H1 2025 engagement report and compared them to what they should be based on view counts.

#RStats #dataviz
August 3, 2025 at 1:26 PM
A Shiny app for last week's #TidyTuesday. Explore and learn about selected NYC subway artworks

App: karamanis.shinyapps.io/New_Yorks_Un...
Code: github.com/gkaramanis/t...

#RStats #dataviz
July 28, 2025 at 11:45 AM