Georgios Karamanis
@karaman.is
📤 2688
📥 191
📝 323
Dataviz designer, psychiatrist, PhD
https://karaman.is
This week's
#TidyTuesday
dataset is seven years of daily ocean temperature measurements from Nova Scotia's coastline, recorded at depths down to 40 metres by the Centre for Marine Applied Research Code:
github.com/gkaramanis/t...
#RStats
#dataviz
about 15 hours ago
2
20
4
This week's
#TidyTuesday
dataset is a million digits of π, which is far more than anyone will ever use. The plot shows how many digits we actually need. Spoiler: science caps out way before the computers do Code:
github.com/gkaramanis/t...
#RStats
#dataviz
7 days ago
0
16
0
Another week, another Sims 4 CC update! A laptop with blurry
#Rstats
hex stickers and
@kjhealy.co
's
#dataviz
book (first edition!) with a broken texture, both works in progress. Textures are hard 😅
add a skeleton here at some point
9 days ago
0
2
1
It's been some time since I shared a making of video! Here is one for last week's
#TidyTuesday
add a skeleton here at some point
9 days ago
0
19
3
This week's
#TidyTuesday
maps Norwegian salmon farming mortality rates across 11 coastal production areas. Circle size shows mean monthly mortality rate. Color and labels show the change between 2020–22 and 2023–25. Code:
github.com/gkaramanis/t...
#RStats
#dataviz
10 days ago
0
13
6
Sims 4 CC update! Two
#dataviz
posters and a
#Rstats
onesie based on
@allisonhorst.bsky.social
and
@dgkeyes.com
’s future R superstar aardvark! 😍
allisonhorst.com/everything-e...
add a skeleton here at some point
17 days ago
0
4
1
This week's
#TidyTuesday
looks at how people interpret "highly likely" and "highly unlikely", based on the CAPphrase survey by
@adamkucharczyk.bsky.social
. Non-fluent speakers tend to take the words at face value (though much smaller sample) Code:
github.com/gkaramanis/t...
#RStats
#dataviz
18 days ago
1
19
3
reposted by
Georgios Karamanis
Calle Börstell
21 days ago
Going very minimal for this week's
#TidyTuesday
looking at judged likelihood of likelihood-expressing phrases in English. Code:
github.com/borstell/tid...
#R4DS
#ggplot2
#DataViz
2
20
2
Started playing Sims 4 a couple weeks ago. Surprised there’s no
#rstats
or
#dataviz
CC out there, so I’m on it!
24 days ago
0
13
3
This week's
#TidyTuesday
is about Hermann's tortoises in North Macedonia, where males now vastly outnumber females and the population is collapsing toward extinction. Connected scatterplots are hard to read but I like to try them from time to time Code:
github.com/gkaramanis/t...
#RStats
#dataviz
24 days ago
0
12
1
This week's
#TidyTuesday
is about Science Foundation Ireland grants. Used {tidytext} to find the most distinctive words in proposal titles, then fitted them inside the bars with {ggfittext}. You won't believe 2020's most distinctive words Code:
github.com/gkaramanis/t...
#RStats
#dataviz
about 1 month ago
1
9
5
New Zealand once had over 20 sheep per person. Animated this week's
#TidyTuesday
data showing how sheep numbers, human population, and their ratio have changed from 1960 to 2024. The flock has been shrinking while the population keeps growing! Code:
github.com/gkaramanis/t...
#RStats
#dataviz
loading . . .
about 1 month ago
1
19
1
Mapped all the 2026 Winter Olympics venues across Italy for this week's
#TidyTuesday
. Started simple but kept adding stuff because I couldn't stop myself, had way too much fun working through it all! Code:
github.com/gkaramanis/t...
#RStats
#dataviz
#olympics
about 2 months ago
1
19
1
This week’s
#TidyTuesday
was about edible plants. Not sure if this plot makes much sense, but I had fun experimenting with bitmap fonts and color gradients for the plant names and temperature ranges. Code:
github.com/gkaramanis/t...
#RStats
#dataviz
about 2 months ago
0
20
1
For last week's
#TidyTuesday
, I made a plot about the composition of micro-enterprises, small businesses, and larger companies across different owner types in the Brazilian business registry. Code:
github.com/gkaramanis/t...
#RStats
#dataviz
about 2 months ago
0
7
0
What words define NASA's Astronomy Picture of the Day? For this week's
#TidyTuesday
, I analyzed decades of APOD descriptions to find the 50 most common concepts and their connections. Code:
github.com/gkaramanis/t...
#RStats
#dataviz
2 months ago
2
13
2
reposted by
Georgios Karamanis
Dan Oehm
2 months ago
Having some fun recreating images in ggplot with the help of magick. This was made with geom_ribbon and stitched together with magick::image_animate.
#Rstats
#dataviz
loading . . .
1
37
8
Africa has over 2 000 languages. For this week's
#TidyTuesday
, I tried to visualize this extraordinary diversity with a treemap and a geofaceted map Code:
github.com/gkaramanis/t...
#RStats
#dataviz
2 months ago
2
51
4
For this week's
#TidyTuesday
, I visualized James Bond's drinking habits across the 12 novels using a waffle chart, based on the 2013 study "Were James Bond's drinks shaken because of alcohol induced tremor?" Code:
github.com/gkaramanis/t...
#RStats
#dataviz
3 months ago
0
23
3
Genuary 2026, Day 5: Write "Genuary". Avoid using a font
#RStats
code:
github.com/gkaramanis/a...
#rtistry
#genuary
#genuary5
#creativecoding
3 months ago
0
5
0
For this week's
#TidyTuesday
, I visualized the themes of Charles Dickens's 'A Christmas Carol.' Used ggpage for a page-by-page layout of the novel with color-coded words. Code:
github.com/gkaramanis/t...
#RStats
#dataviz
3 months ago
0
15
1
Genuary 2026, Day 4: Lowres Low-res version of day 1:
bsky.app/profile/kara...
#RStats
code:
github.com/gkaramanis/a...
#rtistry
#genuary
#genuary4
#creativecoding
3 months ago
0
6
1
Genuary 2026, Day 3: Fibonacci forever
#RStats
code:
github.com/gkaramanis/a...
#rtistry
#genuary
#genuary3
#creativecoding
3 months ago
1
24
2
Genuary 2026, Day 2: Twelve principles of animation
#RStats
code:
github.com/gkaramanis/a...
#rtistry
#genuary
#genuary2
#creativecoding
loading . . .
3 months ago
0
12
0
Genuary 2026, Day 1: One color, one shape Code:
github.com/gkaramanis/a...
Inspiration:
bsky.app/profile/roni...
#RStats
#genuary
#genuary1
#creativecoding
3 months ago
0
24
3
For last week's
#TidyTuesday
, I created a map of endangered languages around the world. Built entirely in R/ggplot2: transforming spatial coordinates, identifying hotspots and composing multiple charts! Code:
github.com/gkaramanis/t...
Inspiration:
www.reddit.com/r/MapPorn/co...
#RStats
#dataviz
3 months ago
3
53
12
For this week's
#TidyTuesday
, an interactive Shiny app to explore roundabouts around the world. Select a city from the table to zoom to its roundabouts on the map, search by location, and discover which cities have the most roundabouts. Code:
github.com/gkaramanis/t...
#RStats
#dataviz
#Shiny
loading . . .
3 months ago
0
9
0
For this week’s
#TidyTuesday
, I had fun making a custom table with the reactable R package to show the car attributes in the new Qatar Cars dataset. Code:
github.com/gkaramanis/t...
#RStats
#dataviz
loading . . .
4 months ago
2
20
0
For this week’s
#TidyTuesday
, I visualized Zurich’s rising summer temperatures. In the past 11 years, avg temperatures rose above 19°C eight times, and highs surpassed 30°C every summer. The Böögg can’t predict the weather, let alone the warming Code:
github.com/gkaramanis/t...
#RStats
#dataviz
4 months ago
2
19
1
For this week’s
#TidyTuesday
, a two-panel chart showing World Bank's SPI scores for Europe & Central Asia. Most countries in the region have high SPI scores, but a few lag behind. Code:
github.com/gkaramanis/t...
#RStats
#dataviz
4 months ago
0
15
0
For this week's
#TidyTuesday
, a horizontal bar chart showing the number of exclamation marks per 1 000 words in each Sherlock Holmes book. “The Adventure of the Dying Detective” has the highest rate with 7.72 Code:
github.com/gkaramanis/t...
#RStats
#dataviz
4 months ago
0
24
0
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
5 months ago
0
13
1
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
5 months ago
1
8
2
Day 5 of
#30DayMapChallenge
, Earth Nature Index 2025 for countries/territories Code:
github.com/gkaramanis/3...
#dataviz
#spatial
#Rstats
#map
#science
#research
5 months ago
1
12
0
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
5 months ago
0
10
1
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
5 months ago
0
19
0
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
5 months ago
1
16
0
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
5 months ago
0
12
2
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
5 months ago
2
33
4
#Makingof
of this week’s
#TidyTuesday
add a skeleton here at some point
5 months ago
1
13
1
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
5 months ago
0
29
3
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
5 months ago
3
27
4
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
6 months ago
0
11
0
For this week's
#TidyTuesday
, crane migration at Lake Hornborga, Sweden, from 2002 to 2024 Code:
github.com/gkaramanis/t...
#RStats
#dataviz
6 months ago
2
21
3
For this week's
#TidyTuesday
, the top 16 chess players for August and September Code:
github.com/gkaramanis/t...
#RStats
#dataviz
6 months ago
0
20
1
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
add a skeleton here at some point
6 months ago
1
15
0
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
7 months ago
0
19
5
For this week's
#TidyTuesday
, hex grid maps showing seasonal shifts in frog observations across Australia Code:
github.com/gkaramanis/t...
#RStats
#dataviz
7 months ago
1
27
2
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
7 months ago
0
27
1
Explore Scotland’s tallest Munros and Munro tops with this week’s
#TidyTuesday
Code:
github.com/gkaramanis/t...
#RStats
#dataviz
7 months ago
0
12
2
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