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Stephanie May

@mizmay.com

geographic technologist Opinions mine but we can share πŸ‘©πŸΌβ€πŸ’»πŸ€¦πŸΌβ€β™€οΈ πŸŒŽπŸ’• #location #geo #ux #seattle #urbanism #maplibre #mapbox #esri #leaflet #python #rstats

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Latest posts by Stephanie May @mizmay.com

β€œLearn by invasion” should imply we know where the past places we invaded are… I’m skeptical 🧐

β€œLearn by adding geography back into curriculum” model of geography might work though, who knows?

04.03.2026 16:33 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I wish gen pop understood why anarchy is a political philosophy

01.03.2026 19:27 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

It really should mean the opposite of what it means

01.03.2026 19:03 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I am beyond disappointed in the tech industry. That THIS is the line in the sand, and one newish titan sees the value in holding it.

But here we are.

28.02.2026 18:44 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

oooh cyprus detected, gorgeous

28.02.2026 14:07 πŸ‘ 55 πŸ” 14 πŸ’¬ 3 πŸ“Œ 2
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These are some examples of #tidyplots built-in color schemes 🌈

Feel free to create your own!

#rstats #dataviz #phd

28.02.2026 15:24 πŸ‘ 21 πŸ” 2 πŸ’¬ 1 πŸ“Œ 0
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We live in a magical time for #dataviz. This map is just a static html page served on GitHub pages 🀯

It uses the incredible {pmtiles} #rstats package by @kylewalker.bsky.social to quickly filter through ~21M rows of data hosted on Cloudflare

vehicletrends.github.io/hhi-map/

25.02.2026 14:17 πŸ‘ 326 πŸ” 35 πŸ’¬ 10 πŸ“Œ 3
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for summarising values over groups in plots, I think that generally ridgeplots are superior to box plots and violin plots...
#rstats #statistics #dataviz

27.02.2026 15:17 πŸ‘ 49 πŸ” 10 πŸ’¬ 6 πŸ“Œ 1

Wakes up to war with Iran… @bsky.app is losing its mind.

… sneaks off to read more about the #rstats pipe-wars πŸͺˆ

28.02.2026 18:05 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Oh so good!

I’ve been using, β€œsure, sounds interesting, so I’ll add it to my pro bono queue?”

27.02.2026 17:24 πŸ‘ 3 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

< immediately clicks on #rstats > πŸ‘€

… only to find the same delightful collection of nerdery, beauty and insights as always, plus some memes for .00001% of people πŸ’—

27.02.2026 17:21 πŸ‘ 14 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0

This is when racial injustice first punched through to my generation. Wow after all we’ve seen since it still brings rage tears to my eye.

27.02.2026 17:01 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

In a moment of over-intellectualization of this endless frozen scream in which we are stuck…

Talking to a European colleague recently I found myself citing the irony that:

27.02.2026 16:55 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

😝 even still, that’s so many tacos and so much beer πŸ˜…πŸ»

27.02.2026 16:47 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
The "I feel bad for you", "I don't think about you at all" meme from Mad Men, the first panel has this additional text: "%>%", the second "|>"

The "I feel bad for you", "I don't think about you at all" meme from Mad Men, the first panel has this additional text: "%>%", the second "|>"

Sorry, not sorry #rstats

23.02.2026 12:37 πŸ‘ 48 πŸ” 6 πŸ’¬ 2 πŸ“Œ 1
XKCD 3207 β€” Zero Declination

Of course we don't know when to stop.

[Since the magnetic poles are moving], the (pointless) question is: in what year did the most people live in places where the compass direction was off by less than 5 degrees?

And the answer: the year was 2000

awhogue.github.io/zero-declina...

23.02.2026 02:19 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

AND THEN... if we really didn't know when to stop, we could take up this challenge (from the title text):

The zero line in WMM2025 passes through a lot of population centers; I wonder what year the largest share of the population lived in a zone of less than 5Β° of declination...

23.02.2026 02:19 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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bad map projection zero declination 2x hosted at ImgBB Image bad map projection zero declination 2x hosted on ImgBB

Then, if we were bonkers, we could distort coastlines to reorient them based on their magnetic orientation toward "the north pole", which, on a cylindrical map projection, is the line at the top. ibb.co/XkzmKSPQ

23.02.2026 02:19 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
https://geomag.colorado.edu/images/Historical/magnetic_lines_2010.gif

https://geomag.colorado.edu/images/Historical/magnetic_lines_2010.gif

And we'd have to model the variability of the Earth's magnetic field in space, aka patterns of magnetic declenation, which according to geophysics are caused by chaotic forces at the earth's core... science.nasa.gov/earth/earth-...

23.02.2026 02:19 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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North magnetic pole - Wikipedia

Well ok, we'd need to pick a *time*, since the drift has been accelerating, particularly since 1980 en.wikipedia.org/wiki/North_m...

23.02.2026 02:19 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Whoa deep cut @xkcd.com... [takes deep breath] so what's going on here in one post: cylindrical projections *like Mercator* represent the poles as lines instead of points, but what if we wanted to represent the magnetic poles of the Earth, which are shifted slightly in space (and time)? ...

23.02.2026 02:03 πŸ‘ 4 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0
Alaska Petrofuture--a 1964 Union 76 gas station map with 66m sea level rise

Alaska Petrofuture--a 1964 Union 76 gas station map with 66m sea level rise

The Alaska #Petrofuture map has been challenging. Getting all those little islands to align with modern elevation data has been a complete PITA.

But worth it!

#Alaska #climateChange #seaLevelRise #maps

13.02.2026 17:01 πŸ‘ 11 πŸ” 6 πŸ’¬ 0 πŸ“Œ 0
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Maps remade An FT Magazine special feature on how to map a changing world

You should definitely consider picking up a Weekend FT today, because it's the magazine MAPS special. Radical cartography, maps that changed the world, an FT reader competition that almost started a war, they don't love you like i love you, MAPS! www.ft.com/content/efab...

14.02.2026 07:46 πŸ‘ 149 πŸ” 24 πŸ’¬ 6 πŸ“Œ 6
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Spurious Correlations Correlation is not causation: thousands of charts of real data showing actual correlations between ridiculous variables.

πŸ°πŸ•³οΈ:
β†’ Spurious Correlations: tylervigen.com/spurious-correlations
β†’ A BMJ paper people didn't understand was a joke: pmc.ncbi.nlm.nih.gov/articles/PMC1697765/
β†’ Friday the 13th: International Evidence: papers.ssrn.com/sol3/papers.cfm?abstract_id=234828

#DataScience #DataLiteracy #FridayThe13th

14.02.2026 02:10 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Q: Why celebrate just once a year?

A: Actually, 2026 has THREE Friday the 13ths (February, March, and November), and humans across cultures have additional fears β€” Italy fears Friday the 17th, Hispanic countries fear Tuesday the 13th, and in China the number 4. Lots of opportunities to celebrate!

14.02.2026 02:10 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

FAQ:

Q: Why celebrate Data Science Awareness Day?

A: Because superstitious beliefs provide unparalleled life lessons in confirmation bias, conflating correlation with causation, authority bias, and of course the modifiable areal unit problem (MAUP) whereby we artificially constrain our inquiry.

14.02.2026 02:10 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Today is Friday the 13th, which I herby declare is Data Science Awareness Day!

We love to repeat a story that reinforces our own nonsense; let's never stop.

But as we do this, let's promote awareness of how data science methods help us counter cognitive biases and arrive at better conclusions.

14.02.2026 02:10 πŸ‘ 6 πŸ” 0 πŸ’¬ 1 πŸ“Œ 1
Map of areas of responsibility, or AORs, the administrative subdivisions of the United States used by ICE.

Map of areas of responsibility, or AORs, the administrative subdivisions of the United States used by ICE.

TIL that "Area of Responsibility" is a military term for territories assigned to different combatant commanders. #ICE #ImmigrationEnforcement #AreasOfResponsibility #AOR #USMap #GeographicRegions #MilitaryTerminology #BorderPolicy #ImmigrationPolicy #SocialJustice

11.02.2026 22:50 πŸ‘ 0 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

I have never been accused of β€œsmashing it”. Agree with Claude, wrong idiom for the North American ear.

I think I have seen β€œcrushing it”, but not lately 😝.

08.02.2026 19:10 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

It’s not about #Epstein, it’s about patriarchy. And we are all implicated: in bumbling β€œinvestigations”, conspiracy theories drowning out facts, and insensitivity to the humanity of women. If it’s like every other battle for gender equality it will fizzle when Trump is gone.

08.02.2026 18:47 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0