Carl Colglazier
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carl.cx
Carl Colglazier
@carl.cx
420 followers 310 following 390 posts
Learning more about the world using stats and texts.

Computational social scientist studying decentralized social networks.

PhD Candidate at Northwestern with @communitydata.science (ABD!)

I post about: land use, Chicago, and #Rstats

🤓🏳️‍🌈🦞
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carl.cx
Subversively using secret Slack commands.
Slackbot :wave: Hi there, we don’t provide support for this font, so you may run into display issues. You can switch to an officially supported font in Appearance preferences.
September 16, 2025 at 7:56 PM
carl.cx
John Snow's Cholera Map
Original map made by John Snow in 1854. Cholera cases are highlighted in black, showing the clusters of cholera cases (indicated by stacked rectangles) in the London epidemic of 1854. The map was created in order to better understand the pattern of cholera spread in the 1854 Broad Street cholera outbreak, which Snow would use as an example of how cholera spread via the fecal-oral route through water systems as opposed to the miasma theory of disease spread. The contaminated pump is located at the intersection of Broad Street and Cambridge Street (now Lexington Street), running into Little Windmill Street. The map marks an important part of the development of epidemiology as a field, and of disease mapping as a whole. [text from Wikipedia]
July 21, 2025 at 11:40 PM
carl.cx
Charles Joseph Minard's map of Napoleon's Russian campaign
Charles Minard's 1869 chart showing the number of men in Napoleon’s 1812 Russian campaign army, their movements, as well as the temperature they encountered on the return path.
July 21, 2025 at 11:39 PM
carl.cx
Made a little dashboard in #Quarto and #Shiny to track my job application process.

github.com/CarlColglazi...
Dashboard titled “Job Search Dashboard” displays three charts on the left and an application form on the right. Top-left chart: step line plot with Date (January–May) on the x-axis, Applications (0–100) on the y-axis, cumulative count reaching 100 by mid-May. Top-center chart: heatmap with weekdays (Mon–Sun) on the y-axis, weekly intervals on the x-axis, color legend “Applications” ranging from 0 (white) to 10 (dark blue). Bottom-left chart: Sankey diagram with a source node “Applications (100)” flowing to “Screener (57)”, “Interview (27)”, “Offered (11)”, “No Response (22)”, and “Rejected (21)”. Right panel: text inputs for Company Name, Position, Link; a Status dropdown set to “Applied”; an Application Date field showing “2025-07-14”; and a “Submit Application” button.
July 14, 2025 at 3:13 PM
carl.cx
I added a small section on my website homepage that displays a recent post from my Bluesky account.

It's powered by a small program I wrote in #golang.

github.com/CarlColglazi...
A screenshot of a part of my website with a heading "A Sample (N = 1) from my Bluesky Timeline" displaying a post "Is it time to finally learn vim keybindings?" with a timestamp and a link to view the post.
July 6, 2025 at 3:05 AM
carl.cx
Top down image of a desk with keyboard, laptop, monitor, glass of water, headphones, notebook, and glasses.
July 1, 2025 at 7:04 PM
carl.cx
GitHub is down and gaslighting me
Screenshot of GitHub.com status page showing operational status for various services. All services are marked "Normal" with green checkmarks except "Copilot," which is marked "Degraded" with a yellow warning icon. Services listed include Git Operations, API Requests, Pull Requests, Packages, Codespaces, Webhooks, Issues, Actions, and Pages.
June 17, 2025 at 7:44 PM
carl.cx
This is how your email finds me
Vienna Beef poster for Chicago's Hot Dog, depicting a giant Chicago-style hot dog assembly on Navy Pier with the skyline in the background.
June 17, 2025 at 2:34 PM
carl.cx
R package management vs. Python package management
Split paths meme where both options are bad
June 15, 2025 at 8:05 PM
carl.cx
Squidward sadly watching Spongebob and Patrick through a window
June 13, 2025 at 6:25 PM
carl.cx
#Quarto supports running SQL chunks directly through {DBI}!

But does anyone know how to tell #Positron/#VSCode to "run cell" as with the Python/R chunks? #duckdb
Screenshot of a Quarto notebook showing two code chunks. The first is a SQL chunk labeled wiki-counts, which connects to a database using con, selects source_file and the count of rows per source file from the wikis table, groups by source_file, and orders by count in descending order. The second is an R chunk labeled with a timestamp (20250609-093831) that pipes the resulting wiki_count data frame into ggplot, mapping the log of count to the x-axis and displaying a histogram with geom_histogram().
June 9, 2025 at 4:32 PM
carl.cx
We can make Mike Tauchman an all-star as a little treat
A side-by-side comparison of American League and National League All-Star player picks by position. The American League includes Guerrero (First Base), Holliday (Second Base), Bregman (Third Base), Witt (Shortstop), Judge, Mullins, and Bellinger (Outfield), Raleigh (Catcher), and Tauchman (Designated Hitter). The National League includes Freeman (First Base), Donovan (Second Base), Muncy (Third Base), Lindor (Shortstop), Wood, Tucker, and Crow-Armstrong (Outfield), Kelly (Catcher), and Ohtani (Designated Hitter). Team logos appear next to each player's name.
June 4, 2025 at 6:32 PM
carl.cx
All that's old is new again.

YouTube comments on a piece produced by David Cope's (RIP) "Experiments in Musical Intelligence".

www.youtube.com/watch?v=CgG1...
If a real person composed this, would you buy it? To me, it is a meaningless patchwork of beautiful phrases. It is an insult to Beethoven, to say nothing of other renowned composers, to suggest that this even has an aesthetic. My heart and mind are blown. I never imagined I'd see a machine that could compose good music. And the kind of music that I LIKE is a huge bonus. This is so inspirational. I can't even begin to understand how you'd setup a neural net to learn to program music on its own. I'm a computer programmer, but still I am in awe. I listened to this piece with biased ears. If I was not aware about The origin of this piece I would have appreciated it whole heartedly. My human bias is not willing to accept that a music once associated with maestros only can be created by computer also. How are we going to idolize a computer the same way as Beethoven?
June 4, 2025 at 5:01 PM
carl.cx
Don’t speak to me or my little free son ever again
The Glessner House in Chicago with a little free library modeled after it
May 30, 2025 at 5:28 PM
carl.cx
Would love to see this website do Richard Prince discourse
A photograph of “Untitled (cowboy)” by Richard Prince — itself a rephotograph — on display at the Art Institute of Chicago
May 29, 2025 at 3:31 PM
carl.cx
Still there
Picture of The Picasso in Chicago with Sears Tower in the background
May 29, 2025 at 3:05 PM
carl.cx
New Jersey, I didn’t know your game
The Bishop House, an Italian Villa style mansion A mixed use development at Rutgers University with a statue of a knight in the foreground A statue of William the Silent Gate for Rutgers University
May 20, 2025 at 9:17 PM
carl.cx
Look at all these funky boys you can write
Image of a keyboard with unicode keys when pressing "option" Image of a keyboard with unicode keys when pressing "option" and "shift"
May 16, 2025 at 4:02 PM
carl.cx
Screenshot of my iPhone Home Screen
May 14, 2025 at 12:25 AM
carl.cx
Trying something. Nice how you can just get public atproto data without authenticating. #Obsidian #ObsidianMD
May 13, 2025 at 9:39 PM
carl.cx
good kid, m.A.A.d. city by Kendrick Lamar
May 12, 2025 at 12:42 PM
carl.cx
It's PDS II
An image of the "PDS II" technology card from the game Twilight Imperium, 4th Edition
May 8, 2025 at 3:28 PM
carl.cx
And here's the after
May 8, 2025 at 12:20 AM
carl.cx
Came up with this little trick to stop that little white strip from showing up when you scroll in #Quarto

#title-block-header:before {
content: "";
width: 100vw;
height: 100px;
margin-top: -100px;
background-color: $dark-bg; // your color
}

(video shows the before)
May 8, 2025 at 12:19 AM
carl.cx
Fun to see Qwen3's stream of data if full of sequences like "hmm maybe this, oh wait not that's wrong"

Relatable?
A terminal showing the output of a large language model: Looking up Reveal.js documentation, I see that fragments are controlled via the `data-fragment` attribute, which specifies the order. The `data-fragment-index` can be used to set the index. However, there's no built-in attribute to make fragments visible from the start. So, the solution might involve using JavaScript to trigger the fragment reveal when the slide is shown. For example, using the `slidechanged` event to check if the current slide has fragments and then reveal them. Another approach is to use the `fragment` class and CSS to make them visible. But then the fragments would be visible by default, which might not be desired. However, if the user wants all fragments on a slide to be visible from the start, that could work. Wait, but the user might want some fragments to be visible and others not. So maybe using a combination of CSS and data attributes. For example, adding a class to the fragment that makes it visible, and then using JavaScript to trigger the reveal. Alternatively, using the `data-fragment-visible` attribute. Wait, perhaps the user is referring to the `data-fragment-visible` attribute, which I'm not sure about. Let me think again. In Reveal.js, when you use the `fragment` class, the elements are hidden by default. To make them visible, you can use the `data-fragment` attribute with a number, and then the reveal.js will show them in order. But if you want them to be visible from the start, you can use the `data-fragment-visible` attribute, but I don't think that's a standard attribute. Wait, maybe the user is referring to the `data-fragment-step` attribute. No, that's not it.
May 6, 2025 at 12:04 AM