James Balamuta
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coatless.bsky.social
James Balamuta
@coatless.bsky.social
1.1K followers 16 following 340 posts
omnipresent explorer of the unknown, fashionably caffeinated informatics phd, amorous cavalier. design, build, analyze. #rstats on #macos + #webr and #python with #pyodide
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coatless.bsky.social
Thanks for the MWE! So, in simulator iPad (A16) and on a 2020 iPad Pro, I wasn't able to trigger the error with that code snippet. The memory usage is around 74.3 MB; so, plenty of space left. I'll try a few more things tomorrow. Sorry for the hiccups; but, I _greatly_ appreciate the stress test.
iPad (A16) simulator showing a successful completion of the code snippet. x<-1:10;b0=0;b1=0.1 means = exp(b0+b1*x) n.sims=10 cat("Hello world\n") est.b0=est.b1=numeric(n.sims) ci.b0=ci.b1=matrix(nrow=n.sims, ncol=2) for(i in 1:n.sims){ print(i) y=rpois(10, means) fit<-glm(y~x, family=poisson()) est.b0[i]=coef(fit)[1] est.b1[i]=coef(fit)[2] ci.b0[i,]=confint(fit)[1,] ci.b1[i,]=confint(fit)[2,] }
January 28, 2026 at 6:18 AM
coatless.bsky.social
That's not good at all. Mmm, out of pure curiosity, year/make/model of the iPad? Any background apps open? Would you be okay sharing the code for me to check?
GLM with mtcars via a gaussian family in webrios on iphone 17 pro max.
January 28, 2026 at 12:49 AM
coatless.bsky.social
1. Agreed; yes.

2. In console, disable word wrap by going to "..." -> Word Wrap.

3. Editor mode has "run selection" via either highlight area or pressing the "orange" button. Green button runs the file.

4. Possible; need to figure out where to stash that setting.
Disable Word Wrap by going to the "..." in the upper right corner. This allows for long lines within the Console. Highlight selection and select "Run Selection" under the pop up menu. Or press the "Orange" button in the bottom to "Run Selection". The Green button runs the entire file (convenience when the upper Play button also does something similar.
January 27, 2026 at 8:23 PM
coatless.bsky.social
For now, that's correct. You'll have a timeout just like if you were in the webR REPL (see below). Though, we may be able to do some interesting things with a local redirect layer.

docs.r-wasm.org/webr/latest/...

github.com/r-wasm/webr/...
Demo of quantmod failing to retrieve stock symbols within the webR REPL.
January 27, 2026 at 5:40 PM
coatless.bsky.social
Noted. The Editor Tab has a bit more features with code complete; but, it's not 100% autocomplete. On the roadmap.
Editor tab of webRios with "print(" appearing with function signature.
January 27, 2026 at 3:36 PM
coatless.bsky.social
webRios is live. #rstats on your iPhone and iPad.

I showed native R compilation on #iOS last week. Shipping it is another story (thanks, GPL). This version uses #webR 's #WebAssembly build instead. Different tradeoffs, but this one clears App Review.

apps.apple.com/us/app/webri...
Promotional image for webRios showing the app icon and an iPhone displaying the R console. The console shows example R commands with syntax highlighting: basic arithmetic (1 + 1), a print statement saying 'Hello from iOS!', a warning message in orange reading 'Uh-oh, I'm in the Apple-verse?', an error message in red with the HAL 9000 quote 'I'm sorry, Dave. I'm afraid I can't do that.', and a plot command.
January 27, 2026 at 2:42 AM
coatless.bsky.social
So, #rstats does work natively on #iOS with plots and all.

Genuine question though: has the GPL vs App Store situation ever been resolved or are we stuck in "cool demo forever" territory?
January 17, 2026 at 8:40 AM
coatless.bsky.social
After booking, the host directed me to a completely separate website to upload my government ID again. The listing mentioned 'verification required' but I assumed Airbnb's own verification process covered that.
Screenshot of a third-party website with a dark interface titled 'Let's get your booking verified.' The page shows two steps: 'Your Details' marked as complete, and 'ID Check' still requiring action. The site displays the host's logo at the bottom but has no Airbnb branding.
January 17, 2026 at 6:59 AM
coatless.bsky.social
Booked a place in Dallas. Before confirming, Airbnb required me to verify my identity. I did and got an email saying 'Your identity is now verified.' Great, done. Or so I thought.
Email from Airbnb with the subject 'Your identity is now verified.' The email shows a profile photo with an 'Identity verified' badge and states 'Good news, your identity is now verified. You're all set to book on Airbnb. We've also added a badge to your profile to show that you've completed this important step.'
January 17, 2026 at 6:59 AM
coatless.bsky.social
{surreal} 0.0.2: now featuring the "oh that would be convenient" update

1. Load images directly with surreal_image()
2. Explore everything in a Shiny app with surreal_app()

Sometimes the sequel has better quality-of-life features.

#rstats #rshiny #dataviz
The Surreal Shiny app in dark mode displaying a Jack-o-Lantern demo. The source panel shows a pumpkin shape rendered as a scatter plot, while the residuals panel reveals the same jack-o-lantern face with triangular eyes and jagged mouth, reconstructed from 5,395 points. Screenshot of the Surreal Shiny app with "Custom Text" selected as the source. The left panel shows "Hello R World!" as plain text, while the right panel displays the same text reconstructed from 3,328 regression residual points. Screenshot of the Surreal Shiny app showing a side-by-side comparison. On the left, the orange Reddit logo with Snoo mascot. On the right, a scatter plot of 8,160 points that perfectly recreates the Reddit logo through regression residuals. Hexagonal logo for the surreal R package. Dark blue background with "SURREAL" in white block letters at the bottom, where some letters have an outlined style. Above the text, white and light blue circles of varying sizes scatter upward, dense near the bottom and sparse at the top, evoking a residual plot rising from the package name.
January 11, 2026 at 6:58 AM
coatless.bsky.social
{webrarian} walked so {pyrarian} could... also walk? Ported #webr 's 4-panel editor to Pyodide. Already loading pandas and plotting with matplotlib in the browser. The librarians are going multilingual.

#pyodide #python #wasm
January 1, 2026 at 7:00 AM
coatless.bsky.social
{toggle} does one thing: adds a button to hide code output in #quarto docs.

Took two versions to do that one thing well. Now it works everywhere... tabsets, callouts, nested containers, you name it.

📚 quarto.thecoatlessprofessor.com/toggle/
🐙 github.com/coatless-qua...
Screenshot of the Toggle extension documentation website showing the Quick Start page. The left sidebar displays the Toggle logo and navigation menu with sections for Get Started, Features, Demos, and Reference. The main content shows an interactive toggle button demo, explains the ▼ (visible) and ▶ (hidden) chevron indicators, and includes R code examples with a visible "Output" toggle button on the code block. The page demonstrates how the toggle button appears when hovering over code cells. Toggle extension logo: A blue hexagonal badge featuring a stylized code block with a toggle button in the upper right corner, and a line chart output below it. The word "toggle" appears at the bottom in white lowercase text.
December 29, 2025 at 6:48 AM
coatless.bsky.social
{livelink} walked so {webrarian} could run. Mini browser-based #rstats environments powered by #webR and its 4-panel editor. YAML config, build, preview. Done.

R package coming soon. #pyodide folks, stay tuned.
December 28, 2025 at 8:33 AM
coatless.bsky.social
Shiny for R: GPL-3 → MIT ✨

Your dashboards are now legally chill. Deploy without consulting three lawyers and a ouija board first.

#rstats #rshiny
Screenshot of a GitHub pull request #4339 titled "chore(license): Change license from GPL-3 to MIT." The PR shows a purple "Merged" badge indicating it was merged by user cpsievert 13 minutes ago, with 5 commits from the branch "migrate-gpl-to-mit-license" into main. The description by contributor karangattu explains the PR closes issue #4208 and updates the Shiny package licensing from GPL-3 to MIT License.
December 17, 2025 at 12:11 AM
coatless.bsky.social
Released a #Quarto extension for collapsible content blocks.

Why? The {details} are inside.

📚 quarto.thecoatlessprofessor.com/details/
💻 github.com/coatless-qua...
Screenshot of the details extension quickstart documentation showing three methods to create collapsible blocks in Quarto: using the summary attribute, using a heading, and using a summary div. Each method shows the code syntax and its rendered output as expandable disclosure widgets. Hexagonal sticker logo for the details Quarto extension. Orange background with a stylized illustration of three accordion-style collapsible content panels in cream and brown, with the word "details" in white text at the bottom.
November 29, 2025 at 7:21 PM
coatless.bsky.social
{ripper} dissects your #Quarto documents, extracting code blocks by language and leaving executable scripts behind.

Supports #rstats, #python, #julia, and 13 other victims.

For those who never stopped celebrating Halloween.

📚 quarto.thecoatlessprofessor.com/ripper/
💻 github.com/coatless-qua...
Ripper extension hex logo with Halloween-inspired design. Black hexagonal badge featuring a white .qmd document on the left with red blood splatter effect, and multiple file extension labels on the right (.R, .py, .jl, .js, .lua, .sh, .ts, .md) resembling torn paper. The word 'RIPPER' appears in large red distressed lettering at the bottom, with additional blood drip effects throughout. Screenshot demonstrating the ripper Quarto extension workflow. Shows the ripper logo (a dark house silhouette with red text), documentation page for Default Configuration, example R and Python code blocks in the rendered document, and two code editor windows displaying the generated script files (qripper-default-config.R and qripper-default-config.py) with extracted code. A red arrow connects the 'Script files' section to the generated output files.
November 22, 2025 at 10:57 PM
coatless.bsky.social
Nothing makes you feel vintage like your license getting moved to the retirement home directory. GNU put GPL 2.0 in /old-licenses/ causing #rstats packages to throw URL warnings. Somewhere a CRAN maintainer is rubbing their hands together, ready to trigger 847 email requests...
Screenshot of a code diff showing line 10 being updated. The removed line (red) shows a GPL 2.0 license URL pointing to gnu.org/licenses/gpl-2.0.html, while the added line (green) shows the same URL updated to point to gnu.org/licenses/old-licenses/gpl-2.0.html, indicating the license documentation has been moved to an 'old-licenses' directory.
September 26, 2025 at 6:12 PM
coatless.bsky.social
macOS 26 Tahoe + R 4.5.1: Keeps #rstats moving along on #macOS. Upgrade confidently, just remember to update Xcode CLI afterwards if using stan & compiled code.
A screenshot showing R 4.5.1 working under RStudio 2025.9.0.387 on macOS Tahoe (26.0.0) with a call to compiled code requiring gfortran through RcppArmadillo. A screenshot showing R 4.5.1 working under Positron 2025.9.0 (Universal) on macOS Tahoe (26.0.0) with a call to compiled code requiring gfortran through RcppArmadillo.
September 16, 2025 at 12:39 AM
coatless.bsky.social
R that travels light on #Linux: Portable R AppImages.

Now working everywhere: your Ubuntu, friend's Fedora, cousin's Arch setup (btw)

No sudo, no tears, just base R science ✨

(package support coming soon!)

#RStats #AppImage #DataScience
Terminal session showing the download and execution of an R AppImage from GitHub releases. The commands show wget downloading the ARM64 AppImage built on Ubuntu 24.04, making it executable with chmod +x, and then launching it to run R statistical analysis including a linear regression model with income vs age data, demonstrating the workflow from GitHub release to running statistical computations. VS Code showing the successful completion of an R AppImage build process. The terminal displays the build summary indicating a 76MB minimal R 4.5.1 AppImage for ARM64 architecture with package installation disabled (immutable). The output shows usage examples and confirms the build completed successfully, with R actually running at the bottom showing the standard R startup message and executing system environment commands, demonstrating the fully functional portable R installation. VS Code terminal showing R 4.5.1 running from an AppImage on ARM64 architecture. The file explorer shows the typical AppImage directory structure with usr/bin, usr/lib, and usr/share folders, demonstrating the self-contained portable nature of the R installation.
September 15, 2025 at 6:37 PM
coatless.bsky.social
Linux support 🐧

Same #rshiny → desktop workflow on #Fedora 42 aarch64:

shinyelectron::export() → #rshinylive → #AppImage → portable #Linux app

Plot twist: no more "go buy yourself a real computer" moments - you get zero #rstats dependencies too! The condescending Unix users have won this round.
September 10, 2025 at 5:49 AM
coatless.bsky.social
Core Shiny Application (Shinylive Layer): 61.9 MB

This represents the base Shiny application code and dependencies

Platform-Specific Packaging Overhead (ARM64):

Windows: 300.1 MB
macOS: 264.1 MB
Linux: 304.9 MB

Total Application Size by Platform:

Windows: 362 MB
macOS: 326.4 MB
Linux: 366.8 MB
Windows 11 File Explorer displaying the Programs folder with properties dialogs open for "My-App-Title," showing the application size as 362 MB (379,900,896 bytes) in the Local Programs directory, demonstrating the Windows build footprint. macOS Finder window showing the contents of an "electron-app" folder with various build artifacts from running {shinyelectron} to create a standalone R Shiny App, highlighting the "converted-app" executable file sized at 326.4 MB, representing the packaged macOS application bundle. Screenshot of RStudio IDE on Ubuntu 24.04 showing R code in the editor and a system file browser dialog displaying the "linux-arm64-unpacked" folder containing 76 items with a total size of 366.8 MB, representing the Linux build of the standalone R Shiny application created using {shinyelectron} with shinylive. macOS Finder window displaying the contents of the "converted-app" folder with the "shinylive-app" subfolder selected and its info panel open, showing the Shiny application components (app.json, index.html, shinylive folder, and shinylive-sw.js) with a total size of 61.8 MB (244 items). This is the core Shinylive layer footprint shared across applications.
September 9, 2025 at 9:25 PM
coatless.bsky.social
By request: Same #rshiny app → native #electron desktop app workflow now on #Windows11

shinyelectron::export() → #rshinylive → installer → app.exe

[Worth the Parallels license to record this from my Mac]

Still no #rstats dependencies for end users. Living the cross-platform life (virtually).
September 7, 2025 at 5:57 AM
coatless.bsky.social
Prototyping #rshiny apps to native #electron desktop apps:

shinyelectron::export() → #rshinylive conversion → .dmg → Native Mac app

Zero #rstats dependencies for end users! Early days but promising 👀
September 4, 2025 at 7:35 AM
coatless.bsky.social
I think that covers SciServer Essentials v1.0. There are 4 different versions. The latest has software at #rstats 4.2.2 and #Python 3.9 inside of #JupyterLab.

The R+RStudio image has R 4.2.1 and RStudio Build 2022.07.2.

Maybe raise a ticket to update the underlying suites?
Screenshot of JupyterLab launcher interface showing the main dashboard with two sections: "Notebook" and "Console". Each section displays kernel options for Python 3.9 (py39) and R 4.2.2 with their respective icons. The left sidebar contains a file browser showing "Storage" and "Temporary" folders, both modified "a minute ago", with a search filter box at the top. The interface includes typical JupyterLab navigation elements and is running on sciserver.org as shown in the browser tab. Screenshot of RStudio Server interface showing an "About RStudio Server" dialog box. The dialog displays version 2022.07.2 Build 576 with copyright information from 2009-2022 RStudio, PBC. Behind the dialog, the RStudio interface is visible with the console panel showing R version 4.2.1 startup information, a terminal tab, and various menu options (File, Edit, Code, View, Plots, Session, Build, Debug, Profile, Tools, Help). The right side shows a Tutorial panel and file browser. The browser tab indicates this is running on sciserver.org.
August 28, 2025 at 4:45 PM
coatless.bsky.social
TIL about SciServer.org: Free scientific computing platform with persistent accounts (#NSF-funded). All the power of #JupyterHub without the setup hassle. Focus on building great teaching + research notebooks, not infrastructure! #OpenScience
Screenshot of SciServer homepage showing a blue header with the SciServer logo and "Collaborative data-driven science" tagline. The main section features a colorful nebula background with white text reading "The Science Platform" and "A collaborative environment for server-side analysis with extremely large datasets." Below are six feature boxes with icons for About, Hosted Datasets, Compute Images, Science Domains, Education, and Help, each containing brief descriptions. The page includes a "Login to SciServer" button and NSF funding acknowledgment at the bottom. Screenshot of SciServer's Education page with the same blue header design. The main content shows "Education" as the page title, followed by explanatory text about using SciServer to teach data science. The page includes sections on "How to Teach with SciServer" with detailed instructions, and an "Examples" section featuring astronomy course examples from University of St Andrews and University of North Carolina Asheville, with links to GitHub repositories containing sample notebooks.
August 28, 2025 at 3:08 PM