All Posts

Complete httpx cheatsheet (light mode): eight panels covering sync one-off requests, the reusable Client, request bodies and auth, async with AsyncClient, concurrent fan-out with asyncio.gather, HTTP/2, streaming responses, and where httpx differs from requests.

httpx Cheatsheet

An overview of httpx, the modern client that does sync and async in one API, with HTTP/2, streaming, and connection reuse.
python
httpx
http
cheatsheet
Jul 10, 2026

Complete SQLAlchemy cheatsheet (light mode): eight panels covering building an engine from a connection URL, raw SQL with text(), declarative ORM models, the Session and unit of work, querying with select(), insert/update/delete, relationships and joins, and reading straight into pandas.

SQLAlchemy Cheatsheet

A quick reference for SQLAlchemy, Python’s SQL toolkit and ORM, from raw queries and connections to declarative models and relationships.
python
sqlalchemy
cheatsheet
Jul 8, 2026

Complete XGBoost cheatsheet (light mode): eight panels covering DMatrix vs the sklearn API, training a classifier and regressor, the key hyperparameters, early stopping, feature importance, saving and loading a booster, cross-validation, and predicting with SHAP-style explanations.

XGBoost Cheatsheet

XGBoost is the gradient-boosting library behind countless winning models, covered here from training and tuning to early stopping.
python
xgboost
machine-learning
cheatsheet
Jul 6, 2026

checktor hex logo: a stethoscope whose chestpiece is a green check mark

The Check Passed. The Reviewer Didn’t.

A clean automated check is not a clean submission. My own package sailed through R CMD check, then a human CRAN reviewer sent back six fixes by hand. checktor catches that list before you hit submit.
r
r-package
checktor
CRAN
package-development
code-quality
Jul 5, 2026

Complete Streamlit cheatsheet (light mode): eight panels covering text and titles, input widgets that return values, the top-to-bottom rerun model, layout with columns, sidebar, and tabs, displaying data, charts, caching with st.cache_data and session_state, and running and deploying the app.

Streamlit Cheatsheet

Streamlit turns a plain Python script into an interactive data app, covered here through widgets, layout, caching, and the rerun model.
python
streamlit
cheatsheet
Jul 4, 2026

peeky hex logo: cartoon eyes peek over an app whose corner peels back to reveal source code

peeky v0.1.0 Released

software-releases
r-package
Jul 2, 2026

Complete FastAPI cheatsheet (light mode): eight panels covering route decorators, typed path and query params, Pydantic request and response models, dependency injection, status codes and errors, async handlers and background work, automatic OpenAPI docs, and running with uvicorn.

FastAPI Cheatsheet

A quick reference for FastAPI, building typed web APIs where your function signatures define the routes, validation, and docs.
python
fastapi
cheatsheet
Jul 2, 2026

peeky hex logo: cartoon eyes peek over an app whose corner peels back to reveal source code

There Are No Secrets in Shinylive

How a browser-based Shiny app hands over its source, and how peeky walks the pipeline backward to hand it back
r
r-package
shinylive
shiny
quarto
webassembly
CRAN
Jul 2, 2026

shinyelectron hex logo

shinyelectron v0.2.0 Released - Python Apps, Five Runtime Strategies, and Multi-App Suites

software-releases
r-package
Jul 1, 2026

shinyelectron hex logo

Reintroducing shinyelectron

From an R shinylive exporter to a full Shiny-to-desktop toolkit for R and Python.
r
python
shiny
electron
desktop
webassembly
Jul 1, 2026

shinyelectron hex logo

Build Shiny Desktop Apps in CI with shiny-to-electron

One matrix workflow builds a signed .dmg, .exe, and .AppImage in parallel and hands them back as artifacts.
github-actions
ci-cd
r
python
shiny
electron
Jul 1, 2026

Complete pathlib cheatsheet (light mode): eight panels covering building paths with the slash operator, path anatomy, rewriting names and suffixes, inspecting the filesystem, globbing a tree, reading and writing in one call, creating and removing, and resolving and relating paths.

pathlib Cheatsheet

A field guide to pathlib, which treats filesystem paths as objects you join with a slash and read, glob, and reshape cleanly.
python
pathlib
cheatsheet
Jun 30, 2026

Complete Transformers cheatsheet (light mode): eight panels covering installing and loading from the Hub, pipeline() one-call inference, tokenizing text into input_ids and an attention_mask, AutoModel and AutoTokenizer loaders, batching with padding and truncation, generating text with sampling knobs, the forward pass and logits, and fine-tuning with Trainer.

Transformers Cheatsheet

The essentials of Hugging Face Transformers, from one-call pipelines to tokenization, text generation, and fine-tuning with Trainer.
python
transformers
cheatsheet
Jun 28, 2026

pycmdcheck logo

pycmdcheck v0.1.1 Released - R CMD check for Python Packages

software-releases
python-package
Jun 26, 2026

Complete pytest cheatsheet (light mode): eight panels covering writing and running your first test, reading the failure, fixtures, parametrization, testing raises and warns, markers and selection, isolating side effects, and measuring and speeding up.

pytest Cheatsheet

A quick reference for pytest, from plain assert tests to fixtures, parametrization, and markers that keep a suite fast and readable.
python
pytest
testing
cheatsheet
Jun 26, 2026
 

R&D Rcpp: A Collection of Minimal Examples for Compiled Code in R

Tiny, buildable R packages that each demonstrate exactly one way to integrate C, C++, Fortran, or a parallel backend with R
programming
cpp
r
rcpp
Jun 25, 2026
 

Calling an Rcpp Function with a mirai Backend

Distributing a packaged Rcpp kernel across mirai daemons
programming
cpp
Jun 25, 2026
 

Using OpenMP with cpp11

Parallelizing a C++ routine with OpenMP inside a cpp11 function
programming
cpp
Jun 25, 2026
 

Using OpenMP with Rcpp

Parallelizing a C++ routine with OpenMP directly inside Rcpp
programming
cpp
Jun 25, 2026

checktor hex logo: a stethoscope whose chestpiece is a green check mark

checktor v0.1.0 Released - A Package Doctor for CRAN Submission Checks

software-releases
r-package
Jun 24, 2026

Complete DuckDB cheatsheet (light mode): eight panels covering connect and query, querying files directly, SQL on a DataFrame, filter and aggregate and window, joins, moving results out, persist and export, and inspect and EXPLAIN.

DuckDB Cheatsheet

DuckDB runs SQL right on your DataFrames and files with no server, here from a first query to joins, exports, and EXPLAIN.
python
duckdb
sql
cheatsheet
Jun 24, 2026
 

macrtools v0.0.7 Released - R 4.6 Support and OpenMP Runtime Update

software-releases
r
Jun 23, 2026

Animated ompsh hex logo: a single white thread forks into four colored parallel threads that bow into a spindle and rejoin, evoking OpenMP's fork–join model, for OpenMP on macOS.

OpenMP for macOS - Upstream Sync, OpenMP 19.1.5, and Correctness CI

software-releases
r
Jun 23, 2026

Complete Pydantic cheatsheet (light mode): eight panels covering declaring a BaseModel, validating input, coercing and constraining with Field, reading a ValidationError, field and model validators, nesting and reusing models, serializing out, and config with pydantic-settings.

Pydantic Cheatsheet

Pydantic makes type hints validate your data at runtime, covered here from coercion and constraints to validators and serialization.
python
pydantic
cheatsheet
Jun 22, 2026

Complete Matplotlib cheatsheet (light mode): eight panels covering Figure and Axes, core plot types, labels and legend, scales and ticks, multi-plot layout, style and color, the artist hierarchy, and saving figures.

Matplotlib Cheatsheet

A tour of Matplotlib, from a first Figure and Axes to fully styled, multi-panel figures.
python
matplotlib
cheatsheet
Jun 20, 2026

Complete Beautiful Soup cheatsheet (light mode): eight panels covering parse, read tags and attributes, find/find_all, CSS selectors, walk the tree, pull data out, edit the tree, and serialize.

Beautiful Soup Cheatsheet

A quick reference for pulling data out of messy HTML with Beautiful Soup, parsing a document and searching it by tag and CSS selector.
python
beautifulsoup
cheatsheet
Jun 18, 2026

Complete Requests cheatsheet (light mode): eight panels covering HTTP verbs, query params, request bodies, headers and auth, sessions, errors and retries, timeouts and redirects, and reading the response.

Requests Cheatsheet

HTTP for humans, with Requests’ verbs, headers, auth, sessions, and responses at a glance.
python
requests
http
cheatsheet
Jun 16, 2026

Complete JAX cheatsheet (light mode): eight panels covering arrays and devices, the NumPy-style API, automatic differentiation, JIT compilation, vmap, random keys, control flow, and pytrees.

JAX Cheatsheet

The core of JAX in brief, NumPy that runs on GPUs and TPUs with composable transforms for autodiff, compilation, and vmap.
python
jax
cheatsheet
Jun 14, 2026

Complete Keras cheatsheet (light mode): eight panels covering build a model, the layer catalog, compile, fit/evaluate/predict, callbacks, save and load, transfer learning, and backends.

Keras Cheatsheet

The essentials of Keras, the high-level way to build and train neural networks, from stacking layers to callbacks and transfer learning.
python
keras
deep-learning
cheatsheet
Jun 12, 2026

Complete PyTorch Lightning cheatsheet (light mode): eight panels covering the LightningModule, step hooks, optimizers, the Trainer, logging, callbacks, DataModules, and save/load/export.

PyTorch Lightning Cheatsheet

The key pieces of PyTorch Lightning, which strips away training boilerplate and organizes your model, loops, and logging around a Trainer.
python
pytorch
lightning
deep-learning
cheatsheet
Jun 10, 2026

Complete PyTorch cheatsheet (light mode): eight panels covering tensor creation, shapes and ops, autograd, building models, data loading, the training loop, saving and loading, and devices and inference.

PyTorch Cheatsheet

The everyday PyTorch loop, from tensors and autograd to building models, training them, and running on a GPU.
python
pytorch
cheatsheet
Jun 8, 2026

Complete seaborn cheatsheet (light mode): eight panels covering setup and theming, relational plots, distributions, categorical plots, regression, matrix and correlation, faceting, and the objects interface.

seaborn Cheatsheet

An overview of seaborn’s statistical plots, with sensible defaults for distributions, relationships, categories, and faceting.
python
seaborn
cheatsheet
Jun 6, 2026

Complete plotnine cheatsheet (light mode): eight panels covering foundations, aesthetics, geoms, stats and position, scales, facets and coordinates, themes and labels, and save and export.

plotnine Cheatsheet

A tour of the grammar of graphics in Python, building plots one layer at a time with plotnine the way ggplot2 does in R.
python
plotnine
cheatsheet
Jun 4, 2026

Complete scikit-learn cheatsheet (light mode): eight panels covering data loading and splitting, preprocessing, the estimator interface, pipelines, validation and tuning, metrics, persistence, and inspection.

scikit-learn Cheatsheet

The scikit-learn workflow, from splitting data and building pipelines to tuning, scoring, and saving a model.
python
scikit-learn
cheatsheet
Jun 2, 2026

Complete SciPy cheatsheet (light mode): eight panels covering optimize, linalg, integrate, interpolate, stats, sparse, signal/FFT, and spatial/special.

SciPy Cheatsheet

A field guide to SciPy, the toolbox built on NumPy that spans optimization, integration, statistics, and signal processing.
python
scipy
cheatsheet
May 31, 2026

Complete NumPy cheatsheet (light mode): eight panels covering create, dtypes, index, reshape, math, reduce, broadcast, and random/linalg.

NumPy Cheatsheet

An overview of NumPy, the array that nearly every scientific Python library builds on, with vectorized math, broadcasting, and linear algebra.
python
numpy
cheatsheet
May 29, 2026

Complete narwhals cheatsheet (light mode): eight panels covering wrap/unwrap, inspect, select, transform, group/join, namespaces, lazy/IO, and portable functions.

narwhals Cheatsheet

narwhals in brief, writing dataframe code once and running it on pandas, Polars, PyArrow, and more.
python
narwhals
cheatsheet
May 27, 2026

Complete polars cheatsheet (light mode): eight panels covering read/write, inspect, select, filter, group, join, reshape, and clean.

polars Cheatsheet

A quick reference for Polars, the fast DataFrame library with a lazy engine, built around expressions for selecting, filtering, grouping, and joining.
python
polars
cheatsheet
May 25, 2026

Complete pandas cheatsheet (light mode): eight panels covering build, inspect, select, transform, clean, group, reshape, and I/O.

pandas Cheatsheet

The everyday pandas moves, from building and cleaning frames to grouping, reshaping, and reading or writing them.
python
pandas
data
cheatsheet
May 23, 2026

Complete conda/mamba cheatsheet (light mode): eight panels covering install, environments, packages, channels, sharing, lockfiles, inspection, and cleanup.

conda / mamba Cheatsheet

The everyday conda and mamba commands, for creating environments, managing packages, and sharing your setup.
python
conda
mamba
cheatsheet
May 21, 2026

Complete pip cheatsheet (light mode): eight panels covering installing, sources, editable installs, inspecting, requirements, downloading, indexes, and the cache.

pip Cheatsheet

The pip commands you reach for, from simple installs to editable projects, requirements files, and the cache.
python
pip
cheatsheet
May 19, 2026

Complete uv cheatsheet (light mode): eight panels covering install, Python versions, projects, running code, virtual environments, the pip interface, tools, and publishing.

uv Cheatsheet

uv at a glance, the all-in-one, fast Python project manager for versions, environments, dependencies, and publishing.
python
uv
cheatsheet
May 17, 2026

iPhone home screen of U.S. Citizenship Test Prep showing entry tiles for Study, Civics, Reading, Writing, Interview, and Progress.

Preparing for the U.S. Citizenship Test on iPhone and iPad

An offline study app for the USCIS naturalization test, in 12 languages.
ios
citizenship
education
May 13, 2026

Bringing arf, a modern R console, to Homebrew

A community-requested R console, now one brew command away on macOS and Linux
r
homebrew
arf
rust
May 12, 2026

A CSS Paint Job for CRAN

Modernizing cran.r-project.org with a drop-in stylesheet, no HTML changes, plus a side-by-side viewer for evaluating the result.
r
cran
css
web-design
May 11, 2026
 

Closing the Footnote Loop

A follow-up on portable R, attribution, and what came after
open source
rstats
posit
May 10, 2026
Screenshot of a GitHub pull request adding portable, relocatable macOS and Windows R builds to a Posit-maintained repository, showing a Files changed table that includes a CLAUDE.md and an Existing art for reference section linking to two external repositories.

Extraction with a Footnote

On being sniped by an LLM pointed at my open source work
open source
rstats
ai
posit
May 3, 2026

iPhone screenshot showing the Pyodios Python console with a prompt, an expression, and its result.

Python in Your Pocket

Python REPL, editor, packages, and Jupyter notebooks on iPhone and iPad.
python
webassembly
ios
pyodide
May 1, 2026

Flow diagram showing RTOOLS45_HOME at the top flowing into three R components: Makeconf for compiler flags, Rcmd_environ for R CMD PATH, and Rprofile.windows for interactive PATH. All three converge into package compilation working.

Portable R for Windows + Rtools

Source package compilation on Windows, no installer required.
r
open-source
windows
Apr 7, 2026

Timeline showing milestones: 2009 R-devel PR#14007, 2013 Simon Urbanek maps baked-in paths, 2017 COVAIL ships R 3.4 in Electron, 2019 Posit Community surveys the state of the art, 2023 selkamand publishes R 4.2.3 portable, 2026 portable-r-macos launches with R 4.3 through 4.5 signed and notarized.

Portable R for macOS

Run R from any directory without installing it. Signed, notarized, and ready to go.
r
macos
devops
portable
Apr 2, 2026

Two rows contrasting traditional and portable R installation. The traditional row shows six steps: download exe, run installer, click wizard, admin prompt, registry writes, restart IDE. The portable row shows two steps: curl download and extract, then run Rscript.exe.

Portable R for Windows

R without the installer. Extract a zip, run Rscript.exe, install packages.
r
windows
devops
portable
Apr 1, 2026

Four panels showing table features: caption syntax and location options, cross-reference labels and at-references, column width controls, and Bootstrap classes like striped, hover, and bordered with visual examples.

Quarto Tables Cheatsheet

A visual guide to Quarto’s table syntaxes, alignment, captions, cross-references, and code cell options.
quarto
tables
cheatsheet
Mar 31, 2026

Layout cheatsheet preview.

Quarto Cheatsheets: A Visual Reference Series

Visual cheatsheets covering major Quarto features, with downloadable SVG diagrams in light and dark mode.
quarto
cheatsheet
reference
Mar 29, 2026

Diagram showing expanded and collapsed callout states with chevron indicators, two methods for setting custom titles, a titleless callout, and icon on versus icon off comparison.

Quarto Callouts Cheatsheet

A visual guide to Quarto’s five callout types, appearance styles, and cross-references.
quarto
callouts
cheatsheet
Mar 28, 2026

Complete Quarto Figures cheatsheet (light mode).

Quarto Figures & Cross-References Cheatsheet

A visual guide to Quarto’s image syntax, subfigures, code cell figure options, and cross-reference system.
quarto
figures
cheatsheet
Mar 28, 2026

Complete Quarto Layout cheatsheet (light mode).

Quarto Layout Cheatsheet

A visual guide to Quarto’s column classes, margin content, and layout options.
quarto
layout
cheatsheet
Mar 28, 2026

Architecture diagram showing the macOS host with a staging directory connected to a Windows 11 VM through the Parallels shared folder bridge. The macOS filesystem is exposed via the UNC path backslash-backslash-Mac-backslash-Home on the Windows side.

Testing macOS Builds in a Windows VM with Parallels

Using shared folders to move binaries, license files, and test artifacts between macOS and a Windows ARM64 VM.
macos
windows
parallels
testing
cross-platform
Mar 23, 2026

Diagram showing the data pipeline from pipermail archives through per-list repositories to the aggregated data repository, with outputs to the web archive and R/Python analysis workflows.

Preserving 29 Years of R Community Knowledge

A searchable archive and analysis-ready dataset of 631,000+ messages from 32 R mailing lists.
r
data
open-source
community
Mar 20, 2026
 

Merge PDFs from the Command Line

No GUI, no uploads, no problem. Just Ghostscript and a one-liner.
terminal
pdf
ghostscript
Mar 19, 2026

Android phone screenshot showing the webRoid R console with syntax-colored output.

R in Your Pocket on Android

webRoid brings R to phones and tablets with WebAssembly.
r
webassembly
android
webr
Mar 16, 2026
 

S7 Replacement Methods and the R CMD Check Crash

Your code is fine. R CMD check just can’t handle S7 replacement ops yet.
r
s7
packages
Feb 8, 2026

iPhone screenshot showing the webRios R console with syntax-colored output.

R in Your Pocket

Bringing R to iPhone and iPad with WebAssembly.
r
webassembly
ios
webr
Jan 23, 2026

iPhone Simulator screenshot showing a minimal test app running native R with output from 1+1, sum(1:100), c(1,2,3,4,5), and mean(1:10).

Compiling R for iOS

Cross-compiling R 4.5.2 for iPhone, and why dynamic symbol loading is the real problem.
r
ios
cross-compilation
Jan 17, 2026

Decision flowchart showing the vignettes target checking for the existence of vignettes/precompile.R and branching to either precompilation or standard vignette building.

A Makefile for R Package Development

Standardize your workflow with make targets for documentation, testing, and more.
r
packages
make
tooling
Jan 15, 2026

The Case of the Missing Vignettes: A Dot-ful Tale

How a single dot silently drops your R package documentation
R
packages
CI/CD
vignettes
Dec 26, 2025
 

RcppEnsmallen v0.2.22.1.2 Released - Upstream Armadillo Changes

software-releases
r-package
Sep 10, 2025

shinyelectron hex logo

shinyelectron v0.1.0 Released - Shiny Apps as Standalone Desktop Applications

software-releases
r-package
Sep 4, 2025

Animated ompsh hex logo: a single white thread forks into four colored parallel threads that bow into a spindle and rejoin, evoking OpenMP's fork–join model, for OpenMP on macOS.

Lightweight Alternative to Setup, Run Diagnostics, and Uninstall OpenMP on macOS using Apple’s Xcode Toolchain

r
macos
openmp
Aug 26, 2025

Stop Bloating Your Quarto Repository with Generated Figure Files

Managing Quarto Figure Storage with Git Submodules
quarto
git
git-submodules
github-actions
version-control
Aug 20, 2025
 

OpenMP Support Comes to {macrtools}

New openmp_*() functions bring automatic parallel computing setup to macOS R users
r
macos
openmp
hpc
parallel computing
Aug 9, 2025

Bringing Posit’s Air formatter for R to Homebrew

Step by step guide to creating a Homebrew formula for a Rust project
r
homebrew
posit
air
rust
Jul 2, 2025

Screenshot of Typst's ASCII table tool showing the full character grid. The dollar sign ($) is highlighted with a blue border in the table, displaying its hex code 0x24 and decimal value 36. The table shows various ASCII characters organized in rows, including control characters (NUL, SOH, STX, etc.) and printable characters (letters, numbers, and symbols like !,

Hexadecimal Escape Sequences in Typst Templates for Quarto Documents

A Guide to Including Special Characters Like Dollar Signs in Typst Templates
Jun 19, 2025
 

Using R to Install Python Packages in a GitHub Actions Workflow

In a post-{reticulate} 1.41 CI World
programming
r
python
github-actions
May 28, 2025

shinyelectron hex logo

Shiny Apps as Desktop Apps

Turn an R Shiny app into an offline desktop application with Electron and shinylive, no server and no R install required.
r
shiny
electron
webassembly
desktop
May 19, 2025

uiucthemes v0.3.3 Released - Maintenance for CRAN

software-releases
r
Apr 27, 2025
 

R Compiler Tools for Rcpp on macOS

programming
cpp
Apr 24, 2025

Shiny without Boundaries

One App, Multiple Destinations
talk
r
shiny
devops
webassembly
wasm
shinylive
Apr 19, 2025

Rethinking Shiny Containerization: The shinydocker Experiment

An experimental R package for containerizing Shiny apps with minimal fuss
r
python
docker
shiny
containers
Apr 3, 2025
 

Simplifying File-based Examples with @examplesTempdir in R Packages

A roxygen2 extension for automating temporary directory handling in examples
r
r-package
roxygen2
CRAN
Apr 2, 2025

Introducing dockitect: Making Docker Feel More Native to R

Docker + R = dockitect
Mar 30, 2025

Introducing multideploy: Streamline file deployments across multiple repositories

Challenging the Challenge of Managing Many Repositories
r
github
devops
Mar 21, 2025
 

From Experiment to Action: R Package CRAN Submission GitHub Action

A follow-up to our experimental CRAN submission workflow
r
github-actions
cran
automation
Mar 16, 2025
 

Julia Comes to Google Colab

Native Julia Support with GPU and TPU Access Now Available
julia
google
colaboratory
data-science
Mar 9, 2025
 

First Steps toward Automating CRAN Submissions with GitHub Actions

Making CRAN submissions more like PyPI publishing
r
github-actions
cran
r&d
automation
Mar 3, 2025
 

Automating Library Updates with GitHub Actions

Update C++ Library Dependencies in R Packages
github
github-actions
r
r-package
c++
gitlab
automation
bandicoot
Feb 26, 2025
 

RcppEnsmallen v0.2.22.1.1 Released - Maintenance and CMA-ES Restart Mechanisms

software-releases
r-package
Dec 3, 2024
 

Posit’s New Brand YML Specification for Themes Makes Its Debut!

Shiny for Python leads the way with the first implementation of this powerful brand system
shiny-python
design-systems
web
Nov 10, 2024
 

Next Generation Data Science Education with WebAssembly Technologies

education
python
webassembly
quarto
Nov 5, 2024
 

Handling CRAN Requirements for Web API R Packages

programming
r
Nov 2, 2024
 

Scraping Dynamic Websites with R and Chromote

video
r
Oct 29, 2024
 

Introducing Quartize: Streamline Your Quarto Blog Workflow in VS Code

vsx
vs-code
positron-ide
Oct 27, 2024
 

HTML Table to DataFrame Converter

tools
data-science
web-development
Oct 22, 2024
 

Converting FontAwesome CSS to Lua with R: A Unicode Adventure

quarto
lua
r
Oct 19, 2024
 

Shiny Assistant: A Game-Changer for Shiny Development

shinylive
shiny
r
python
Oct 10, 2024
 

Creating Desktop Shortcuts for Box, Dropbox, Google Drive, and iCloud on macOS using symlinks

mac
cloud
storage
symlink
terminal
Oct 8, 2024
 

surreal v0.0.1 Released

software-releases
r-package
Sep 12, 2024
 

ucimlrepo v0.0.2 Released - Graceful Speedy Data

software-releases
r-package
Sep 2, 2024
 

ucimlrepo v0.0.1 Released

software-releases
r-package
Jul 27, 2024
 

quarto-webr v0.4.2 Released - A Change Is Gonna Come!

software-releases
quarto
webr
Jun 24, 2024
 

Dynamic Interactions with WebAssembly in R and Python

webassembly
r
webr
python
pyodide
quarto
talks
May 16, 2024
 

quarto-webr v0.4.1 Released - Vivid Montage!

software-releases
quarto
webr
Mar 25, 2024
 

RcppEnsmallen v0.2.21.1.1 Released - Numerical Fix for L-BFGS!

software-releases
r-package
Feb 17, 2024
 

quarto-webr v0.4.0 Released - Ball of Yarn!

software-releases
quarto
webr
Feb 5, 2024
 

RcppEnsmallen v0.2.21.0.1 Released - Callback tweaks!

software-releases
r-package
Nov 28, 2023
 

quarto-webr v0.3.9 Released - Zoom-Zoom!

software-releases
quarto
webr
Nov 16, 2023
 

quarto-webr v0.3.8 Released - New Coat of Paint!

software-releases
quarto
webr
Nov 13, 2023
 

quarto-webr v0.3.7 Released - Mutex On, Mutex Off!

software-releases
quarto
webr
Oct 16, 2023
 

RcppEnsmallen v0.2.20.0.1 Released - New Active CMAES Implementation and Fixes!

software-releases
r-package
Oct 3, 2023
 

quarto-webr v0.3.6 Released - Ready, Set, Run!

software-releases
quarto
webr
Sep 24, 2023
 

quarto-webr v0.3.5 Released - Rocking the Monaco!

software-releases
quarto
webr
Sep 17, 2023
 

quarto-webr v0.3.2 Released - Rocking the Monaco!

software-releases
quarto
webr
Sep 13, 2023
 

quarto-webr v0.3.1 Released - Maintenance Release: Upgrade to webR v0.2.1!

software-releases
quarto
webr
Sep 12, 2023
 

quarto-webr v0.3.0 Released - Across the webR-Verse to v0.2.0!

software-releases
r
Aug 17, 2023
 

quarto-webr v0.2.1 Released - Demo, Demo, Demo!

software-releases
r
Aug 17, 2023
 

slcm v0.1.0 Released

software-releases
r
Aug 12, 2023
 

quarto-webr v0.2.0 Released - Accessibility

software-releases
r
May 1, 2023
 

R Compiler Tools for Rcpp on macOS before R 4.5.0

programming
cpp
Apr 21, 2023
 

quarto-webr v0.1.0 Released - Options Galore

software-releases
r
Apr 11, 2023
 

quarto-webr v0.0.4 Released - Custom Code Cell Name

software-releases
quarto
webr
Mar 30, 2023
 

quarto-webr v0.0.3 Released - Escape Escape

software-releases
quarto
webr
Mar 19, 2023
 

quarto-webr v0.1.0 Released - Democratizing Data Science

software-releases
r
r-packages
development
Mar 12, 2023
 

quarto-webr v0.0.2 Released - Plot and Service Worker Fixes

software-releases
quarto
webr
Mar 12, 2023
 

quarto-webr v0.0.1 Released - Democratizing Data Science

software-releases
quarto
webr
Mar 12, 2023
 

macrtools - v0.0.1 Released: Automatic macOS R Compiled Toolchain Installation from within R

software-releases
r
Mar 7, 2023
 

Disable Cisco Anyconnect Notice on macOS

programming
macos
Jan 10, 2023
 

bibtex v0.5.0 Released

software-releases
r
Sep 25, 2022
 

Italy and a trek with COVID-19

real-life
Jul 25, 2022
 

Married

real-life
May 11, 2022
 

R Compiler Tools for Rcpp on macOS before R 4.3.0

programming
cpp
Apr 22, 2022
 

RcppEnsmallen v0.2.19.0.1 Released - New Optimizers Yogi, DemonSGD, DemonAdam, AdaBelief, and AdaSqrt!

software-releases
r
Apr 11, 2022
 

Microsoft 365, Two Factor Authentication, and Sending an Email from R

programming
r
Feb 25, 2022
 

ohoegdm v0.1.0 Released: Ordinal Higher-Order Exploratory General Diagnostic Model for Polytomous Data

software-releases
r
Feb 24, 2022
 

cIRT v1.3.2 Released: Maintenance Release

software-releases
r
Feb 21, 2022
 

RcppEnsmallen v0.2.18.2.1 Released - Fix Epoch Timing

software-releases
r
Feb 18, 2022
 

Template for Auto-Deploying Quarto-Book on GitHub with GitHub Pages

programming
Feb 3, 2022

Our Lovely, Lovely Car Ride

real-life
Jan 24, 2022
 

Book Recommendations

academia
Dec 31, 2021
 

RcppEnsmallen v0.2.18.1.1 Released - CMAES Infinity Loop Fix and Testing Improvements!

software-releases
r
Nov 20, 2021
 

RcppEnsmallen v0.2.18.0.1 Released - Gradient Stability Techniques and Bugfixes!

software-releases
r
Oct 22, 2021
 

sitmo v2.0.2 Released - Bag of Bugfixes and Modernizations

software-releases
r
Oct 13, 2021

uiucthemes v0.3.2 Released - Maintenance and a pkgdown website (GitHub-only)

software-releases
r
Aug 19, 2021
 

edmdata v1.2.0 Released: New Oracle Strategy Sets and Probability Assessment Data

software-releases
r
Jul 24, 2021
 

searcher v0.0.6 Released - Search Ecosia and Rseek!

software-releases
r
Jul 24, 2021
 

A Professor Is Born

real-life
Jul 8, 2021
 

RcppEnsmallen v0.2.17.0.1 Released - Support for Multiobjective Optimizers!

software-releases
r
Jul 6, 2021
 

R Compiler Tools for Rcpp on macOS before R 4.2.0

programming
cpp
May 18, 2021
 

RcppEnsmallen v0.2.16.1.1 Released - Better Unit Tests and Bug Fixes!

software-releases
r
Mar 5, 2021
 

edmdata v1.1.0 Released: New Low Attribute Oracle Q and Documentation Fixes

software-releases
r
Jan 14, 2021
 

RcppEnsmallen v0.2.15.0.1 Released - New Callback: Optimization Summary Report

software-releases
r
Nov 4, 2020
 

msos v1.2.0 Released: Unbalanced data bug fix and a pkgdown site!

software-releases
r
Nov 1, 2020
 

RcppEnsmallen v0.2.14.2.1 Released - New NSGA2 optimizer and Bug Fixes!

software-releases
r
Sep 10, 2020
 

Automating Dependency Updates with GitHub Actions: The Ensmallen Case

github
github-actions
ensmallen
r
r-package
c++
Sep 6, 2020
 

edmdata v1.0.0 Released: Pre-made data sets for Diagnostic Modeling!

software-releases
r
Aug 17, 2020
 

Custom Box Sync Directory Name and Location on macOS

programming
macos
Aug 15, 2020
 

RcppEnsmallen v0.2.13.0.1 Released - Early Stopping with Lambdas and Update Deployment Automation

software-releases
r
Jul 24, 2020

uiucthemes v0.3.1 Released - Upstream compatibility fixes and maintenance

software-releases
r
Jul 24, 2020
 

Dynamically Retriving Latest Pandoc from GitHub and Deploying on the Illinois Campus Cluster

programming
linux
May 4, 2020
 

Sending an Email from R with Blastula to Groups of Students

programming
r
Apr 25, 2020
 

R Compiler Tools for Rcpp on macOS before R 4.1.0

programming
cpp
Apr 24, 2020
 

Uninstalling the R development toolchain on macOS

programming
cpp
Apr 24, 2020
 

RcppEnsmallen v0.2.12.1.1 Released - QoL and compatibility improvements

software-releases
r
Apr 24, 2020
 

Addressing uuid_t error when compiling with Rcpp 1.0.4 on macOS

programming
cpp
Mar 28, 2020
 

edina v0.1.1 Released: Estimate an Exploratory Deterministic Input, Noisy ‘and’ Gate Model!

software-releases
r
Mar 26, 2020
 

cIRT v1.3.1 Released: More Modernization and Maintenance Release

software-releases
r
Mar 24, 2020
 

errum v0.0.3 Released: Model an Exploratory Reduced Reparameterized Unified Model!

software-releases
r
Mar 21, 2020
 

Enabling libssh2 for git2r and usethis

programming
r
Mar 17, 2020
 

errorist v0.1.0 Released: Improved automatic warning searches

software-releases
r
Feb 24, 2020
 

RcppEnsmallen v0.2.11.3.1 Released - Memory leak fix and other goodies!

software-releases
r
Feb 20, 2020
 

searcher v0.0.5 Released - Search Twitter and Search Experience Customizations!

software-releases
r
Feb 6, 2020
 

RcppEnsmallen v0.2.11.1.1 Released - New Optimizers and Documentation Improvements!

software-releases
r
Jan 14, 2020
 

msos v1.1.1 Released: House keeping and CRAN Task View Status for Teaching Statistics!

software-releases
r
Jan 9, 2020
 

Calling an Rcpp Function with a doParallel Backend

Packaging a C++ function for use inside a foreach parallel region
programming
cpp
Nov 12, 2019
 

Independent Parallel RNG Streams with dqrng

Reproducible parallel random number generation with per-thread substreams
programming
cpp
Nov 11, 2019
 

Advice for Students Looking for a Job in Data Science

real-life
Nov 1, 2019
 

uiucthemes v0.3.0 Released - Illinois-themed Metropolis HTML and Beamer Templates

software-releases
r
r-packages
development
Oct 2, 2019
 

RcppEnsmallen v0.2.10.3.1 Released - Backwards compatibility and vignette example!

software-releases
r
Sep 30, 2019
 

Overriding RStudio’s Startup Hook inside Rprofile

programming
r
Sep 14, 2019
 

RcppEnsmallen v0.2.10.0.1 Released - Callbacks added and more types!

software-releases
r
Sep 7, 2019
 

Fully Transitioning to blogdown and hugo finite theme

programming
r
Sep 5, 2019
 

Installing Hugo on Dreamhost’s Ubuntu 18.04LTS version

programming
linux
Sep 5, 2019
 

RcppEnsmallen v0.1.16.0.1 Released - New LBestPSO Optimizer and Objective Value Control

software-releases
r
Aug 29, 2019
 

searcher v0.0.4 Released - Search RStudio Community and Read about Search Patterns!

software-releases
r
Jul 5, 2019
 

rvw 0.6.0: First release

programming
r
Jun 29, 2019
 

Sharing C++ Functions Between R Packages

Packaging header-only C++ functions for use from another package
programming
cpp
Jun 19, 2019
 

RcppEnsmallen v0.1.15.0.1 Released - New QHAdam and QHSGD Optimizers

software-releases
r
May 20, 2019
 

R Compiler Tools for Rcpp on macOS before R 4.0.0

programming
cpp
May 14, 2019
 

RcppEnsmallen v0.1.14.4.1 Released - More Bug Fixes

software-releases
r
May 13, 2019
 

R macOS toolchain Evolution

programming
cpp
May 5, 2019
 

Removing the old R Custom gfortran 4.8.2 Binary

programming
cpp
May 5, 2019
 

Keeping Up to Date with R Developments

Staying Fresh in the Age of Data Science
programming
r
Apr 23, 2019
 

Improving the Secured Computer-based Testing Environment for R on CentOS 7 using Rprofile and Renviron

programming
r
Mar 19, 2019
 

RcppEnsmallen v0.1.14.1.1 Released - Added Optimizer DE and Bug Fixes

software-releases
r
Mar 10, 2019
 

Exposing a BankAccount C++ Class with Rcpp Modules

Surfacing a C++ class into R with Rcpp Modules
programming
cpp
Feb 17, 2019
 

cIRT v1.3.0 Released: Modernization and Maintenance Release

software-releases
r
Jan 25, 2019
 

RcppEnsmallen v0.1.13.0.1 Released - Added Optimizer SPSA and Improved AugLagrangian Optimizer

software-releases
r
Jan 21, 2019
 

Resources for Teaching at the University of Illinois at Urbana-Champaign (UIUC)

academia
Jan 10, 2019
 

sitmo v2.0.1 Released

software-releases
r
Jan 7, 2019
 

Using OpenMP with a C Routine and Rcpp

Parallelizing a C routine with OpenMP and surfacing it through Rcpp
programming
cpp
Jan 5, 2019
 

RcppEnsmallen v0.1.12.0.1 Released - Added FTML, SWATS, PADAM, Eve Optimizers

software-releases
r
Jan 4, 2019
 

Calling a Fortran Routine from Rcpp

Bridging Fortran and C++ with iso_c_binding
programming
cpp
Jan 1, 2019
 

Combining a C Routine with Rcpp

Calling a hand-written C routine from an Rcpp function
programming
cpp
Jan 1, 2019
 

Benefits of Using a Sparse Matrix

programming
r
Dec 29, 2018
 

Saving and Reading R Objects

An Investigation into R’s Serialization Formats
programming
r
Dec 29, 2018
 

Exposing a Student C++ Class with Rcpp Modules

A second Rcpp Modules example with a custom Student class
programming
cpp
Dec 6, 2018
 

RcppEnsmallen v0.1.11.1.1 Released - Added WNGrad Optimizer

software-releases
r
Nov 30, 2018
 

Using Google BigQuery to Obtain Reddit Comment Phrase Counts

programming
sql
Nov 13, 2018
 

RcppEnsmallen v0.1.10.0.1 Released - Perform Numerical Optimizations with Armadillo in R!

software-releases
r
Oct 30, 2018

uiucthemes v0.2.1 Released: Market Information Lab @ UIUC Beamer Theme Added

software-releases
r
Oct 5, 2018
 

R and RStudio in a Secured Environment on CentOS 7

programming
r
Jul 21, 2018
 

cetcolor v0.2.0 Released: CET Perceptually Uniform Color Maps with Support for Colour Blind Users and Short Names

software-releases
r
Jul 10, 2018
 

searcher v0.0.3 Released

software-releases
r
Jul 4, 2018
 

Hiding tempdir() and tempfile() Statements in R Documentation

programming
r
Jul 1, 2018
 

Ideas for Dates at UIUC

real-life
Jul 1, 2018
 

sitmo v2.0.0 Released

software-releases
r
Jul 1, 2018
 

Removing Large Files and Sensitive Information using BFG Repo Cleaner

programming
unix
May 28, 2018
 

Extracting and Comparing MD5 and SHA256 Hashes

programming
unix
May 28, 2018
 

Common Operations with RcppArmadillo

programming
cpp
May 27, 2018
 

R Compiler Tools for Rcpp on macOS before R 3.6.0

programming
cpp
May 27, 2018
 

R Compiler Tools for Rcpp on macOS before 3.5.0

programming
cpp
r
rcpp
compilers
os x
Mar 22, 2018
 

Design hiccups of the tidyverse with rlang

programming
r
Feb 13, 2018
 

Woes of the rlang enabled tidyverse

programming
r
Feb 12, 2018
 

errorist v0.0.1 Released

software-releases
r
Jan 30, 2018
 

Gift Policy

academia
Jan 27, 2018
 

Letters of Recommendation Policy

academia
Jan 26, 2018

uiucthemes v0.2.0 Released

software-releases
r
Jan 22, 2018
 

Remapping C’s printf() to R’s Rprintf()

Capturing C console output in R through R’s C API
programming
cpp
Jan 18, 2018
 

searcher v0.0.2 Released

software-releases
r
Jan 14, 2018

Selecting an alternative compiler for R package testing on Travis-CI

programming
r
Aug 22, 2017
 

Multiple Linear Regression Proofs

statistics
Jul 11, 2017
 

Making a Uniform Pseudo Random Number Generator (PRNG) with sitmo

programming
r
Apr 30, 2017
 

Registration of Entry Points in Compiled Code Loaded into R

programming
r
Apr 28, 2017
 

sitmo v1.1.0 Released

software-releases
r
Apr 28, 2017
 

msos v1.1.0 Released

software-releases
r
Apr 28, 2017
 

visualize v4.3.0 Released

software-releases
r
Apr 27, 2017
 

cIRT v1.2.1 Released: Maintenance Release

software-releases
r
Apr 27, 2017
 

An Opinionated Tale of Why You Should Replace <- with =

programming
r
Feb 28, 2017
 

A modulefile Approach to Compiling R on a Cluster

programming
r
Feb 15, 2017
 

Onboarding Script for a Research Group

academia
Feb 10, 2017
 

Updating a homebrew formula

programming
macos
Jan 1, 2017
 

To Rcpp Attributes and Beyond From inline

programming
rcpp
Dec 18, 2016
 

Unofficial Rcpp API Documentation

programming
cpp
Oct 21, 2016
 

Mass Adding and Removing Users on Ubuntu

programming
unix
Sep 21, 2016

Installing RTools for Compiled Code via Rcpp

programming
cpp
Jul 25, 2016
 

Porting R’s table function to C++

programming
cpp
May 5, 2016
 

cIRT v1.2.0 Released: New Vignettes and Package News Updates!

software-releases
r
Apr 14, 2016
 

NumPy Arrays to R Array Objects

Mar 31, 2016

OpenMP in R on OS X

programming
Mar 19, 2016
 

Working with R on a Cluster

programming
r
Mar 14, 2016
 

Selecting a C++ Standard for an R Package

Choosing the C++ standard a package compiles against with CXX_STD
programming
cpp
Mar 3, 2016
 

Set R’s Seed in Rcpp (Sequential Case)

programming
cpp
Feb 29, 2016
 

R Data Packages in External Data Repositories using the Additional_repositories field

Jan 17, 2016
 

Creating an R Data Package

Jan 17, 2016

Histogram of CRAN R Package Sizes in MB

Size and Limitations of Packages on CRAN

Jan 17, 2016
 

Differences in Primitive Data Types between OS X and Windows

programming
cpp
Jan 9, 2016
 

R Compiler Tools for Rcpp on OS X before R 3.4.0

programming
cpp
Jan 9, 2016
 

cIRT v1.1.0 Released: Additional Choice Information Added

software-releases
r
Dec 30, 2015
 

cIRT v1.0.0 Released: Choice Item Response Theory

software-releases
r
Dec 8, 2015
 

Custom as and wrap Converters for a C++ Type

Teaching Rcpp to move a user-defined struct between R and C++
programming
cpp
Nov 7, 2015
 

Sum of Squares Manipulations

statistics
Aug 19, 2015
 

Embedding Compiled Code in Subdirectories of src/

Using a Makevars file to compile sources from src/ subdirectories
programming
cpp
Mar 10, 2015
 

Embedding Multiple Code Files in src/ with Headers

Separating compiled code into individual units using header files
programming
cpp
Mar 10, 2015
 

Using the ff package to load the kaggle criteo data set into R

programming
r
Dec 2, 2014
 

Reproducible Research, R, R Studio, and You!

programming
r
Oct 27, 2014
 

Talkin’ Bout A Big Data Revolution

programming
r
Sep 29, 2014
 

Setting up RStudio to work with RcppArmadillo

programming
cpp
May 13, 2014
 

Rcpp, RcppArmadillo and OS X Mavericks “-lgfortran” and “-lquadmath” error

programming
cpp
May 5, 2014
 

Tukey Studentized Range and You!

statistics
Apr 8, 2014
 

The Trace of the Kronecker Product

statistics
Dec 30, 2013
 

Did you know? UIUC Edition

real-life
Dec 28, 2013
 

M-Answers Multiple Choice Probabilities

statistics
Dec 24, 2013
 

Counting how many variables are in a SAS Dataset

sas
Dec 24, 2013
 

Writing messages to SAS Log in Color

programming
sas
Dec 24, 2013
 

Errors Thrown By SAS Macro Comments

sas
Dec 24, 2013
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