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MathAI / ML

’15’20’25
Posts
109 from 20 Jun 2013 to 17 Oct 2026
Posting
now and then (2 in the last year)
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personal blog
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https://www.sumsar.net/blog/index.xml

2026 2

  1. Estimate your BAC, now 100% in the browser
  2. One-shot prompting a game: Guess the emoji!

2025 1

  1. Bötty - A friendly ChatGPT UI hack

2024 11

  1. A simple interactive advent calendar in HTML/CSS/JS
  2. A template for creating card sorting games in R
  3. The Climate Impact Sorting Challenge
  4. A Bayesian Plackett-Luce model in Stan applied to pinball championship data
  5. CopenhagenR, the 2024 spring season
  6. Public Pinball Machines per Capita: A new global indicator
  7. Modeling my pinball scores
  8. Why pandas feels clunky when coming from R
  9. Baking the cake dataset cake
  10. The source of the cake dataset
  11. The one good use case of Bubble Sort is beer tasting

2023 14

  1. Rasmus’s maximum meeting length formula
  2. Get a Git repo where your team can stow their throwaway data science code!
  3. A Makefile recipe for Python data pipelines
  4. officialcocktails.com - An AI-generated cocktails site
  5. IBA cocktails in csv and json format: But why?!!
  6. The International Bartenders Association (IBA) cocktails in csv and json format
  7. Call ChatGPT (or really any other API) from R
  8. P-value bowling
  9. Three strategies to tackle Big Data in R and Python
  10. Putting the top 100 R packages into a GIF
  11. Data from the file drawer: Remembering case-sensitive and case-insensitive words
  12. A simple maze generator for Bitsy
  13. Setting up plain markdown blogging in Hugo
  14. Can AI save us from the perils of P-values? at Bayes@Lund 2023

2020 1

  1. The Tidyverse in a Table

2019 1

  1. Image Dithering in R

2018 2

  1. Yet another visualization of the Bayesian Beta-Binomial model
  2. My introductory course on Bayesian statistics

2017 5

  1. A Stan case study, sort of: The probability my son will be stung by a bumblebee
  2. Video Introduction to Bayesian Data Analysis, Part 3: How to do Bayes?
  3. Video Introduction to Bayesian Data Analysis, Part 2: Why use Bayes?
  4. Video Introduction to Bayesian Data Analysis, Part 1: What is Bayes?
  5. Beginners Exercise: Bayesian Computation with Stan and Farmer Jöns

2016 6

  1. A Fun Gastronomical Dataset: What’s on the Menu?
  2. How I made some Pokémon Business Cards
  3. Bayesian Bootstrap: The Movie + Some Highlights from UseR! 2016
  4. How to Cut Your Planks with R
  5. bayesboot: An R package for doing the Bayesian bootstrap
  6. Posterior Update of Bayes@Lund 2016

2015 14

  1. bayes.js: A Small Library for Doing MCMC in the Browser
  2. Eight Christmas Gift Ideas for the Statistically Interested
  3. A Bayesian Model to Calculate Whether My Wife is Pregnant or Not
  4. The Map of Romantic Kissing with Leaflet and R
  5. Basic MCMC and Bayesian statistics in… BASIC!
  6. Tiny Data, Approximate Bayesian Computation and the Socks of Karl Broman: The Movie
  7. Easy Bayesian Bootstrap in R
  8. Hygge at UseR! 2015, Aalborg
  9. Big Data and Chess Follow-up: Predictive Piece Values Over the Course of a Game
  10. Big Data and Chess: What are the Predictive Point Values of Chess Pieces?
  11. The Non-parametric Bootstrap as a Bayesian Model
  12. A Speed Comparison Between Flexible Linear Regression Alternatives in R
  13. Wrapping up Bayes@Lund 2015
  14. Probable Points and Credible Intervals, Part 2: Decision Theory

2014 23

  1. Peter Norvig’s Spell Checker in Two Lines of Base R
  2. How to Summarize a 2D Posterior Using a Highest Density Ellipse
  3. Tidbits from the Books that Defined S (and R)
  4. Probable Points and Credible Intervals, Part 1: Graphical Summaries
  5. Tiny Data, Approximate Bayesian Computation and the Socks of Karl Broman
  6. Bayesian First Aid: Poisson Test
  7. Subjective Rhythmization at ICMPC 2014 in Seoul
  8. drinkR: Estimate your Blood Alcohol Concentration using R and Shiny.
  9. Chillin’ at UseR! 2014
  10. beepr (former pingr) is on CRAN. It’s easier than ever to make R go beep!
  11. Bayesian First Aid: Test of Proportions
  12. The Most Comprehensive Review of Comic Books Teaching Statistics
  13. Jeffreys’ Substitution Posterior for the Median: A Nice Trick to Non-parametrically Estimate the Median
  14. Bayesian First Aid: Pearson Correlation Test
  15. A Hack to Create Matrices in R, Matlab style
  16. Oldies but Goldies: Statistical Graphics Books
  17. Bayesian First Aid: Two Sample t-test
  18. A Significantly Improved Significance Test. Not!
  19. Bayesian Mugs Galore!
  20. Bayesian First Aid: One Sample and Paired Samples t-test
  21. Announcing pingr: The R Package that Sounds as it is Called
  22. Bayesian First Aid: Binomial Test
  23. Bayesian First Aid

2013 28

  1. An Animation of the Construction of a Confidence Interval
  2. The Mascots of Bayesian Statistics
  3. Three Syntax Additions that Would Make R Even More Awesome
  4. An Animation of the t Distribution as a Mixture of Normals
  5. Shaping up Laplace Approximation using Importance Sampling
  6. Easy Laplace Approximation of Bayesian Models in R
  7. DIY Kruschke Style Diagrams
  8. How Do You Write Your Model Definitions?
  9. A Bayesian Twist on Tukey’s Flogs
  10. Going to Plot Some Proportions? Why not Flog ’em First?
  11. RPPW 2013 was Groovy!
  12. SPSS looked great! 20 years ago…
  13. Bayesian Estimation of Correlation - Now Robust!
  14. More Bayesian Football Models
  15. The Bayesian Counterpart of Pearson’s Correlation Test
  16. Modeling Match Results in La Liga Using a Hierarchical Bayesian Poisson Model: Part three.
  17. CogSci 2013 in Berlin was Hot!
  18. Modeling Match Results in La Liga Using a Hierarchical Bayesian Poisson Model: Part two.
  19. Modeling Match Results in La Liga Using a Hierarchical Bayesian Poisson Model: Part one.
  20. useR 2013 was a blast!
  21. Three Ways to Run Bayesian Models in R
  22. Technical report: Construction of a Low Latency Tapping Board.
  23. Subjective Difficulty of Tapping to a Slow Beat
  24. Robert MacDougall’s “The Structure of Simple Rhythm forms”, 1903.
  25. Eye Tapping
  26. ChildFreq: a Tool to Explore Word Frequencies in Child Language.
  27. Bayesian Modeling of Anscombe’s Quartet
  28. Bayesian estimation supersedes the t-test - Online

Undated 1

  1. Guess the emoji! here