Mad (Data) Scientist
Musings, useful code etc. on R and data science
- Posts
- 123 from 30 Mar 2014 to 14 Nov 2024
- Posting
- now and then
- Kind
- personal blog
- Feed
- https://matloff.wordpress.com/feed/
2024 7
2023 6
2022 10
- New Statistics Tutorial
- Just How Good Is ChatGPT in Data Science?
- Use of Differential Privacy in the US Census–All for Nothing?
- Base-R and Tidyverse Code, Side-by-Side
- A New Approach to Fairness in Machine Learning
- Valuable Webinar in Parallel Computing in R
- Base-R Is Alive and Well
- Comments on the New R OOP System, R7
- A Major Contribution to Learning R
- Greatly Revised Edition of Tidyverse Skeptic
2021 1
2020 5
2019 8
2018 9
- R > Python: a Concrete Example
- Example of Overfitting
- Manifold Visualization: Second Example
- Manifold Visualization: Polynomials to the Rescue
- What, No Parentheses?
- Update on Polynomial Regression in Lieu of Neural Nets
- Neural Networks Are Essentially Polynomial Regression
- Women in R
- Xie Yihui, R Superstar and Mensch
2017 12
- Regression Analysis — What You Should’ve Been Taught But Weren’t, and Were Taught But Shouldn’t Have Been
- cdparcoord: Parallel Coordinates Plots for Categorical Data
- Wrong on an Astronomical Scale
- Update on Our ‘revisit’ Package
- Understanding Overhead Issues in Parallel Computation
- My Presentation at useR! 2017, Etc.
- More on R and Reproducible Research
- A Partial Remedy to the Reproducibility Problem
- Online But In-Class Examinations (with an R Example)
- A Python-Like walk() Function for R
- Discrete Event Simulation in R (and, Why R Is Different)
- Any Forward Progress on p-Values?
2016 19
- Threading in R?
- Using CART: Implementation Matters
- My regtools Package Is Now on CRAN
- Manny Parzen Used R!
- StatET IDE for R
- New Release of partools Package
- Bad Coder, Bad Coder!
- Latest on the Julia Language (vs. R)
- Student-Run Conference in Data Science
- Talk on regtools and P-Values
- GTC 2016
- Even Businessweek Is Talking about P-Values
- P-values: the Continuing Saga
- Further Comments on the ASA Manifesto
- After 150 Years, the ASA Says No to p-values
- Quick Intro to NMF (the Method and the R Package)
- Innumeracy, Statistics and R
- 50% Draft of Forthcoming Book Available
- Some Comments on Donoho’s “50 Years of Data Science”
2015 24
- The Generalized Method of Moments and the gmm package
- The Method of Boosting
- OVA vs. AVA in Classification Problems, via regtools
- Back to the BLAS Issue
- Partools, Recommender Systems and More
- A New Method for Statistical Disclosure Limitation, I
- Unbalanced Data Is a Problem? No, BALANCED Data Is Worse
- More on the Heteroscedasticity Issue
- Can You Say “Heteroscedasticity” 3 Times Fast?
- New R Software/Methodology for Handling Missing Dat
- Exciting userR! 2016 Conference
- Partools 1.1.4
- partools: a Sensible R Package for Large Data Sets
- CACM Highlights R
- Heteroscedasticity in Regression — It Matters!
- Macros in R
- Discovered Two Great Web Sites Today
- Update on Snowdoop, a MapReduce Alternative
- My New Book and Other Matters
- Tutorial on High-Performance Computing in R
- GPU Tutorial, with R Interfacing
- OpenMP Tutorial, with R Interface
- Debugging Parallel Code with dbs()
- Snowdoop/partools Package Now on CRAN
2014 22
- Snowdoop/partools Update
- More Snowdoop Coming
- New Package: partools
- Snowdoop, Part II
- How About a “Snowdoop” Package?
- Count Your BLAS-ings
- Why Are We Still Teaching t-Tests?
- Good for TI, Good for Schools, Bad for Kids, Bad for Stat
- Statistics: Losing Ground to CS, Losing Image Among Students
- A Matrix Powers Package, and Some General Edifying Material on R
- New freqparcoord Example
- Code Snippet: Extracting a Subsample from a Large File
- A Handy Trick for Remote Graphics
- Rth: a Flexible Parallel Computation Package for R
- R beats Python! R beats Julia! Anyone else wanna challenge R?
- What Can Go Wrong: My Favorite Example
- Simpson’s Paradox Is Back
- Use of freqparcoord for Regression Diagnostics
- More on freqparcoord
- Adding Annotation to R Objects
- The freqparcoord Package for Multivariate Visualization
- New Blog on R, Statistics, Data Science and So On