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2022

An example demonstrating the problem with “net treatment effects”original ↗
6 May 2022
A short note on the startsWith functionoriginal ↗
5 May 2022
What is principal stratification in causal inference?original ↗
30 Apr 2022
Fieller’s confidence sets for ratio of two meansoriginal ↗
23 Apr 2022
Asymptotic normality of sample quantilesoriginal ↗
20 Apr 2022
What is CUPED (Controlled-experiment Using Pre-Experiment Data)?original ↗
4 Apr 2022
Count metrics and ratio metricsoriginal ↗
2 Apr 2022
What is a horizon chart?original ↗
31 Mar 2022
What is a stable distribution?original ↗
19 Mar 2022
Remove all but one object from the environmentoriginal ↗
17 Mar 2022
Something to note when using the merge function in Roriginal ↗
11 Mar 2022
Changing the column names for model.matrix outputoriginal ↗
20 Feb 2022
How to include all levels of a factor variable in a model matrix in Roriginal ↗
17 Feb 2022
Switching testthat editions and how it affects testing functions and formulasoriginal ↗
12 Feb 2022
Comparing the Bradley Terry model to betting oddsoriginal ↗
5 Feb 2022
What is the Bradley-Terry model?original ↗
1 Feb 2022
The product of doubly stochastic matrices is doubly stochasticoriginal ↗
24 Jan 2022
Playing Wordle in Roriginal ↗
18 Jan 2022
What do we mean by triggering in A/B testing?original ↗
7 Jan 2022
Mathematical odds and endsoriginal ↗
5 Jan 2022
A stats joke to start the new yearoriginal ↗
1 Jan 2022

2021

Simulating dice bingooriginal ↗
30 Dec 2021
Verifying a stat from The Athletic NBA Showoriginal ↗
19 Dec 2021
Computing the saturated log partial likelihood for the Cox proportional hazards modeloriginal ↗
16 Dec 2021
What is mean independence?original ↗
11 Dec 2021
Doing linear regression in an online manneroriginal ↗
2 Dec 2021
Computing E[1/(a+X)] for binomial Xoriginal ↗
30 Nov 2021
Computing E[1/(1+X)] with the probability generating functionoriginal ↗
30 Nov 2021
What is the L1 imbalance measure in causal inference?original ↗
25 Nov 2021
Effective sample size for Markov Chain Monte Carlooriginal ↗
12 Nov 2021
What do we mean by effective sample size?original ↗
11 Nov 2021
How heavy-tailed is the t distribution? (Part 2)original ↗
6 Nov 2021
How heavy-tailed is the t distribution?original ↗
6 Nov 2021
How to incorporate observation weights into an estimatororiginal ↗
3 Nov 2021
Standardized mean difference (SMD) in causal inferenceoriginal ↗
31 Oct 2021
What is the Atkinson index?original ↗
15 Oct 2021
In R, 1 == “1” evaluates to TRUEoriginal ↗
8 Oct 2021
What is an Equal Percent Bias Reducing (EPBR) matching method?original ↗
8 Oct 2021
Yule-Walker equations for AR(p) processes and Toeplitz matricesoriginal ↗
25 Sept 2021
Why we can ignore the constant term for AR(p) processesoriginal ↗
25 Sept 2021
The relationship between MA(q)/AR(p) processes and ACF/PACForiginal ↗
23 Sept 2021
What are Shapley values (in interpretable machine learning)?original ↗
17 Sept 2021
What are Shapley values (in game theory)?original ↗
16 Sept 2021
Bloom’s result relating ITT and TOToriginal ↗
15 Sept 2021
General formula for the asymptotic covariance of the OLS estimatororiginal ↗
27 Aug 2021
Getting predictions from an isotonic regression modeloriginal ↗
29 Jul 2021
Using different fonts with ggplot2original ↗
8 Jul 2021
Documentation for internal functionsoriginal ↗
10 Jun 2021
What is the Stable Unit Treatment Value Assumption (SUTVA)?original ↗
8 Jun 2021
Estimating win probability from best-of-7 series is not straightforwardoriginal ↗
8 Jun 2021
NBA playoffs: Visualizing win percentage by seedingoriginal ↗
2 Jun 2021
Small gotcha when using negative indexingoriginal ↗
27 May 2021
Introducing cvwrapr for your cross-validation needsoriginal ↗
25 May 2021
The effect of rescaling all observation weights in the Cox modeloriginal ↗
18 May 2021
What is steepest descent?original ↗
29 Apr 2021
What is Andrews’ Sine?original ↗
26 Apr 2021
What is the Tukey loss function?original ↗
23 Apr 2021
Generating random draws from the Dir(1, 1, …, 1) distribution using the uniform distributionoriginal ↗
20 Apr 2021
Marginal distributions of the Dirichlet distribution and the aggregation propertyoriginal ↗
20 Apr 2021
Is the EPL getting more unequal?original ↗
12 Apr 2021
What is a proper scoring rule?original ↗
27 Mar 2021
Estimating pi with Monte Carlo simulationoriginal ↗
15 Mar 2021
Log-likelihood of probit regression is globally concaveoriginal ↗
9 Mar 2021
A lower bound on x Phi(x) + phi(x)original ↗
2 Mar 2021
tidytuesdayR package for easy downloading on tidy tuesday dataoriginal ↗
27 Feb 2021
What is Gower’s distance?original ↗
23 Feb 2021
The Box-Cox and Yeo-Johnson transformations for continuous variablesoriginal ↗
19 Feb 2021
What is the jackknife+?original ↗
10 Feb 2021
What are spaghetti plots and lasagna plots?original ↗
9 Feb 2021
What is a sunflower plot?original ↗
5 Feb 2021
covidcast package for COVID-19-related dataoriginal ↗
21 Jan 2021
The Mendoza lineoriginal ↗
20 Jan 2021
glmnet v4.1: regularized Cox models for (start, stop] and stratified dataoriginal ↗
14 Jan 2021
Simulating the dice game “Toss Up!” in Roriginal ↗
11 Jan 2021
Exploring the game “First Orchard” with simulation in Roriginal ↗
6 Jan 2021

2020

What is convex clustering?original ↗
31 Dec 2020
Upper bound on the absolute value of roots of polynomialsoriginal ↗
28 Dec 2020
A shiny app for exploratory data analysisoriginal ↗
22 Dec 2020
The law of large populationsoriginal ↗
23 Nov 2020
Variance of coefficients for linear models and generalized linear modelsoriginal ↗
20 Nov 2020
Some notes when using dot-dot-dot (…) in Roriginal ↗
15 Nov 2020
What is the Tweedie distribution?original ↗
11 Nov 2020
How is the F-statistic computed in anova() when there are multiple models?original ↗
3 Nov 2020
Strategies for proving convergence in distributionoriginal ↗
21 Oct 2020
Strategies for proving that an estimator is consistentoriginal ↗
21 Oct 2020
Attributes in Roriginal ↗
19 Oct 2020
What is calibration?original ↗
7 Oct 2020
LaTeX: underbrace and underset to get text underneath textoriginal ↗
6 Oct 2020
p-value around 0.32? You may have a problem with outliers…original ↗
1 Oct 2020
What is the Frisch–Waugh–Lovell theorem?original ↗
21 Sept 2020
Simulating paths from a random walkoriginal ↗
10 Sept 2020
Confusion over ratio metrics in causal inferenceoriginal ↗
5 Sept 2020
Using dplyr::filter when the condition is a stringoriginal ↗
3 Sept 2020
Robit regressionoriginal ↗
1 Sept 2020
Winner’s curse of the low-power studyoriginal ↗
1 Sept 2020
NBA salariesoriginal ↗
29 Aug 2020
The standardized group lassooriginal ↗
20 Aug 2020
Basic manipulation of GIF frames with magickoriginal ↗
6 Aug 2020
Image contours in Roriginal ↗
5 Aug 2020
Density of the log-normal distributionoriginal ↗
29 Jul 2020
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