R-bloggers

The Problem You have a 2x2 grid of squares, and you need to paint each square one of four colors: red, blue, green, or yellow. The restriction is that no two adjacent squares (sharing a side) can have the same color. How many valid ways you ca...

Recent versions of NIMBLE now include the ability to use macros in models. NIMBLE is a system for building and sharing analysis methods for statistical models, especially for hierarchical models and computationally-intensive methods (such as MCMC, Laplace approximation, and SMC). A NIMBLE macro is a succinct syntax that expands to ...

As I’ve already discussed in this vignette of my {rix} package, it is very easy to run a {targets} pipeline inside of a Nix environment for increased reproduciblity. The main drawback of {targets} though, is that it is not possible to comp...

Over my past few posts, I’ve been progressively building towards a Bayesian model for a stepped-wedge cluster randomized trial with a time-to-event outcome, where time will be modeled using a spline function. I started with a simple Cox proportional...

The pharmaceutical industry develops life-saving drugs while maintaining strict quality standards. Regulatory requirements ensure safety and compliance but can slow process changes due to extensive documentation and resource demands. GxP compliance can be complex, but we’ve got you covered. Learn how to navigate regulations in the pharmaceutical industry. Quality ...

Have you ever wanted access to __yfinance__ data in an Excel spreadsheet? If so, this two-part blog may be of interest. It describes an approach using a Flask API to access __yfinance__ data and the Power Query queries required to consume the data in Excel.

Have you ever wanted access to __yfinance__ data in an Excel spreadsheet? If so, this two-part blog may be of interest. It describes an approach using a Flask API to access __yfinance__ data and the Power Query queries required to consume the data in Excel.

Online probabilistic estimation of carbon beta and carbon Shapley values for financial and climate risk at the 18th FINANCIAL RISKS INTERNATIONAL FORUM -- Institut Louis Bachelier/Fondation du Risque/Europlace Institute of Finance

How do we identify relevant articles in our domains? This project uses example journal RSS feeds with abstracts, uses LLMs to extract points of interest, and shares insights on Bluesky—stimulating curiosity. Motivations There are countless excellent articles published daily, but how do we identify which ones are relevant to ...

In online A/B testing, we often face a significant practical challenge: the randomization unit differs from the analysis unit. Typically, control and treatment groups are randomly assigned at the user level, while metrics—such as click-through r...

I recently conducted a small time series workshop session for AI+ training hosted by ODSC. It went really well, and I’d be happy to offer longer interactive workshops going forward (please reach out if your team would like one!). One of the examples I shared was derived from the ...

The MAJOR story of F1’s 2025 season is of course the match-up between Sainz and Albon (sorry, did something happen at Ferrari?). Albon’s current level is quite a mystery, because since going up against Verstappen as a rookie he has only ever had...