R-bloggers

This blog post will cover what centering is, what a sum-to-zero contrast is, why and when you should use them, and how you can do them in R. Specifically, we will focus on their use and how they affect coefficient interpretation in regression tab...

Last year, Antonio Hegar of the R Glasgow user group shared the challenges of organizing an R user group in Glasgow. The group now regularly hosts events, attracting local R... The post Join “Fake it Until You Make it: How and Why to Simulate Data” – First Glasgow User Group Event ...

About Capybara is a fast and small footprint software that provides efficient functions for demeaning variables before conducting a GLM estimation via Iteratively Weighted Least Squares (IWLS). This technique is particularly useful when estimati...

Introduction Yesterday I discussed the use of the function internal_make_wflw_predictions() in the tidyAML R package. Today I will discuss the use of the function extract_wflw_pred() and the brand new function extract_regression_residuals() in t...

This is part of a series of related posts on Apache Arrow. Other posts in the series are: Understanding the Parquet file format Reading and Writing Data with {arrow} (This post) Parquet vs the RDS Format (Coming soon) What is (Apache) Arrow? Ap...

I have made several blog posts on the code I use to compute rank dependent utility In this blogpost however I want to illustrate (by means of an example in R) how the choice of forward vs backward induction can impact the valuation of the same prospect. The Problem To ...

In the realm of statistics, hypothesis testing stands as a cornerstone, enabling researchers and data analysts to make informed decisions based on data. At its core, hypothesis testing is about determining the likelihood that a certain premise about a ...

Implementing parallel execution in your code can be both a blessing and a curse. On the one hand, you’re leveraging more power your CPU has to offer and increasing execution speed, but on the other, you’re sacrificing the simplicity of single-threaded programs. Luckily, parallel processing in R is ...

Bluesky is shaping up to be a nice, “billionaire-proof”1 replacement of what Twitter once was. To bring back a piece of the thriving R community that once existed on ex-Twitter, I decided to bring back the R-Bloggers bot, which spread the word about...

This post extends the replication from the Adaptive Asset Allocation Replication post by running the analysis on OOS (out-of-sample) data from 2015 through 2023. Thanks to Dale Rosenthal for helpful comments. The paper uses the 5 portfolios below. Each...

Note This is a guest blog post written by Benjamin Nowak. He is the winner of the Geocomputation with R book cover competition for the second edition of the book. Congratulations! One page, many things to show Like Marco Sciaini, the ...

Leonetto Cappiello, Benedictine R is known for its versatility and extensive collection of packages. As of the publishing of this post, there are over 23 thousand packages on R-universe. But what if I told you that you could do some pretty amazing things without loading any packages at all? There’s ...

Leonetto Cappiello, Benedictine R is known for its versatility and extensive collection of packages. As of the publishing of this post, there are over 23 thousand packages on R-universe. But what if I told you that you could do some pretty amazing things without loading any packages at all? There’s ...

Once upon a time I was a dedicated network scientist. Currently though they are more peripheral in my work and I just like to toy around with interesting datasets. One of those is the CRAN co-authorship network. In a co-authorship network, two i...

The R Consortium recently connected with Lampros Sp. Mouselimis, the creator of the ICESat2R package, discussing the ICESat-2 mission, a significant initiative in understanding the Earth’s surface dynamics. This NASA... The post Satellite Data with R: Unveiling Earth’s Surface Using the ICESat2R Package appeared first on ...

#147–148PuzzlesAuthor: ExcelBIAll files (xlsx with puzzle and R with solution) for each and every puzzle are available on my Github. Enjoy.Puzzle #147Picture above showing sudoku-like puzzles looks difficult, but puzzle itself is really hardcore. Proba...