This release is the first draft for chapters 1 and 2 of The Hitchhiker’s Guide to Econometrics. I would really appreciate some feedback outside my friend’s circle to check. I hope to be writing something useful, a text that you can read after rea...

Your collaborator says to you “I have some code I’d like to distribute to people who will probably work in R most of the time. I don’t write R, but I write C. Can you package this up for me?” so you have a few options: re-write the ...

Last year I benchmarked a few ways of shuffling columns in a data.table, but what about pandas? I didn’t know, so let’s revisit those tests and add a few more operations! pandas winds up being much more competitive than I expected. First, dplyr is by far the ...

Here's how to create a set of custom, lambda functions in Excel. No macros or VBA required.

Introduction The #TidyTuesday weekly challenge is organised by the R4DS (R for Data Science) Online Learning Community. Every tuesday throughout the year, participants work on a common dataset and share the plots they create. The dataset for th...

The dimmed lights of the cinema hall, the hushed anticipation of the audience, and the opening scenes of Nolan’s portrayal of Dr. Oppenheimer drew me in instantly. Amidst the enthralling narrative and cinematic brilliance, my mind began drawing parallels that transcended the screen. The palpable tension, the nexus of ...

Authors: Ivan Svetunkov, Nikos Kourentzes, Rebecca Killick Journal: Computational Statistics Abstract: Many modern statistical models are used for both insight and prediction when applied to data. When models are used for prediction one should optimise parameters through a prediction error loss function. Estimation methods based on multiple steps ahead forecast ...

Introduction When it comes to data visualization in R, the par() function is an indispensable tool that often goes overlooked. This function allows you to control various graphical parameters, unleashing a world of customization possibilities fo...

      A few months ago I used R to investigate black hole word numbers in the English language. A friend suggested there are probably black hole word numbers in other languages. There are only three other languages that I ...

Introduction As a programmer, you’re well aware of the importance of data visualization. A well-crafted plot can convey complex information with clarity and impact. In R, creating stunning plots is a breeze, especially when you’re armed with the...