Unfortunately not everyone knows about literate programming so many tables in Word documents are “generated” by hand (generated is really too strong a word) and what very often happens is that these handcrafted tables have typos. Usually it’s totals that are wrong. Checking the totals in these tables by ...

Data scientists, statisticians, analysts, researchers, and many other professionals write a lot of code. Not only do they write a lot of code, but they must also read and review a lot of code as well. They either work in teams and need to review eac...

I’ve been working on an ebook (that you can read over here) made using Quarto. Since I’m also selling a DRM-free Epub and PDF on Leanpub I wanted to share some tips and tricks I’ve learned to generate an Epub that passes epubcheck using Quarto. Quarto is ...

You expect me to read this long ass blog post? If you’re too busy to read this blog post, know that I respect your time. The table below summarizes this blog post: Need Solution I want to start a project and make it reproducible. {renv} and Docker There’s ...

I’ve been working on a way to evaluate how old R code runs on the current version of R, and am now ready to share some results. It all started with this tweet: The problem is that you have to find old code laying around. Some people have found ...

I’ve had some discussions online and in the real world about this blog post and I’d like to restate why containerization is needed for reproducibility, and do so from the lens of functional programming. When setting up a pipeline, wether you’re a fu...

This blog post is a summary of Chapters 9 and 10 of this ebook I wrote for a course The goal is the following: we want to write a pipeline that produces some plots. We want the code to be executed inside a Docker container for reproducibility, and we want this container ...

Open source is a hard requirement for reproducibility. No ifs nor buts. And I’m not only talking about the code you typed for your research paper/report/analysis. I’m talking about the whole ecosystem that you used to type your code. (I won’t be talking about making ...

This blog post is taken from a chapter of my ebook on building reproducible analytical pipelines, which you can read here If you want to follow along, you can start by downloading the data I use here. This is a smaller dataset made from the one yo...

This blog post is divided in two parts: in the first part I’ll show you how to create a Linux Live USB with persistent storage that can be used as development environment, and in the second part I’ll show you the easiest way to set up RStudio and ...

Foreword: This is not a tutorial nor anything like that. I’m going to talk about free software, open source, and their licenses. I’m going to give my (non-)expert opinion on it. You may find, after having finished reading this post, that I wasted your time. So only ...

The snake biting its own tail Disclaimer: I’m a beginner at JS, so don’t ask me about the many intricacies of JS. I’ve been working on a Shiny app for work these past few weeks, and had to use Javascript to solve a very specific issue I ...

I’ve tweeted this: Just changed like 100 grepl calls to stringi::stri_detect and my pipeline now runs 4 times faster #RStats — Bruno Rodrigues (@brodriguesco) July 20, 2022 much discussed ensued. Some people were surprised, because in their ...

R will always be arcane to those who do not make a serious effort to learn it. It is not meant to be intuitive and easy for casual users to just plunge into. It is far too complex and powerful for that. But the rewards are great for serious data ...

Learning number 1: make functions fail early When writing your own functions, avoid conversion of types without warning. For example, this function only works on characters: my_nchar

I have this hypothesis that packages that introduce a unique syntax, or a workflow change, get adopted less by users, even if what these packages do is super useful. I’m going to discuss two examples of packages that I think are really, really useful, but sometimes I wonder how ...

I have this hypothesis that packages that introduce a unique syntax, or a workflow change, get adopted less by users, even if what these packages do is super useful. I’m going to discuss two examples of packages that I think are really, really useful, but sometimes I wonder how ...

I am very happy to annouce that the {chronicler} package, which I’ve been working on for the past 3 months has been released on CRAN. Install it with:

install.packages("chronicler")

{chronicler} allows you to create objects that carry a log with them. Here is an example of an object that has ...

Hey kid, fancy some self-documenting {ggplots} like this one: Just read on! I’ve been working hard on a package that I’ve called {chronicler} (read my post on it here) which allows you to attach a log to the objects you create, thus making it easy to know how ...

Introduction: functions To understand Monads, I think it’s useful to first think about functions; why do we use functions? Why don’t we simply write scripts with the required operations one after the other? For instance, to compute the average ...