This post is my good-faith effort to create a simple linear model using the Bayesian framework and workflow described by Richard McElreath in his Statistical Rethinking book.1 As always - please view this post through the lens of the eager student and not the learned master. I did my best ...

R version 4.0 is just around the corner. One of the changes in the new version is the improved default color palette using the palette() function. Proposed colors The new proposed palette() default is less saturated and more balanced, while at the same time, it follows the same basic pattern of ...

I am super, super thrilled to finally be able to announce that patchwork has been released on CRAN. Patchwork has, without a doubt, been my most popular unreleased package and it is great to finally make it available to everyone. Patchwork is a package for composing plots, i.e. placing ...

Causal inference goes beyond prediction by modeling the outcome of interventions and formalizing counterfactual reasoning. In this blog post, I provide an introduction to the graphical approach to causal inference in the tradition of Sewell Wright, Judea Pearl, and others. We first rehash the common adage that correlation is not ...

This post will detail a rather important finding I found while implementing a generalized framework for momentum asset allocation backtests. … Continue reading →

A challenge from The Riddler last weekend came out as the classical Frobenius coin problem, namely to find the largest amount that cannot be obtained using only n coins of specified coprime denominations (i.e., with gcd equal to one). There is always such a largest value. For the units ...

Nina and I have prepared a quick introduction video for Practical Data Science with R, 2nd Edition. We are really proud of both editions of the book. This book can help an R user directly experience the data science style of working with data and machine learning techniques. The book ...

Here is an example of plotting 4 venn diagrams in a single screen with a 2*2 layout. library(VennDiagram)#defining vectorsav

Whoever starts a job as a developer in 2019, be it in software development or in data science, data ops, etc., is usually confronted with a tool for version management relatively early. Programs such as Git, SVN and BitKeeper are primarily used to transparently wind forwards and rewind the development history ...

Interactive data visualization is a must to develop attractive tools for a broad audience. Here I will show how to use a JavaScript framework to visualize results computed with R. I think it is a good idea to keep computation separated from visualization to make more robust pipelines, hence the ...

A new version of pins is available on CRAN! pins 0.3 comes with many improvements and the following major features: Support for new cloud boards to pin resources in Azure, GCloud and S3 storage. Retrieve pin information with pin_info() including properties particular to each board. You can install this new ...

See which US states are most excited about Thanksgiving. Explore Google search popularity for the keyword “thanksgiving” while creating easy US maps in R using the usmap package.