How does driving an electric car compare to driving a similar gasoline car in terms of total pollution damages? While some comments about the future of mobility may suggest that electric cars are already clearly much more environmental friendly, the an...
While there is more and more data available in structured formats (CSV, JSON) through initiatives like OpenData, sometimes nicely formatted data still not publicly available. When I decided to...
I like both Python and R, and teach them both, but for data science R is the clear choice. When asked why, I always note (a) written by statisticians...
The idea of having a 360 degree view of the entire job seeking and matching landscape has always been a dream of any labour economist. Just imagine, a dataset...
Inspired by David Schoch’s blog post, Traveling Beerdrinker Problem. Check out his blog, he has some amazing posts! Introduction Luxembourg, as any proper European country, is full of castles. According to Wikipedia, “By some...
On November 7th, Uwe Friedrichsen and I gave our talk from the JAX conference 2018: Deep Learning - a Primer again at the W-JAX in Munich. A few weeks before,...
I’ve been inspired by two recent talks describing the challenges of using instrumental variable (IV) methods. IV methods are used to estimate the causal effects of an exposure or...
Imagine you are a fish ecologist who compiled a list of fish species for your country. 🐟 Your list could be useful to others, so you publish it as a...
Here’s a feature of dplyr that occasionally bites me (most recently while making these graphs). It’s about to change mostly for the better, but is also likely to bite...
I've posted several examples here of using Azure Cognitive Services for data science applications. You can upload an an image or video to the service and extract information about...
This will be a non-technical post illustrating the problems with identifying treatment responders or non-responders using inappropriate within-group analyses. Specifically, I will show why it is pointless to...
Introduction These past few weeks I’ve been writing about a new package I created, MCHT. Those blog posts were basically tutorials demonstrating how to use the package. (Read the...
Introduction Domain squatting or URL hijacking is a straightforward attack that requires little skill. An attacker registers a domain that is similar to the target domain and hopes that...
No hables de futuro, es una ilusión cuando el Rock & Roll conquistó mi corazón (El Rompeolas, Loquillo y los Trogloditas) In this post I create flowers inspired in...
In this explainer I walk you through the steps I took to create a twitter bot that tweets daily about people who died on that date. I created a script that...
Today, we will return to the Fama French (FF) model of asset returns and use it as a proxy for fitting and evaluating multiple linear models. In a previous...
Today, we’re continuing our blog series on new features in RStudio 1.2. If you’d like to try these features out for yourself, you can download a preview release of...
You can file this one under “I may have the very specific solution if you’re having exactly the same problem.” So: if you’re running some R code and you...
Another maintenance release of RcppMsgPack got onto CRAN today. Two new helper functions were added and not unlike the previous 0.2.2 release in, some additional changes are internal...
First Statistics Sunday in far too long! It's going to be a short one, but it describes a great trick I learned recently while completing a time study for...
### GROWING LIST ### base_lst1
The epubr package provides functions supporting the reading and parsing of internal e-book content from EPUB files. This post briefly highlights the changes from v0.4.0. See the vignette for...
By Gabriel Vasconcelos and Yuri Fonseca The intuition Let us begin with a brief explanation about Benford’s law and why should it work as a fraud detector method. Given...
The libcurl library (the foundational library behind the RCurl and curl packages) has switched to using OpenSSL’s default ciphers since version 7.56.0 (October 4 2017). If you’re a regular...
Since the U.S. midterm elections I’ve been playing around with some Congressional Quarterly data about the composition of the House and Senate since 1945. Unfortunately I’m not allowed to...
CategoriesProgramming Tags R Markdown R Programming Tips & Tricks In this article, you learn how to make a visualization dashboard in R. First you need to install the `rmarkdown` package into your R library....
Last week I blogged about some different ways of dealing with data in a cross tab that has been suppressed as a means of disclosure control, when the count...
In R, there are a couple ways to convert the column-oriented data frame to a row-oriented dictionary list or alike, e.g. a list of lists. In the code snippet...
A second and minor update for the RcppGetconf package for reading system configuration — not unlike getconf from the libc library — is now on CRAN. Changes are minor....
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