Very briefly: Last week was useR! conference time again, coming to you this time from Toulouse, France I’ve retrieved 8 318 tweets that mention #user2019 and run them through my report generator And here are the results Take-home message this year: the R Ladies rock!
I recently learned how to use the choroplethr package through a short tutorial by the package author Ari Lamstein (youtube link here). To cement what I learned, I thought...
For some time I’ve wanted to recreate the cover art from Joy Division’s Unknown Pleasures album. The visualisation depicts successive pulses from the pulsar PSR B1919+21, discovered by Jocelyn...
My web scraping project explored the distribution of headline sentiment by news source. To do this, I scraped the Nasdaq latest market headlines page and applied sentiment analysis to...
Compared with other types of neural networks, General Regression Neural Network (Specht, 1991) is advantageous in several aspects. Being an universal approximation function, GRNN has only one tuning parameter...
The useR! 2019 held in Toulouse ended couple of days ago. I spoke of the recent R journal publication about forecast combinations (joint work with Christoph Weiss and Gernot...
While reading Dr. Nina Zumel’s excellent note on bias in common ensemble methods, I ran the examples to see the effects she described (and I think it is very important...
I’m back from useR! 2019!, Toulouse, where I gave one talk and a workshop. Here are the links to the materials. 2019-07-08 Contributing to the R ecosystem useR! newbie session A short...
Simulating data is an invaluable tool. I use simulations to conduct power analyses, probe how robust methods are to violating assumptions, and examine how different methods handle different types...
The {waffle} package got some 💙 this week and now has a substantially improved geom_waffle() along with a brand new sibling function geom_pictogram() which has all the powerful new...
Below are the slides for my Future: Simple Parallel and Distributed Processing in R that I presented at the useR! 2019 conference in Toulouse, France on July 9-12, 2019. My...
Background The Collatz Conjecture is a famous unsolved problem in number theory. If you’re not familiar with it – the conjecture is very simple to understand, yet, no one...
“He felt that his whole life was some kind of dream and he sometimes wondered whose it was and whether they were enjoying it.” “The ships hung in the...
In a previous post I have shown that without intervention RcppNumerical does not handle integration over infinite ranges. In this post I want to generalize the method to integrals...
Unless I missed a point in the last riddle from the Riddler, there is very little to say about it: Given N ocre balls, N aquamarine balls, and two...
In our previous article , we showed that generalized linear models are unbiased, or calibrated: they preserve the conditional expectations and rollups of the training data. A calibrated model...
Salut mes amis! Today I’ve presented my package at the useR!2019 conference in Toulouse, France. This is a nice conference, focused on specific solutions to specific problems. Here,...
This is the second part about my project that deals with the Twitter network of members of the Bundestag. After … Read More →
For the R tutorial that I gave at the WZB in the previous semester, I gave an introduction on how … Read More →
This post builds upon two earlier posts: Comparing Frequentist, Bayesian and Simulation methods and conclusions More Bayes and multiple comparisons Background This all started with a nice post from Anindya Mozumdar on the R Bloggers...
Intro In this post I’ll make an exception and instead of sharing my research I’ll chime in on the never ending “R vs Python” squabble. The tl;dr version is: R is superior...
Documentation matters ! Think about future you and others. Whatever is the aim of your script and analyses, you should think about documentation. The way I see it, R...
EARL London 2019 is getting closer! We’ve got a great line up of speakers from a huge range of industries and three fantastic keynote speakers – Helen Hunter –...
Never heard of non-standard evaluation? Then our colleague Markus has the perfect answer for you: Bang Bang! In this blog post, Markus introduces meta-programming when using dplyr. Der Beitrag Bang...
On July 5, the R Core Group released the source code for the latest update to R, R 3.6.1, and binaries are now available to download for Windows, Linux...
A friend called me the other day for advice on how to submit an R package to CRAN along with a proof his method was mathematically sound. I replied...
Before actually using a dynamic exercise in a course it should be thoroughly tested. While certain aspects require critical reading by a human, other aspects can be automatically stress-tested...
How to use R in AWS Lambda With AWS Lambda, small and frequent jobs can be done without setting up an instance and keeping it “alive” waiting for requests The...
Jobs for R users