Faster package installation Every few weeks or so, a tweet pops up asking about how to speed up package installation in R Depending on the luck of twitter, the author may get a few suggestions. The bigger picture is that package installation time is starting to become more of an ...

I am locked at home, due to the COVID-19 emergency in Italy. Luckily I am healthy, but there is not much to do, inside. I thought it might be nice to spend some time to talk about seed germination models and the connections with survival analysis. We all know that ...

I am locked at home, due to the COVID-19 emergency in Italy. Luckily I am healthy, but there is not much to do, inside. I thought it might be nice to spend some time to talk about seed germination models and the connections with survival analysis. We all know that ...

Introduction Top R resources on Coronavirus Coronavirus dashboard: the case of Belgium How to create your own Coronavirus dashboard Additional notes Data Open source Accuracy Publish your dashboard Coronavirus dashboard: the case of Belgium ...

Are you developing an automated exploration tool? Here we propose some alternatives to drop columns with high percentage of NAs. In this previous tip we talk about BaseR vs Tidy & Purrr counting NAs performance. Not leaving the pipeflow. How much does it cost?;) It depends on the NA distribution between ...

A Markov Chain describes a sequence of states where the probability of transitioning from states depends only the current state. Markov chains are useful in a variety of computer science, mathematics, and probability contexts, also featuring prominently in Bayesian computation as Markov Chain Monte Carlo. Here, we’re going to ...

My guess is that by now everybody knows that the public Github repository maintained by the Johns Hopkins University Center for Systems Science and Engineering has developed to a standard resource for individuals interested in analyzing the spread of SARS-CoV-2. There are alternative resources and blog articles covering them. Also, ...

Introduction Top R resources on Coronavirus Coronavirus dashboard: the case of Belgium How to create your own Coronavirus dashboard Additional notes Data Open source Accuracy Coronavirus dashboard: the case of Belgium Introduction The Novel COVID-19 Coronavirus is the hottest topic right now. Every day, the media and newspapers share the ...

I am locked at home, due to the COVID-19 emergency in Italy. Luckily I am healthy, but there is not much to do, inside. I thought it might be nice to spend some time to talk about seed germination models and the connections with survival analysis. We all know that ...

This post tries to accomplish several things concisely. I’m making available a new function (chaid_table()) inside my own little CGPfunctions package, reviewing some graphing options and revisiting our old friend CHAID – Chi Squared \(\chi^2\) Automated Interaction Detection – to look at modeling a “real world” business problem. It’s ...

For data science projects I recommend using source control or version control, and committing changes at a very fine level of granularity. This means checking in possibly broken code, and the possibly weak commit messages (so when working in a shared project, you may want a private branch or second ...

Last summer, I wrote about love affairs and linear differential equations. While the topic is cheerful, linear differential equations are severely limited in the types of behaviour they can model. In this blog post, which I spent writing in self-quarantine to prevent further spread of SARS-CoV-2 — take that, cheerfulness — I ...

Previous Posts This is part of a sequence of posts chronicling my journey to manually implement as many MCMC samplers as I can from scratch. Code from previous psots can be found on GitHub. Also I tweet more than I should: StableMarkets. The Mult...

Previous Posts This is part of a sequence of posts chronicling my journey to manually implement as many MCMC samplers as I can from scratch. Code from previous psots can be found on GitHub. Also I tweet more than I should: StableMarkets. The Mult...

RMarkdown is a great tool for creating a variety of documents with R code and it’s a natural choice for producing blog posts such as this one. However, depending on which blog software you use, you may run into some problems related to the file paths for figure images (...