In this tutorial I will show you how we go from network data to a rectangular format that is suited for machine learning. Many things in the world are graphs (networks). For instance: real-life friendships, business interactions, links between websites and (digital) social networks. I find graphs (the formal name ...

My last 4 posts have all focused on the vaccines being produced to fight COVID-19. They have primarily focused on Bayesian methods (or at least comparing bayesian to frequentist methods). This one follows that pattern and provides expanded cover...

We are in the middle of a mind-boggling natural experiment here in the United States. In spite of the advice from the CDC and dire warnings from our nation’s health care experts, millions of Americans will travel over the long holiday weekend. Although the number of people flying is ...

Considering a binary random walk, starting at zero, what is the probability of being almost sure of winning at some point only to lose at the end? This is the question set by the post-election Riddler, with almost sure meaning above 99% and the time horizon set to n=101 steps (it ...

This report describes an update to the R package ‘dvir’ to add support for the TikZ graphics package. This allows R users to make use ...

Basic Routing for Shiny Web Applications Web applications couldn’t exist without routing. Think about it in terms of the Appsilon website – you’ve visited our home page, navigated to the blog, and opened this particular article. That’s routing in a nutshell – matching UI components to a URL. Appsilon ...

How to load geospatial data into your workspace and prepare it for visualization.

Internet wisdom is divided on whether one-page resumes are more effective at landing you an interview than two-page ones. Most of the advice out there seems much opinion- or anecdotal-based, with very little scientific basis. Well, let’s fix that. Being currently open to work, I thought this would be ...

Continuous Deployment made easy with GitHub Actions and Heroku This article is a short guide on deploying a Shiny app on Heroku. Familiarity with Docker, Shiny and GitHub is presumed. For an introduction to Docker, see Deploying a Shiny Flexdashboard with Docker. This article was also published on https://www....

This article is part of a R-Tips Weekly, a weekly video tutorial that shows you step-by-step how to do common R coding tasks. Making multiple ARIMA Time Series models in R used to be difficult. But, with the purrr nest() function and modeltime, fore...

BlueSky Statistics is an easy-to-use menu system that uses the R language to do all its work. My detailed review of BlueSky is available here, and a brief comparison of the various menu systems for R is here. I’ve just … Continue reading → The post BlueSky Statistics Intro and User ...