As a grad student working primarily on statistical methodology, I regularly experience phases of total disillusionment with math/stats. Recently I realized that when I don’t feel like doing “real” math for prolonged periods of time, I instead ... [Read more...]

The aim of intubate (logo ) is to offer a painless way to add R functions that are non-pipe-aware to data science pipelines implemented by magrittr with the operator %__%, without having to rely on workarounds of varying complexity. Instal... [Read more...]

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As a grad student working primarily on statistical methodology, I regularly experience phases of total disillusionment with math/stats. Recently I realized that when I don’t feel like doing “real” math for prolonged periods of time, I instead ... [Read more...]

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If you didn't have a chance to catch my presentation at the Machine Learning and Data Science Summit, I'll be reprising an updated version of the talk in a live webinar on Tuesday, November 1. I'll also be taking questions from the audience after the webinar. You can register here, and ... [Read more...]

A new, development version, of package JMbayes has been rolled-out on the dedicated GitHub repo. The major addition in this version is a set of new functions that can fit multivariate joint models for multiple longitudinal outcomes and a time-to-event. As with other GitHub packages, it can be easily installed ... [Read more...]

In the commercial environment money makes the world go around, while in academia recognition (e.g., number of times your work is cited, being fawned over at conferences, impressive job titles) is the coin of the realm (there are a few odd balls who do it out of love for ... [Read more...]

This is the latest post in a series analyzing Arkansas traffic fatalities. Please take a look at parts 1 (a map of 2015 traffic deaths), 2 (heat maps of fatalities by day from 2000-2015), and 3 (heat maps of fatalities by day of week from 2000-2015) if you haven’t already. Visualizations Today’s ... [Read more...]

Digital transformation or digital business transformation is apparently currently one of the hot topics in the German business world. What puzzles me slightly, is why just now? The digitization trend has been around for ~20 years. Established buisness ... [Read more...]

This set of exercises will help you to learn and test your skill with basic arithmetical operations and logic functions. Before proceeding, it might be helpful to look over the help pages for the **, %/%, %%, and the logical operators such as !=, ==, __=, isTRUE . Answers to the exercises are available here. […] [Read more...]

Guest post by AVNER KANTOR I used the wonderful tutorial of Dean Attall to set my machine in Google cloud. After I finished to configure it successfully I wanted to redirect my domain to the Shiny application URL. This is a short description how you can do it. The first ... [Read more...]

Someone sent me some questions by email, and I decided to answer some of them here. How important is it that I know and understand the underlying mathematical framework to forecasting methods? I understand conceptually how most of them work, but I feel as if I may benefit from truly ... [Read more...]

Someone sent me some questions by email, and I decided to answer some of them here. How important is it that I know and understand the underlying mathematical framework to forecasting methods? I understand conceptually how most of them work, but I feel as if I may benefit from truly ... [Read more...]

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How Best To Learn R Programming So what’s the best or most efficient way to learn R programming? I have read numerous books and blogs on R programming in an attempt to learn more about R. While doing this has helped me understand the basics, these resources tend to ... [Read more...]

Abstract In the latest update to the rwml-R Github repo, I provide R code to accompany Chapter 4 of the book “Real-World Machine Learning” by Henrik Brink, Joseph W. Richards, and Mark Fetherolf. Topics covered include optimization of model parame... [Read more...]

Quantitative trading strategies are easy to develop in R if you can manage the data workflow. In this post, I analyze every stock in the S&P500 to screen in terms of risk versus reward. I’ll show you how to use quantmod to collect daily stock pri... [Read more...]

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