Often data you’re working with has abstract column names, such as (x1, x2, x3…). Typically, the first step I take when renaming columns with r is...

After refactoring my programming so that it was only about 10 lines of code, using 12 functions I wrote an loaded in via the source command, I went through all the steps in Part 1 of this blog post and Part 2 of this blog post to set up the R package infrastructure using ...

A major advantage of General Regression Neural Networks (GRNN) over other types of neural networks is that there is only a single hyper-parameter, namely the sigma. In the previous post (https://statcompute.wordpress.com/2019/07/06/latin-hypercube-sampling-in-hyper-parameter-optimization), I’ve shown how to use the random search strategy to find a close-to-optimal value ...

In Part 1, I set up RStudio with usethis, and created my first Minimum Viable R Package (MVRP?) which was then pushed to Github to create a new repository. I added a README: Things were moving along just fine, until I got this unkind message (what do you mean NOT an ...

(What does this new package do? Find out here.) I have had package-o-phobia for years, and have skillfully resisted learning how to build a new R package. However, I do have a huge collection of scripts on my hard drive with functions in them, and I keep a bunch of ...

I have been recently confronted to the issue of finding similarities among time-series and though about using k-means to cluster them. To illustrate the method, I’ll be using data from the Penn World Tables, readily available in R (inside the {pwt9...

Intro I was playing around generating fractals in R when I realized the monochromatic green Barnsely Fern I had on my screen didn’t quite look like the leaves I could see outside my window. It was already Fall. In this post I describe a technique to generate a Barnsley ...

Package wyz.code.offensiveProgramming version 1.1.12 is available on CRAN. If you are interested in reducing time and efforts to implement and debug R code, to generate R documentation, to generate test code, then you may consider using this package...

Last week, we started a new course titled “Statistical Programming and Open Science Methods”. It is being offered under the research program of TRR 266 “Accounting for Transparency” and enables students to conduct data-based research so that...

Attribution modelling in R an example Here I am going into some examples in attribution modelling in R. It is a complex topic and much more can be said about it than I will be able to do here. I will here go hands on mostly into the markov model ...

Introduction In the previous part of this series, we looked at writing R functions that can be executed directly by Spark without serialization overhead with a focus on writing functions as combinations of dplyr verbs and investigated how the SQL is generated and Spark plans created. In this third part, ...

Problem Especially in a project with many different scripts, it can be challenging to keep track of all the packages you need to load. It’s also easy to lose track of whether or not you’ve incorporated package loading into the script itself until you switch to a new ...

A paper I worked on was just published in a medical journal. This is quite an odd thing for me to be able to say, given my academic background and the career path I have had, but there you go! The first author of this paper is a long-time friend ...