Preview my new book: Introduction to Reproducible Science in R
I’m pleased to share Part I of my new book “Introduction to Reproducible Science in R“. The purpose of this …
Category Archives: functional programming
Modeling data with functional programming, Part I
The latest draft of my book is available. This will be my last pre-publication update, as I’m in the process …
Modeling data with functional programming – State based systems
UPDATE: This draft is obsolete. Please see latest draft at I’m pleased to announce the availability of my latest chapter …
Modeling data with functional programming – lists
UPDATE: This draft is obsolete. Please see latest draft at The latest update of my book includes a chapter on …
From functional programming to MapReduce in R
The MapReduce paradigm has long been a staple of big data computational strategies. However, properly leveraging MapReduce can be a …
How to reliably access network resources in R
It’s frustrating when an application unexpectedly dies due to a network timeout or unavailability of a network resource. Veterans of …
Type constraints and NAs in lambda.r
Someone asked recently how lambda.r deals with NAs in type constraints. Type constraints are optional decorations on a function that …
Automated parsing of ebola situation reports
I’m pleased to announce public availability of ebola.sitrep, a package I wrote to download and parse ebola situation reports. The …
Generating artificial plants using stochastic Lindenmayer systems with d3.js
In a previous post I wrote about iterative function systems and how to generate fractals. This approach used matrices that …
How to use vectorization to streamline simulations
While grading some homework it became apparent that many of the idioms of R are not widely known and aren’t …
Cartesian Faith 