Software

I build open-source tools, mostly in R. Everything lives on GitHub.

PostcodesioR

An R package for UK geocoding — a wrapper around the free postcodes.io API. It supports postcode lookups, reverse geocoding, and bulk queries, returning administrative geographies (constituencies, wards, NHS areas, and more) for any UK postcode.

Published on CRAN and peer-reviewed by rOpenSci.

• Source: github.com/ropensci/PostcodesioR
• Background: blog post on the package’s origins

fnirsr

An R package for loading, plotting, and analysing functional near-infrared spectroscopy (fNIRS) data from Hitachi ETG-4000 recordings — built during my PhD research on the cognitive neuroscience of language.

• Source: github.com/erykwalczak/fnirsr
• Background: introductory blog post

Smaller tools and analyses

Code accompanying my blog posts — Shiny apps, scrapers, and analysis scripts — is published as gists and repositories on GitHub.