Apps

A selection of data apps I have built and/or deployed here for use. Applications like these are some of the key tools used to convert data into information and action. Although superficially similar to BI (business intelligence) dashboards (as created in tools like Qliksense, PowerBI, and tableau), shiny apps are significantly more powerful and flexible. They can accept file input and user input, run data science and bespoke statistical computations, generate flexible interactive visualisations, move data around, and create files in many formats for download. Shiny can be used to build almost anything you can imagine. Please get in touch if you need an app to solve one of your problems...

Letters matched to Human Phenotype Ontology

An app I built to explore possibilities for automated detection of important clinical terms in patient letters. A few example (synthetic) patient letters are included, and the app detects and cross-references these with terms from the Human Phenotype Ontology, as commonly used in Clinical Genetics departments.
2026-04-02

CDS Visualiser

An app I built to explore and learn about the NHS Commissioning Datasets. Built using the XML schema documentation as the source of truth, this app allows you to explore the shape of the datasets that flow monthly from NHS provider hospitals to the Department of Health and Social Care.
2026-03-25 View open-source repo

Hospital Flow

An app I built during a coding demo, which was recorded on YouTube. This app uses synthetic data to explore the daily flow of patients through a hospital, and explore how the time offset between patient arrivals and discharges makes for a busy place during the middle of the day. Watch the recording on YouTube
2026-03-23 View open-source repo

Sketch

A minimal R Shiny application to make sketchnig concepts easier. Make a sketch, download it to clipboard or png, and paste it into a chat window. No more hoping Microsoft Whiteboard loads - just sketch and share!
2026-03-20 View open-source repo

National Flu

This app uses the NHS's publicly available data on the numbers of patients in hospital with flu to show that information over time, and by hospital or group of hospitals. Originally bult by Andy McCann of the Mids and Lancs Commissioning Support Unit. Andy is retuired now, but made his code open-source, allowing me to deploy it here. This app was not used last winter, but I will be updating it prior to the 2026/27 winter season.
2025-03-25 View open-source repo
The Simmer discrete event simulation package logo

DES Patient Pathway

Discrete event simulation model of a simple acute hopsital service. Adjust the rate of patient arrivals, and the capacity of your hospital service (Outpatient clinics, operating theatres, and beds), and investigate the resulting queue sizes. Can you find an acceptable performance level with the resources you can make available?
2024-07-25 View open-source repo
Image of an erupting geyser

Geyser

A really simple R Shiny Application, designed to demonstrate the concept of a data application. It takes a single input from the user, and configures the bin width for a plotted histogram. Also useful to help explain histograms!
2023-03-30