This repo contains code for some materials I used in a presentation at the EARL (Enterprise Applications of the R Language) conference in London on 12 September 2018.
Note that this talk was restricted to published data only and the content of this talk does not reflect or constitute official government policy.
The talk demonstrated a four-step process in the development of an interactive map tool given user feedback at each stage. Example code is hosted in this repo and the HTML outputs are viewable in-browser. The steps are shown below (click to be taken to the example):
- Leaflet + Flexdashboard
- Leaflet + Flexdashboard + DT
- Leaflet + Flexdashboard + DT + Crosstalk
And in meme format if you prefer:
Crosstalk: Shiny-like without Shiny
Self-service interactive tools have great power to support decisions by policy-makers. Shiny apps are a natural fit for this, but it's not always easy to share them within the public sector. This is due to issues like a lack of server space, highly sensitive data and users who aren't R-savvy.
Joe Cheng's Crosstalk package (http://rstudio.github.io/crosstalk/) overcomes this with shared data objects that react to user inputs, altering the content of multiple widgets on the fly. I'll explain how I used Crosstalk to develop a 'pseudo-app' for exploring schools data with the Leaflet (maps), Plotly (charts) and DT (tables) widgets inside the Flexdashboard framework and how I shared it easily with policy-making users as a static HTML file for exploration in the browser.