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fireRiskR

An R package to interactively explore published Fire Weather Index (FWI) probability ratios (PR) for Australian bushfire risk.

Website (pkgdown): https://etc5523-2025.github.io/assignment-4-packages-and-shiny-apps-Dhruvinn13/

Features

  • Packaged dataset: fwi_pr (short, documented summary table)
  • Shiny app in inst/app/app.R (scenario selector + PR bar chart + values table)
  • CSV download of the filtered table from inside the app
  • roxygen2 docs, vignette, and a pkgdown site

Note: Values are summarised/derived from van Oldenborgh et al. (2021).

Installation 

# install.packages("remotes")
remotes::install_github("ETC5523-2025/assignment-4-packages-and-shiny-apps-Dhruvinn13")

Quick start

Example 

library(fireRiskR)

# Which scenarios are available?
unique(fwi_pr$scenario)

# Simple summary by source (ignores NAs)
aggregate(pr_best ~ source, data = fwi_pr, FUN = function(x) mean(x, na.rm = TRUE))

# Open the app
launch_app()

Data

The package ships a small table fwi_pr with published probability ratios (“times more likely”) for extreme Fire Weather Index events.

head(fwi_pr)

App

Below is a quick glance.

fireRiskR Shiny app-scenario selector, PR bar chart with error bars, and values table