stCEG: An R Package for Modelling Events over Spatial Areas Using Chain Event Graphs

TL;DR

stCEG is an R package that enables users to model spatial event data with Chain Event Graphs, offering full customization, visualization, and a user-friendly GUI, demonstrated through a London homicides dataset.

Contribution

This is the first software package for CEGs that allows complete model customization and includes visualization and a web-based GUI for broader accessibility.

Findings

Successful modeling of London homicides using CEGs

Interactive visualizations facilitate understanding of spatial event data

Full customization enhances the flexibility of CEG applications

Abstract

stCEG is an R package which allows a user to fully specify a Chain Event Graph (CEG) model from data and to produce interactive plots. It includes functions for the user to visualise spatial variables they wish to include in the model. There is also a web-based graphical user interface (GUI) provided, increasing ease of use for those without knowledge of R. We demonstrate stCEG using a dataset of homicides in London, which is included in the package. stCEG is the first software package for CEGs that allows for full model customisation.