intervention-analysis

Turn before/after time-series questions into counterfactual charts, reproducible reports, share packages, and AI-agent-ready handoffs.

Code for ARIMA with intervention. Original data is the monthly Spot Crude Oil Price: West Texas Intermediate (WTI) from January 1991 to October 2000, with the intervention being Asian Economic Crisis occuring at roughly January of 1997.

Time-series intervention analysis of the UK seatbelt law's effect on driver fatalities

A undergoing investigation of multi-scale causality in social science

Interrupted time-series analysis of weekly cereal sales using segmented regression, ARMA(1,1) residual modeling, diagnostics, and rolling forecasts.