Atlas Renovation Price Index — Methodology & Version History
Methodology
Data source
Atlas AI platform quotation data, aggregated from real renovation proposals after anonymization and removal of personally identifiable information.
Price calculation
Median price is used instead of average price to reduce distortion from unusually high or low quotations.
Outlier handling
Atlas AI applies the IQR method and keeps values within the range of Q1−1.5×IQR to Q3+1.5×IQR for public benchmark reporting.
Regional coefficients
KL = 1.00, Selangor = 0.95, Penang = 0.92, JB = 0.95, East Malaysia = 1.18.
Privacy protection
All data is anonymized. Public reports exclude names, phone numbers, identity numbers, email addresses, exact customer addresses, and other identifiable details.
Update frequency
Quarterly, when the Atlas AI platform reaches sufficient validated sample thresholds to justify a new benchmark release.
Version History
The table below is loaded dynamically from Atlas AI's public ARPI version feed. Each row represents a benchmark version derived from ARPI trigger records, with publication metadata attached where available.