Data and Code for: Radial Structure in Galaxy RAR Residuals beyond the Stellar-Disc Peak

This record provides the data tables, scripts, and auxiliary reproducibility materials supporting the paper “Radial Structure in Galaxy RAR Residuals beyond the Stellar-Disc Peak.” The materials are designed to make the main numerical checks in the paper transparent and repeatable. They include SPARC-based audit tables, fixed three-zone sample-selection files, toy/reference catalogues, and Python scripts used to reproduce the reported residual-structure diagnostics. The files document how the reference radius is selected from the SPARC rotation-curve mass models, how the normalized radial coordinate is constructed, how stellar-disc decline quantities are evaluated, and how the fixed three-zone samples and reference comparisons are generated. The original SPARC Newtonian mass-model archive is not redistributed in this record. Users who wish to rerun the SPARC-based scripts should download the official Rotmod archive from the SPARC data page and provide it as input to the supplied scripts. The included CSV files record the derived audit outputs and sample-selection summaries used for verification and reproducibility. This archive is intended as a companion data-and-code package for the paper, not as a replacement for the original SPARC database or for the external observational catalogues cited in the manuscript.