SK-SAS MATLAB Code and Simulation Data for Short-Record Wiener-System Identification

This record contains the MATLAB implementation and simulation data supporting the manuscript “Shape-Adaptive Constrained-Spline Identification of Short-Record Wiener Systems with Stable-Kernel Regularization.” The release includes one-click MATLAB workflows for the 720-record principal experiment, 4,320 paired baseline and ablation fits, and a 360-record turning-point localization experiment. It also includes canonical record-level CSV files, processed summary tables, a data dictionary, and reproducibility instructions. All released fits completed successfully. The fixed random-seed base is 31000000.