Supplementary data and model implementation for a physics-guided multigene symbolic-regression model of stress-dependent unsaturated soil permeability

This repository contains the supplementary materials supporting the development and evaluation of a physics-guided multigene symbolic-regression model for predicting stress-dependent unsaturated soil permeability. The deposited files include the compiled soil-property information, training and held-out testing databases, complete symbolic model equations, and an automated spreadsheet calculator for applying the proposed model.