This dataset contains the numerical results used in the paper: "Finite-size scaling of positivity thresholds in Gram-type operators". Included:- lambda_min scans (Figure 1)- eta*(L) scaling data (Figure 2)- Poisson control data- GUE control data All data were generated using the computational pipeline described in the paper. The dataset is provided as a compressed archive containing all files required for reproducing the numerical results.