Estimated partial correlation matrices of patch data from within the sunspots and the magnetic fragments using 3 × 3 (left) and 5 × 5 (right) patches. The theoretical thresholds (Hero & Rajaratnam 2011) for significance to attain a 0.05 false alarm rate are 0.0070 and 0.0014 for within the sunspots and magnetic fragments, respectively, when using a 3 × 3 patch. For the 5 × 5 patch, the thresholds are 0.0080 and 0.0016, respectively. Statistically insignificant values are set to zero.