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Table 10
Final results obtained by the B-SPLINE, IDW, Kriging and RBF methods in the Star Challenge, sorted by decreasing P-factors.
| Rank | PSF interpolation method | P |  |
| | |||
| 1 | Basis spline (B-splines) | 13.29 | 7.53 × 10-5 |
| 2 | Inverse distance weighting (IDW) | 13.17 | 7.59 × 10-5 |
| 3 | Radial basis function (RBF) | 12.72 | 7.86 × 10-5 |
| 4 | Radial basis function (RBF thin) | 12.61 | 7.93 × 10-5 |
| 5 | Ordinary Kriging (OK) | 7.23 | 1.38 × 10-4 |
Notes. The B-splines method obtained the highest P-factor of the competition while the remaining four achieved the next highest scores.
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