Comparing TPS, IDW, OK, and UK

TPS, IDW, ordinary kriging, and universal kriging encode different assumptions. Request them explicitly and inspect method conditions, support, residuals, and fit objects. ps_compare_methods() ranks only within one validation design, support subset, and objective. It does not identify a universally best method, and a requested method is never silently replaced.

v <- ps_validate(points, c("TPS","IDW","OK","UK"), "spatial_block", folds=5)
ps_compare_methods(v, metric="rmse", support_subset="supported")