Pointwise contour uncertainty versus approximate contours

Prediction-support classes and contour-uncertainty bands answer different questions. Support classes describe monitoring geometry and finite prediction. ps_contour_uncertainty() uses retained realizations for empirical crossings or an explicitly accepted pointwise Gaussian assumption. Its band is pointwise, not a simultaneous confidence region. Approximate support contours are not statistical confidence contours.

band <- ps_contour_uncertainty(u, levels=seq(164,172,2),
                               method="empirical_crossing")