Module ecdf 

Structs

StatEcdf

Empirical cumulative distribution function. Sorts x values and assigns y = rank / n.

StatEcdfBand

ECDF with a simultaneous Dvoretzky–Kiefer–Wolfowitz confidence band: F̂(x) ± ε, ε = √(ln(2 / (1 − level)) / (2n)), clamped to [0, 1]. Output x (±Inf padded, as StatEcdf), y, ymin, ymax — draw it with geom_stepribbon (see GGPlot::stat_ecdf_band).