smooth(r: ranvar) 🡒 ranvar, pure function
Returns a smooth variant of the original ranvar to mitigate the overfitting issue.
table T = with // observation [| as Obs |] [| 1 |] [| 0 |] [| 0 |] [| 2 |] show scalar "ranvar(T.Obs)" a1c3 with ranvar(T.Obs) show scalar "smooth(ranvar(T.Obs))" a4c6 with smooth(ranvar(T.Obs))
This function is typically intended to smooth ranvars produced through the
ranvar aggregators over a handfew observations, and mitigate the most obvious artefacts caused by the limited set of observations.