sd_estimate_gasser_etal: Estimate homoskedastic standard deviation from nonparamatric
regression.
Description
Estimate homoskedastic standard deviation from nonparamatric
regression.
Usage
sd_estimate_gasser_etal(x)
Value
An estimate of the standard deviation
Details
Uses formula (3) from Brown and Levine (2007), Annals of
Statistics, who attribute it to Gasser et al.