loess

Curve fit using local regression.

Contents

Syntax

g = loess(x,y,newx,alpha,lambda,robustFlag)

Description

apply loess curve fit -- nonparametric regression
x,y  data points
newx,g  fitted points
alpha  smoothing  typically 0.25 to 1.0
lambda  polynomial order 1 or 2
if robustFlag is present, use bisquare
for loess info, refer to Cleveland, Visualizing Data

See also

bisquare