fitLoess: Fit a loess curve

In jpkeller/spconf: Computing Scales of Spatial Smoothing for Confounding Adjustment

Fit a loess curve

Description

Wrapper function for fitting and predicting from loess().

Usage

fitLoess(y, x, newx = x, span = 0.5, ...)

Arguments

y	Dependent variable values
x	Independent variable values
newx	Values of x to use for prediction.
span	Controls the amount of smoothing. Passed to loess; see that function for details.
...	Additional arguments passed to loess

Value

A vector of the same length of newx

Examples

x <- seq(0, 5, length=50)
y <- cos(4*x) + rnorm(50, sd=0.5)
xplot <- seq(0, 5, length=200)
lfit <- fitLoess(y=y, x=x, newx=xplot, span=0.2)
plot(x, y)
points(xplot, lfit, type="l")

jpkeller/spconf documentation built on Oct. 20, 2024, 2 a.m.