loess.smooth
Smooth Loess Curve

### Description

Returns a list of values at which the loess curve is evaluated.

### Usage

    loess.smooth(x, y, span = 2/3, degree = 1, family = c("symmetric",
        "gaussian"), evaluation = 50, ...)

### Arguments

x | abscissas of points to be plotted on scatterplot.
y | ordinates of points to be plotted on scatterplot. If a point has NA for either coordinate, it will be omitted from the calculations.
span | the smoothing parameter.
degree | the overall degree of the locally-fitted polynomial. 1 is locally-linear fitting and 2 is locally-quadratic fitting.
family | the value is "gaussian" or "symmetric". If "gaussian", local-fitting methods are used. If "symmetric" (the default), local fitting is used together with a robustness feature that guards against distortion by outliers.
evaluation | the number of values at which the loess curve is evaluated.
... | additional arguments to be passed to loess.control.

Value
returns a list with two components:

x | the x values at which the loess curve was evaluated.
y | the smoothed values.

See Also
loess.
Examples

    x <- runif(100, -3, 3)
    eps <- rnorm(100, 0, .1)
    y <- sin(x) + eps
    loess.smooth(x, y, span = 0.5, degree = 2)

Package stats version 6.1.5-18
Package Index