TrendPoly: Trend estimation based on a 4th order polynomial

In greenbrown: Land Surface Phenology and Trend Analysis

Description

The function computes a trend based on a 4th order polynomial function.

Usage

TrendPoly(Yt, ...)

Arguments

Yt	univariate time series of class ts
...	additional arguments (currently not used)

Value

The function returns a list of class "Trend".

Author(s)

Matthias Forkel <[e-mail]> [aut, cre]

See Also

stl

Examples

# calculate trend on mean annual NDVI values
trd <- TrendPoly(ndvi)
trd
plot(trd)

greenbrown documentation built on Dec. 18, 2020, 3:02 p.m.