Apply a Savitzky-Golay smoothing filter — filter_savgol • HSItools

Smooth data with a Savitzky-Golay smoothing filter using sgolayfilt.

Usage

filter_savgol(
  raster,
  p = 3,
  n = p + 13 - p%%2,
  m = 0,
  ts = 1,
  extent = NULL,
  filename = NULL,
  extension = NULL
)

Arguments

raster: a terra SpatRaster of normalized data
p: filter order.
n: filter length (must be odd).
m: return the m-th derivative of the filter coefficients.
ts: time scaling factor.
extent: an extent or SpatVector used to subset SpatRaster. Defaults to the entire SpatRaster.
filename: NULL (default) to write automatically into products, provide full path and ext to override.
extension: character, a graphic format extension.

Value

A filtered terra SpatRaster.

See also

Other Filters: filter_median(), remove_continuum()