spc-spline: Spectral smoothing by splines

In hyperSpec: Work with Hyperspectral Data, i.e. Spectra + Meta Information (Spatial, Time, Concentration, ...)

Spectral smoothing by splines

Description

Smoothing splines

Usage

spc.smooth.spline(spc, newx = wl(spc), ...)

Arguments

spc	hyperSpec object
newx	wavelengh axis to interpolate on
...	further parameters handed to smooth.spline

Details

Spectral smoothing by splines

Value

hyperSpec object containing smoothed spectra

Note

This function is still experimental

Author(s)

Claudia Beleites

See Also

spc.loess

smooth.spline

Examples

p <- paracetamol [,,2200 ~ max]
plot (p, col = "gray")
smooth <- spc.smooth.spline (p [,, c (2200 ~ 2400, 2500 ~ 2825, 3150 ~ max)],
                             wl (paracetamol [,, 2200 ~ max]),
                             df = 4, spar = 1)
plot (smooth, col = "red", add = TRUE)

plot (p - smooth)

hyperSpec documentation built on May 29, 2024, 7:28 a.m.