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Plot a Wavelength Calibration

Source: R/wavelength_calibration.R
plot_wavelength_calibration.Rd

Plots the offset of each reference line (reference minus measured wavelength) against its measured wavelength, with the fitted correction of each detector segment. Lines not used are drawn as open circles and labeled with the reason.

Usage

plot_wavelength_calibration(object, title = NULL)

Arguments

object

The result of wavelength_calibration().

title

The plot title.

Value

A ggplot object.

See also

wavelength_calibration()

Examples

data(forageLIBS)
spectra <- forageLIBS[-(1:14)]
wl <- as.numeric(names(spectra))
first_detector <- spectra[seq_len(which(diff(wl) < 0)[1])]
reference <- c(`Mg I` = 285.213, `Ca II` = 317.933, `Ca II` = 393.366, `K I` = 404.414,
               `Ca I` = 422.673, `Mg I` = 518.360, `Na I` = 588.995, `Ca I` = 643.907)
cal <- wavelength_calibration(first_detector, reference)
plot_wavelength_calibration(cal)