R/data-specdb.R

In visa: Vegetation Imaging Spectroscopy Analyzer

#' Example data in the Spectra/SpectraDatabase format.
#'
#' A S4 data structure containing the plant spectra and nitorgen (N) content. Spectra is organized as a matrix and is stored as a slot,
#' named 'spectra'. The corresponding N content is stored in the slot 'data', which is a data.frame to be used for storing vegetation traits,
#' such as here the plant N content.
#'
#' @aliases Data-SpectraDatabase,Data-Spectra
#' @format A Spectra object with 19 rows and 4 slots (spectra, wavelength, w.unit, data).
#'
#' \describe{
#'   \item{spectra}{A matrix of plant spectral data}
#'   \item{wavelength}{A vector of wavelength for the 'spectra' data}
#'   \item{w.unit}{A character string of wavelength unit (default "nm")}
#'   \item{data}{A data.frame of vegetation traits, here plant nitrogen content}
#'   ...{currently not used}
#' }
#' @examples
#' library(visa)
#' data(NSpec.DB)
#' str(NSpec.DB)
#'
"NSpec.DB"