feems {albatross}

Synthetic fluorescence excitation-emission matrices and absorbance spectra

Description

This dataset consists of twelve fluorescence and absorbance spectra simulated from three trilinear components, with scattering signal added and divided by a correction factor to simulate inner filter effect.

Usage

data("feems")

Format

feems

A named list of 12 feem objects containing fluorescence data measured with excitation wavelengths between 230 nm and 350 nm (with a step of 2 nm) and emission wavelengths between 240 nm and 435 (with a step of 5 nm).

cube

A 12-sample feemcube object consisting of of 32 by 10 FEEMs measured at the same wavelength range as above with inner filter effect corrected.

absorp

A 12-element named list containing absorbance spectra measured between 230 and 450 nm in 1 cm cells. Each element of the list is a two-column matrix. The first column contains the wavelengths and the second column contains the absorbance values.

Examples

  data(feems)
  plot(cube)
  plot(feems$a)
  matplot(
    absorp[[1]][,1],
    sapply(absorp, function(x) x[,2]),
    type = 'l', lty = 1
  )