D2_spectrum: Calculate deuterium lamp output spectrum from fitted constants
Description
Calculate values by means of a nth degree polynomial from
user-supplied constants (for example from a lamp calibration certificate).
Usage
D2_spectrum(w.length, k = photobiology::D2.UV653, fill = NA_real_)
Value
a dataframe with four numeric vectors with wavelength values
(w.length), energy and photon irradiance (s.e.irrad, s.q.irrad) depending
on the argument passed to unit.out (s.irrad).
Arguments
w.length
numeric vector of wavelengths (nm) for output
k
a polynom:polynomial object with n constants for the polynomial
fill
if NA, no extrapolation is done, and NA is returned for
wavelengths outside the range 190 nm to 450 nm. If NULL then the tails are
deleted. If 0 then the tails are set to zero, etc. NA is default.