D2_spectrum: Calculate deuterim lamp output spectrum from fitted constants

Description Usage Arguments Value Note Examples

View source: R/d2.spectrum.R

Description

Calculate values by means of a nth degree polynomial from user-supplied constants (for example from a lamp calibartion certificate).

Usage

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D2_spectrum(w.length, k = photobiology::D2.UV653, fill = NA_real_)

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.

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).

Note

This is function is valid for wavelengths in the range 180 nm to 495 nm, for wavelengths outside this range NAs are returned.

Examples

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2
D2_spectrum(200)
D2_spectrum(170:220)

photobiology documentation built on Aug. 27, 2017, 5:05 p.m.