This function gives the photons:energy ratio between for one given waveband of a radiation spectrum.
Usage
photons_energy_ratio(
w.length,
s.irrad,
w.band = NULL,
unit.in = "energy",
check.spectrum = TRUE,
use.cached.mult = FALSE,
use.hinges = getOption("photobiology.use.hinges", default = NULL)
)
Arguments
- w.length
numeric vector of wavelength (nm).
- s.irrad
numeric vector of spectral irradiances in [\(W\,m^{-2}\,nm^{-1}\)] or [\(mol\,s^{-1}\,sm^{-2}\,nm^{-1}\)] as indicated by the argument pased to
unit.in
.- w.band
waveband object.
- unit.in
character Allowed values
"energy"
, and"photon"
, or its alias"quantum"
.- check.spectrum
logical Flag telling whether to sanity check input data, default is TRUE.
- use.cached.mult
logical Flag telling whether multiplier values should be cached between calls.
- use.hinges
logical Flag indicating whether to insert "hinges" into the spectral data before integration so as to reduce interpolation errors at the boundaries of the wavebands.
See also
Other low-level functions operating on numeric vectors.:
as_energy()
,
as_quantum_mol()
,
calc_multipliers()
,
div_spectra()
,
energy_irradiance()
,
energy_ratio()
,
insert_hinges()
,
integrate_xy()
,
interpolate_spectrum()
,
irradiance()
,
l_insert_hinges()
,
oper_spectra()
,
photon_irradiance()
,
photon_ratio()
,
prod_spectra()
,
s_e_irrad2rgb()
,
split_energy_irradiance()
,
split_photon_irradiance()
,
subt_spectra()
,
sum_spectra()
,
trim_tails()
,
v_insert_hinges()
,
v_replace_hinges()
Examples
# photons:energy ratio
with(sun.data, photons_energy_ratio(w.length, s.e.irrad, new_waveband(400,500)))
#> [1] 3.778889e-06
# photons:energy ratio for whole spectrum
with(sun.data, photons_energy_ratio(w.length, s.e.irrad))
#> [1] 4.664578e-06