photons_energy_ratio {photobiology} | R Documentation |
Photon:energy ratio
Description
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.band |
waveband object. |
unit.in |
character Allowed values |
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. |
Value
A single numeric value giving the ratio moles-photons per Joule.
Note
The default for the w.band
parameter is a waveband covering
the whole range of w.length
.
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)))
# photons:energy ratio for whole spectrum
with(sun.data, photons_energy_ratio(w.length, s.e.irrad))