Spectral weights
Calculate multipliers for selecting a range of wavelengths and optionally applying a biological spectral weighting function (BSWF) and wavelength normalization. This function returns numeric multipliers that can be used to select a waveband and apply a weight.
calc_multipliers( w.length, w.band, unit.out = "energy", unit.in = "energy", use.cached.mult = FALSE, fill = 0 )
w.length |
numeric vector of wavelengths (nm). |
w.band |
waveband object. |
unit.out |
character A string: "photon" or "energy", default is "energy". |
unit.in |
character A string: "photon" or "energy", default is "energy". |
use.cached.mult |
logical Flag indicating whether multiplier values should be cached between calls. |
fill |
numeric If |
a numeric vector of multipliers of the same length as w.length.
Other low-level functions operating on numeric vectors.:
as_energy(),
as_quantum_mol(),
div_spectra(),
energy_irradiance(),
energy_ratio(),
insert_hinges(),
integrate_xy(),
interpolate_spectrum(),
irradiance(),
l_insert_hinges(),
oper_spectra(),
photon_irradiance(),
photon_ratio(),
photons_energy_ratio(),
prod_spectra(),
s_e_irrad2rgb(),
split_energy_irradiance(),
split_photon_irradiance(),
subt_spectra(),
sum_spectra(),
trim_tails(),
v_insert_hinges(),
v_replace_hinges()
with(sun.data, calc_multipliers(w.length, new_waveband(400,700),"photon")) with(sun.data, calc_multipliers(w.length, new_waveband(400,700),"photon"), use.cached.mult = TRUE)
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