photobiology (version 0.11.4)

interpolate_spectrum: Calculate spectral values at a different set of wavelengths

Description

Interpolate/re-express spectral irradiance (or other spectral quantity) values at new wavelengths values. This is a low-level function operating on numeric vectors and called by higher level functions in the package, such as mathematical operators for classes for spectral data.

Usage

interpolate_spectrum(w.length.in, s.irrad, w.length.out, fill = NA, ...)

Value

a numeric vector of interpolated spectral values.

Arguments

w.length.in

numeric vector of wavelengths (nm).

s.irrad

a numeric vector of spectral values.

w.length.out

numeric vector of wavelengths (nm).

fill

a value to be assigned to out of range wavelengths.

...

additional arguments passed to spline().

See Also

splinefun.

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(), 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()

Examples

my.w.length <- 300:700
with(sun.data, interpolate_spectrum(w.length, s.e.irrad, my.w.length))