exp.generic_spct

log.generic_spct

log10.generic_spct

log2.generic_spct

a positive number: the base with respect to which logarithms are
computed. Defaults to e=exp(1).

base


Logarithms and Exponentials for Spectra. The functions are applied to the
spectral data, not the wavelengths. The quantity in the spectrum to which the
function is appled depends on the class of <code>x</code> and the current value of
output options


Definitions of classes, methods, operators and functions for use in
'photobiology' and radiation meteorology and climatology. Calculation of
effective (weighted) and not-weighted 'irradiances'/doses, 'fluence' rates,
'transmittance', 'reflectance', 'absorptance', 'absorbance' and diverse
ratios and other derived quantities from spectral data. Local 'maxima' and
'minima'. Conversion between energy- and photon-based units. Wavelength
interpolation. Astronomical calculations related solar angles and day
length. Colours and vision.

log: Logarithms and Exponentials

Description

Usage

Arguments

See Also