absorbance_spct

spct

waveband or list of waveband objects or a numeric vector of
length two. The waveband(s) determine the region(s) of the spectrum that
are summarized. If a numeric range is supplied a waveband object is
constructed on the fly from it.

w.band

character string One of "average" or "mean", "total",
"contribution", "contribution.pc", "relative" or "relative.pc"

quantity

logical Flag if wavebands crossing spectral data boundaries
are trimmed or ignored

wb.trim

logical Flag indicating whether to use hinges to reduce
interpolation errors

use.hinges

This function returns the mean absorbance for a given
waveband of a absorbance spectrum.

internal

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. This package is part of the
'r4photobiology' suite, Aphalo P. J. (2015) <doi:10.19232/uv4pb.2015.1.14>.

absorbance_spct: Calculate absorbance from spectral absorbance.

Description

Usage

Arguments