absorptance_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", "contribution",
"contribution.pc", "relative" or "relative.pc"

quantity

logical if TRUE wavebands crossing spectral data boundaries
are trimmed, if FALSE, they are discarded

wb.trim

logical indicating whether to use hinges to reduce
interpolation errors

use.hinges

character one of "long", "default", "short" or "none". Used to
select the type of names to assign to returned value.

naming

other arguments (possibly used by derived methods).

This function returns the summary absorptance for a given waveband of a
<code>object_spct</code> object

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: peaks,
valleys and spikes. 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>.

absorptance_spct: Calculate absorptance from spectral absorptance.

Description

Usage

Arguments