reflectance_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 "total", "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 Flag indicating whether to insert "hinges" into the
spectral data before integration so as to reduce interpolation errors at
the boundaries of the wavebands.

use.hinges

This function returns the mean reflectance for a given waveband and a
reflectance 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>.

reflectance_spct: Calculate reflectance from spectral reflectance

Description

Usage

Arguments

Value