transmittance: Transmittance

Description

Summary transmittance for supplied wavebands from filter or object spectrum.

Usage

transmittance(spct, w.band, quantity, wb.trim, use.hinges, ...)
"transmittance"(spct, w.band, quantity, wb.trim, use.hinges, ...)
"transmittance"(spct, w.band = NULL, quantity = "average", wb.trim = getOption("photobiology.waveband.trim", default = TRUE), use.hinges = getOption("photobiology.use.hinges", default = NULL), ...)
"transmittance"(spct, w.band = NULL, quantity = "average", wb.trim = getOption("photobiology.waveband.trim", default = TRUE), use.hinges = getOption("photobiology.use.hinges", default = NULL), ...)
"transmittance"(spct, w.band = NULL, quantity = "average", wb.trim = getOption("photobiology.waveband.trim", default = TRUE), use.hinges = getOption("photobiology.use.hinges", default = NULL), ..., idx = !is.null(names(spct)))
"transmittance"(spct, w.band = NULL, quantity = "average", wb.trim = getOption("photobiology.waveband.trim", default = TRUE), use.hinges = getOption("photobiology.use.hinges", default = NULL), ..., idx = !is.null(names(spct)))

Arguments

spct

an R object

w.band

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.

quantity

character

wb.trim

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

use.hinges

logical Flag indicating whether to use hinges to reduce interpolation errors

...

other arguments

idx

logical whether to add a column with the names of the elements of spct

Value

A numeric vector with no change in scale factor

Methods (by class)

default: Default method
filter_spct: Method for filter spectra
object_spct: Method for object spectra
filter_mspct: Calculates transmittance from a filter_mspct
object_mspct: Calculates transmittance from a object_mspct

Examples

Run this code

transmittance(polyester.spct, waveband(c(280, 315)))
transmittance(polyester.spct, waveband(c(315, 400)))
transmittance(polyester.spct, waveband(c(400, 700)))

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