photobiology (version 0.9.6)

qe_ratio: Photon:energy ratio

Description

This function returns the photon to energy ratio for each waveband of a light source spectrum.

Usage

qe_ratio(spct, w.band, wb.trim, use.cached.mult, use.hinges, ...)

## S3 method for class 'default':
qe_ratio(spct, w.band, wb.trim, use.cached.mult, use.hinges,
  ...)

## S3 method for class 'source_spct':
qe_ratio(spct, w.band = NULL,
  wb.trim = getOption("photobiology.waveband.trim", default = TRUE),
  use.cached.mult = FALSE, use.hinges = getOption("photobiology.use.hinges",
  default = NULL), ...)

## S3 method for class 'source_mspct':
qe_ratio(spct, w.band = NULL,
  wb.trim = getOption("photobiology.waveband.trim", default = TRUE),
  use.cached.mult = FALSE, use.hinges = getOption("photobiology.use.hinges",
  default = NULL), ..., idx = !is.null(names(spct)))

Arguments

spct

source_spct

w.band

waveband or list of waveband objects

wb.trim

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

use.cached.mult

logical Flag telling whether multiplier values should be cached between calls

use.hinges

logical Flag telling whether to use hinges to reduce interpolation errors

...

other arguments (possibly ignored)

idx

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

Value

• A vector of numeric values giving number of moles of photons per Joule for each waveband, with name attribute set to the name of each waveband unless a named list of wavebands is supplied in which case the names of the list elements are used, with "q:e" prepended..

Methods (by class)

• default: Default for generic function
• source_spct: Method forsource_spctobjects
• source_mspct: Calculates photon:energy ratio from asource_mspctobject.

See Also

Other photon and energy ratio functions: e_ratio, energy_ratio, eq_ratio, photon_ratio, photons_energy_ratio, q_ratio

Examples

qe_ratio(sun.spct, new_waveband(400,700))