R: Calculate transmittance from spectral transmittance.

transmittance_spct {photobiology} | R Documentation

## Calculate transmittance from spectral transmittance.

### Description

Mean transmittance for one or more wavebands of a filter or object spectrum.

### Usage

    transmittance_spct(spct, w.band, quantity, wb.trim, use.hinges)

### Arguments

`spct` | an object of class "generic_spct".
`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 string One of "total", "average" or "mean", "contribution", "contribution.pc", "relative" or "relative.pc".
`wb.trim` | logical Flag indicating if wavebands crossing spectral data boundaries are trimmed or ignored.
`use.hinges` | 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.

### Value

a single numeric value

### Note

The last parameter controls speed optimization. The defaults should be suitable in most cases. Only the range of wavelengths in the wavebands is used and all BSWFs are ignored.

[Package photobiology version 0.9.21 Index]