clip_wl: Clip head and/or tail of a spectrum

In photobiology: Photobiological Calculations

Clip head and/or tail of a spectrum

Description

Clip head and tail of a spectrum based on wavelength limits, no interpolation used at range boundaries.

Usage

clip_wl(x, range, ...)

## Default S3 method:
clip_wl(x, range, ...)

## S3 method for class 'generic_spct'
clip_wl(x, range = NULL, ...)

## S3 method for class 'generic_mspct'
clip_wl(x, range = NULL, expand = TRUE, ...)

## S3 method for class 'waveband'
clip_wl(x, range = NULL, ...)

## S3 method for class 'list'
clip_wl(x, range = NULL, ...)

Arguments

x	an R object.
range	a numeric vector of length two, or any other object for which function range() will return range of wavelengths expressed in nanometres.
...	ignored (possibly used by derived methods).
expand	logical Expand or not members containing spectra in long form.

Value

a spectrum object or a collection of spectral objects of the same class as x with wavelength heads and tails clipped.

Methods (by class)

• clip_wl(default): Default for generic function

• clip_wl(generic_spct): Clip an object of class "generic_spct" or derived.

• clip_wl(generic_mspct): Clip an object of class "generic_mspct" or derived.

• clip_wl(waveband): Clip an object of class "waveband".

• clip_wl(list): Clip a list (of objects of class "waveband").

Note

The condition tested is wl >= range[1] & wl < (range[2] + 1e-13).

See Also

Other trim functions: trim_spct(), trim_waveband(), trim_wl()

Examples

clip_wl(sun.spct, range = c(400, 500))
clip_wl(sun.spct, range = c(NA, 500))
clip_wl(sun.spct, range = c(400, NA))

photobiology documentation built on June 8, 2025, 10:14 a.m.