fshift_spct

generic_spct The spectrum to be normalized

spct

an R object on which range() returns a vector of length 2, with
min annd max wavelengths (nm)

range

character The name of the variable to fscale

col.names

function A summary function to be applied to <code>spct</code>

These function returns a spectral object of the same class as the one
supplied as argument but with the spectral data on a shifted scale.

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.

fshift_spct: fshift a spectrum

Description

Usage

Arguments

Value