normalized_diff_ind

spct

waveband objects The waveband determine the
region of the spectrum used in the calculations

plus.w.band

minus.w.band

function used for integration taking spct as first argument and a
list of wavebands as second argument.

This function returns a normalized difference index value for an arbitrary
pair of wavebands.

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.

normalized_diff_ind: Calculate a normalized index.

Description

Usage

Arguments

Value