A method implemented for objects of different classes.
Pfr_Ptot(x, ...)# S3 method for default
Pfr_Ptot(x, ...)
# S3 method for numeric
Pfr_Ptot(x, spct.out = length(x) > 20, ...)
# S3 method for source_spct
Pfr_Ptot(x, ...)
an R object
not used
logical Flag indicating if the returned object should be of
class response_spct instead of numeric.
If x is numeric, giving wavelengths (nm), a vector of
numeric values giving the unitless photon ratio at each wavelength or a
generic_spct object with the wavelength values sorted in ascending
order and the corresponding Pfr_Ptot values in column
s.q.response.
If x is a source_spct object, a single numeric value
giving the unitless photon ratio
default: Default for generic function
numeric: Specialization for numeric
source_spct: Specialization for source_spct
Calculate phytochrome photoequilibrium from spectral (photon) irradiance
Mancinelli, A.L. (1994) The physiology of phytochrome action. In Photomorphogenesis in plants, 2nd edition. R.E. Kendrick and G.H.M. Kronenberg, eds. Kluwer Academic Publishers, Dordrecht, pp. 211-269. ISBN 978-0-7923-2551-2 (print), 978-94-011-1884-2 (on-line). DOI 10.1007/978-94-011-1884-2_10