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, ...)
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
an R object
not used
logical Flag indicating if the returned object should be of
class response_spct instead of numeric.
Pfr_Ptot(default): Default for generic function
Pfr_Ptot(numeric): Specialization for numeric
Pfr_Ptot(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). tools:::Rd_expr_doi("10.1007/978-94-011-1884-2_10")