PhotoThermal Time model

Source: R/phenology_models.R

as defined in Basler et al. 2016 (Agr. For. Meteorlogy) with a sigmoidal temperature response (Kramer 1994)

PTTs(par, data)

Arguments

par

a vector of parameter values, this is functions specific

data

input data (see reference for detailed description), data should be formatted using flat_format()

Value

raster or vector with estimated phenophase timing (in DOY)

Examples


if (FALSE) { # \dontrun{
estimate <- PTTs(data = data, par = par)
} # }