init_param: init_param

In phenofit: Extract Remote Sensing Vegetation Phenology

Description

Initialize parameters of double logistic function

Usage

init_param(y, t, w)

Arguments

y	input vegetation index time-series.
t	the corresponding doy(day of year) of y.
w	weights

Examples

library(phenofit)
# simulate vegetation time-series
fFUN = doubleLog.Beck
par  = c(
    mn  = 0.1,
    mx  = 0.7,
    sos = 50,
    rsp = 0.1,
    eos = 250,
    rau = 0.1)
t    <- seq(1, 365, 8)
tout <- seq(1, 365, 1)
y <- fFUN(par, t)

l_param <- init_param(y, t)

phenofit documentation built on Oct. 15, 2021, 5:09 p.m.