PhenoTrs | R Documentation |
Phenology extraction in Threshold method (TRS)
PhenoTrs( x, t = NULL, approach = c("White", "Trs"), trs = 0.5, asymmetric = TRUE, IsPlot = TRUE, ... ) ## S3 method for class 'fFIT' PhenoTrs(x, t = NULL, ...) ## Default S3 method: PhenoTrs( x, t = NULL, approach = c("White", "Trs"), trs = 0.5, asymmetric = TRUE, IsPlot = TRUE, ... )
x |
numeric vector, or |
t |
|
approach |
to be used to calculate phenology metrics. 'White' (White et al. 1997) or 'Trs' for simple threshold. |
trs |
threshold to be used for approach "Trs", in (0, 1). |
asymmetric |
If true, background value in spring season and autumn season is regarded as different. |
IsPlot |
whether to plot? |
... |
other parameters to PhenoPlot |
PhenoDeriv()
, PhenoGu()
, PhenoKl()
# `doubleLog.Beck` simulate vegetation time-series t <- seq(1, 365, 8) tout <- seq(1, 365, 1) par = c( mn = 0.1 , mx = 0.7 , sos = 50 , rsp = 0.1 , eos = 250, rau = 0.1) y <- doubleLog.Beck(par, t) methods <- c("AG", "Beck", "Elmore", "Gu", "Zhang") # "Klos" too slow fit <- curvefit(y, t, tout, methods) x <- fit$model$AG # one model par(mfrow = c(2, 2)) PhenoTrs(x) PhenoDeriv(x) PhenoGu(x) PhenoKl(x)
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