PhenoKl | R Documentation |
Phenology extraction in Inflection method (Zhang)
PhenoKl( fFIT, t = NULL, analytical = FALSE, smoothed.spline = FALSE, IsPlot = TRUE, show.legend = TRUE, ... )
fFIT |
object return by |
t |
|
analytical |
If true, |
smoothed.spline |
Whether apply |
IsPlot |
whether to plot? |
show.legend |
whether show figure lelend? |
... |
Other parameters will be ignored. |
A numeric vector, with the elements of:
Greenup
, Maturity
, Senescence
, Dormancy
.
Zhang, X., Friedl, M. A., Schaaf, C. B., Strahler, A. H., Hodges, J. C. F. F., Gao, F., … Huete, A. (2003). Monitoring vegetation phenology using MODIS. Remote Sensing of Environment, 84(3), 471–475. doi: 10.1016/S0034-4257(02)00135-9
# `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)
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.