| PhenoDeriv {greenbrown} | R Documentation |
This function implements the derivative method for phenology. This is rather an internal function; please use the function Phenology to apply this method.
PhenoDeriv(x, min.mean = 0.1, calc.pheno = TRUE, plot = FALSE,
...)
x |
seasonal cycle of one year |
min.mean |
minimum mean annual value in order to calculate phenology metrics. Use this threshold to suppress the calculation of metrics in grid cells with low average values |
calc.pheno |
calculate phenology metrics or return NA? |
plot |
plot results? |
... |
further arguments (currently not used) |
The function returns a vector with SOS, EOS, LOS, POP, MGS, RSP, RAU, PEAK, MSP and MAU.
Matthias Forkel <matthias.forkel@geo.tuwien.ac.at> [aut, cre]
data(ndvi) plot(ndvi) # perform time series preprocessing from first year of data x <- TsPP(ndvi, interpolate=TRUE)[1:365] plot(x) # calculate phenology metrics for first year PhenoDeriv(x, plot=TRUE)