date_seasons: Get the begin and end dates of seasons in seasonal time...

In Issoufou-Liman/growingSeason: Estimating growing season metrics from seasonal data

Description

Getting the begin and end dates of seasons in seasonal time series such as rainfall data. When the rainy season is bimodal, for instance, the function detect the 2 seasons first, then return the begin and end dates of each.

Usage

date_seasons(x, ...)

## Default S3 method:
date_seasons(x, ...)

## S3 method for class 'seasons'
date_seasons(x, ...)

Arguments

x	A numeric vector or an object of class seasons
...	further argument to be passed to the class constructor function seasons (). Ignored when x is of class seasons.

Details

detecting the dates of the biginning and the end of the season is more likely to yield meaningful result when x has been derived via get_phases (x,..., returned = 'seasonal') which rescales the data to make more consistant ordering.

Value

The beginning and the end of the season.

Author(s)

Issoufou Liman

Issoufou Liman

See Also

phases, get_phases

Examples

nam<- seq.Date(from = as.Date('2016-01-01'), to = as.Date ('2018-12-31'), by = 16)
dy11 <- c(1.40, 1.00, 1.50, 2.00, 5.00, 3.00, 1.00, 0.76, 2.00, 1.00, 3.50, 3.00, 1.50)
dy12 <- c(1.30, 1.10, 1.40, 2.01, 5.50, 2.80, 1.01, 1, 2.03, 1.09, 3.10, 3.00, 1.50)
dy1 <- c(dy11, dy12)
names(dy1) <- nam[1:length(dy1)]

y <- get_phases (dy1, ts_freq = 12)
z <- lapply(y, date_seasons)

Issoufou-Liman/growingSeason documentation built on Jan. 23, 2020, 3:43 a.m.