add.season: Add seasonality
In jdanielnd/tsgen: Time series generator

Description Usage Arguments Value Examples

Add seasonality to the series regarding the parameters

1	add.season(tser, s.mean=1, s.sd=0.1, add=FALSE)

`tser`	time series which seasonality will be added
`s.mean`	mean of the seasonality. If it's not additive, i.e., it's multiplicative, it's recommended to be 1.
`s.sd`	standard deviation of seasonality.
`add`	TRUE or FALSE depending on whether the seasonality is additive or not. If it's not additive, it will be multiplicative.

returns the time series with seasonality

set.seed(123)
kp <- c(100,110,140,120,90)
bs <- basic.series(kp, start=c(2008,1))
add.season(bs)
add.season(bs, s.sd=0.3)
add.season(bs, s.mean=0,s.sd=10,add=TRUE)