nscosinor.initial function

Initial Values for Non-stationary Cosinor

Creates initial values for the non-stationary cosinor decomposition nscosinor. For internal use only.

Arguments

• data: a data frame.
• response: response variable.
• tau: vector of smoothing parameters, tau[1] for trend, tau[2] for 1st seasonal parameter, tau[3] for 2nd seasonal parameter, etc. Larger values of tau allow more change between observations and hence a greater potential flexibility in the trend and season.
• lambda: distance between observations (lambda=1/12 for monthly data, default).
• n.season: number of seasons.

Author(s)

Adrian Barnett a.barnett@qut.edu.au