Answers are grounded in this paper and cite their sources.
The definition of stationary time series was first provided followed by a few examples of nonstationary time series. Statistical methods to analyze nonstationary time series was then reviewed in two categories: parametric methods and nonparametric methods. Focus was given to nonparametric methods. Spectral analysis of time series with seasonal components was discussed as a special case.
No takes yet. Share an insight, caveat, or question.
Yang et al. (2010) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: