Corbae-Ouliaris Frequency Domain Filtering R package corbouli version 0.1.5 CRAN Task View: TimeSeries (https://CRAN.R-project.org/view=TimeSeries) Corbae-Ouliaris frequency domain filtering. According to Corbae and Ouliaris (2006) <doi:10.1017/CBO9781139164863.008>, this is a solution for extracting cycles from time series, like business cycles etc. when filtering. This method is valid for both stationary and non-stationary time series. Software Imports: stats Suggests: Rfast, Rfast2, knitr, rmarkdown, testthat (>= 3.0.0) Christos Adam <econp266@econ.soc.uoc.gr> Comprehensive R Archive Network (CRAN) Christos Adam [aut, cre] (ORCID: <https://orcid.org/0009-0003-3244-7034>) GPL-3 2025-06-03 application/tgz https://CRAN.R-project.org/package=corbouli doi:10.32614/CRAN.package.corbouli