title: Procedures for numerical analysis of circadian rhythms.
abstract: This article reviews various procedures used in the analysis of circadian rhythms at the populational, organismal, cellular and molecular levels. The procedures range from visual inspection of time plots and actograms to several mathematical methods of time series analysis. Computational steps are described in some detail, and additional bibliographic resources and computer programs are listed.
authors.affiliation: Circadian Rhythm Laboratory, University of South Carolina, SC, USA.
authors.forename: Roberto
authors.initials: R
authors.lastname: Refinetti
authors.forename: Germaine
authors.initials: G
authors.lastname: Cornélissen
authors.forename: Franz
authors.initials: F
authors.lastname: Halberg
keywords: Biostatistics; chronobiology; chronomics; circadian rhythm; time series analysis