Version 1.1 2014-11-24 (Tom Cox) Minor bugs fixed. Vignette added 2014-11-24 (Tom Cox) E-mail address changed Version 1.2 2016-09-15 (Tom Cox) Minor bug fixed. Version 2.0 2017-08-24 (Lennert Schepers and Tom Cox) Added summary.Tides 2017-08-24 (Tom Cox and Lennert Schepers) Added RemoveGaps 2017-08-24 (Lennert Schepers) Minor bugs fixed Version 2.1 2018-08-02 (Tom Cox) Bugs fixed related to gaps in series Version 2.1.1 2020-11-30 (Tom Cox) "Per cycle" statistics in print.Tides calculated per total number of tidal cycles in observations