Calculates tide height at specified stations based on the supplied harmonics object.
A character vector of stations to match - treated as regular expressions.
An integer of the number of minutes between tide heights
A Date of the start of the period of interest
A Date of the end of the period of interest
A string of the time zone.
The harmonics object.
A data frame of the tide heights in m by the number of minutes for each station from from to to.