Package rtide. May 10, 2017

Transcription

1 Title Tide Heights Version Date Package rtide May 10, 2017 Calculates tide heights based on tide station. It includes the data for 637 US stations. The data was converted from <ftp://ftp.flaterco.com/xtide/-dwf free.tar.bz2>, which is NOAA web site data processed by David Flater for XTide. The code to calculate tide heights from the is based on XTide. URL BugReports Depends R (>= 3.3.0) Imports abind, datacheckr (>= 0.1.1), lubridate, magrittr, plyr, stringr, tidyr, tibble, utils Suggests dplyr, ggplot2, scales, testthat License GPL-3 Encoding UTF-8 LazyData true RoxygenNote NeedsCompilation no Author Joe Thorley [aut, cre], Abram Fleishman [aut], Luke Miller [aut] Maintainer Joe Thorley <joe@poissonconsulting.ca> Repository CRAN Date/Publication :21:35 UTC 1

2 2 R topics documented: brandywine is.tide_ monterey tide_datetimes tide_height tide_height_data tide_stations Index 7 brandywine Brandywine Tide Height Data High/Low Tide Predictions from brandywine Format A tbl data frame: Station The station name (chr). DateTime The date time (time). MLLW The tide height in m (dbl). Harmonics A object of class tide_ providing tidal harmonic data for US stations. Format An object of class tide_ of length 4.

3 is.tide_ 3 Details Converted from ftp://ftp.flaterco.com/xtide/-dwf free.tar.bz2, NOAA web site data processed by David Flater for XTide. is.tide_ Is tide_ Tests if object inherits from class tide_. is.tide_(x) x The object to test. monterey Monterey Tide Height Data High/Low Tide Predictions from monterey Format A tbl data frame: Station The station name (chr). DateTime The date time (time). MLLW The tide height in m (dbl).

4 4 tide_height tide_datetimes Tide Date Times Generates sequence of date times. tide_datetimes(minutes = 60L, from = as.date(" "), to = as.date(" "), tz = "PST8PDT") minutes from to tz 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. Value A POSIXct vector. Examples tide_datetimes() tide_height Tide Height Calculates tide height at specified stations based on the supplied object. tide_height(stations = "Monterey Harbor", minutes = 60L, from = as.date(" "), to = as.date(" "), tz = "UTC", = rtide::)

5 tide_height_data 5 stations minutes from to tz 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 object. Value A tibble of the tide heights in m by the number of minutes for each station from from to to. tide_height_data Tide Height Data Calculates tide height at specified stations at particular date times based on the supplied object. tide_height_data(data, = rtide::) data A data frame with the columns Station and DateTime. The object. Value A tibble of the tide heights in m.

6 6 tide_stations tide_stations Tide Stations Gets vector of matching stations. tide_stations(stations = ".*", = rtide::) stations A character vector of stations to match - treated as regular expressions. The object.

7 Index Topic datasets brandywine, 2, 2 monterey, 3 brandywine, 2, 2 is.tide_, 3 monterey, 3 tide_datetimes, 4 tide_height, 4 tide_height_data, 5 tide_stations, 6 7