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Update the internal history_tbl object
Eliminate testthat tests that get data from the NOAA server to consistently pass CRAN checks
Complete rewrite of package.
Package now has the main function get_met_data(),
where get_station_metadata() and
station_coverage() provide information on the station and
which additional data fields they have reported on.
The get_met_data() function can bucketize
observations so that even hourly observations are provided.
Instead of needing to provide a range of years, any vector of
years can be provided to
get_met_data().
The visibility parameter is now provided in the
standard set of station observations.
A more reliable method of getting the local times for each station has been implemented.
Meteorological data files can be collected in a directory after download for later reuse.
Additional data fields, when requested, are processed much more quickly than in previous releases.
Tibbles are now returned instead of data frames.
A pkgdown site has been generated.
Removes the get_tz_offset() function, the large
shapefile object, and the dependencies on the
lubridate, sp, and
proj4 packages.
Greater use of dplyr functions to greatly increase processing speed.
Functions are resilient to missing years of data within year ranges provided.
Added function get_ncdc_station_info() to obtain
data frame of all known met stations, and, to filter list of stations by
geographic bounding box and/or by years of available data.
Added function select_ncdc_station() to take the
data frame produced by get_ncdc_station_info() and aid in
obtaining a selection of a single station; the resulting identifier
string can be passed to get_ncdc_station_data() to fetch
data for the selected station.
get_ncdc_station_data() (to fetch
data and create a data frame) and helper function
get_tz_offset() (to determine time zone offset and correct
times to local time).These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.