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Changelog

Source: NEWS.md

datey 0.1.0

Initial CRAN release.

  • datey and durationy represent dates and durations on a fixed-precision annual grid, with exact, associative arithmetic (+, -, comparisons, mean(), range(), etc.).
  • start_day(), mid_day(), end_day() and from_ymdf() map calendar year/month/day (and day-fraction) to a datey; to_ymdf() and the as_*_day()/is_*_day() helpers provide the reverse mapping and checks.
  • Conversion to and from Date, POSIXct, POSIXlt, and to/from years via as.double()/as.integer().
  • NA_datey_, NA_durationy_ and NA_datey_interval_ provide type-correct NAs, with full is.na()/anyNA() support.
  • Text parsing and formatting for datey, durationy and datey_interval.
  • pillar_shaft() methods for readable printing of datey/durationy/ datey_interval columns in tibbles.
  • is_leap_year() for integer years and dateys.
  • datey_interval (constructed with datey_interval() or %to%) represents a half-open [start, end) date interval, with %includes%, is_collapsed(), is_proper(), intersection via &, and the constants all_of_time and NA_datey_interval_.