.time_units             Time units
age_years               Accurate and efficient age calculation
arithmetic_mean         Unweighted & weighted arithmetic, geometric and
                        harmonic mean
asc                     Helpers to sort variables in ascending or
                        descending order
calendar                Create a table of common time units from a date
                        or datetime sequence.
cpp_which               Efficient alternative to 'which()'
crossed_join            A 'do.call()' and 'data.table::CJ()' method
duplicate_rows          Find duplicate rows
edf                     Grouped empirical cumulative distribution
                        function applied to data
farrange                A 'collapse' version of 'dplyr::arrange()'
fcount                  A fast replacement to dplyr::count()
fdistinct               Find distinct rows
fexpand                 Fast versions of 'tidyr::expand()' and
                        'tidyr::complete()'.
fgroup_by               'collapse' version of 'dplyr::group_by()'
fn                      Supplementary fast statistical functions,
                        'collapse' style
frowid                  Fast grouped row numbers
fselect                 Fast 'dplyr::select()'/'dplyr::rename()'
fskim                   Fast alternative to 'skimr::skim()'
fslice                  Faster 'dplyr::slice()'
gcd                     Greatest common divisor and smallest common
                        multiple
get_time_delay          Get summary statistics of time delay
group_collapse          Key group information
group_id                Fast group IDs
groups_equal            Are groups equal?
growth                  Rolling basic growth
growth_rate             Fast Growth Rates
gsum                    Grouped statistical functions.
gunique                 Grouped 'unique()', 'sort()' and 'duplicated()'
is_date                 Utility functions for checking if date or
                        datetime
is_whole_number         Are all numbers whole numbers?
iso_week                Efficient, simple and flexible ISO week
                        calculation
missing_dates           Check for missing dates between first and last
                        date
num_na                  Fast number of missing values
q_summarise             Fast grouped quantile summary
roll_apply              By-group rolling functions
roll_lag                Fast rolling grouped lags and differences
roll_na_fill            Fast grouped "locf" 'NA' fill
roll_sum                Fast by-group rolling functions
sequence2               Utilities for creating useful sequences
stat_summarise          Fast grouped statistical summary for data
                        frames.
time_aggregate          Aggregate time to a higher unit
time_by                 Group by a time variable at a higher time unit
time_count              Fast count time at higher time units.
time_cut                Cut dates and datetimes into regularly spaced
                        date or datetime intervals
time_diff               Time differences by any time unit
time_diff_gcd           Fast greatest common divisor of time
                        differences
time_distinct           A time based extension to 'dplyr::distinct()'.
time_elapsed            Fast grouped time elapsed
time_episodes           Episodic calculation of time-since-event data
time_expand             A time based extension to 'tidyr::complete()'.
time_expandv            Vector date and datetime functions
time_gaps               Gaps in a regular time sequence
time_ggplot             Quick time-series ggplot
time_id                 Time ID
time_is_regular         Is time a regular sequence? (Experimental)
time_lag                Time-lagged values
time_mutate             A time based extension to 'dplyr::mutate()'.
time_roll_diff          Lagged time differences
time_roll_sum           Fast time-based by-group rolling sum/mean -
                        Currently experimental
time_seq                Time based version of 'base::seq()'
time_seq_id             Generate a unique identifier for a regular time
                        sequence with gaps
time_summarise          A time based extension to 'dplyr::summarise()'
timeplyr-package        timeplyr: Fast Tidy Tools for Date and
                        Date-Time Manipulation
top_n_tbl               Top N most/least frequent values
ts_as_tibble            Turn 'ts' into a 'tibble'
unit_guess              Guess time unit and extract basic information.
year_month              Fast methods for creating year-months and
                        year-quarters
