Fast Tidy Tools for Date and Date-Time Manipulation

Documentation for package ‘timeplyr’ version 0.5.0

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A B C D E F G H I L M N Q R S T U W Y misc

timeplyr: Fast Tidy Tools for Date and Date-Time Manipulation

-- A --

add_calendar	Create a table of common time units from a date or datetime sequence.
add_group_id	Fast group IDs
add_group_order	Fast group IDs
add_row_id	Fast group IDs
age_months	Accurate and efficient age calculation
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

-- B --

bottom_n	Top N most/least frequent values
bottom_n_tbl	Top N most/least frequent values

-- C --

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

-- D --

desc	Helpers to sort variables in ascending or descending order
diff_	Fast rolling grouped lags and differences
duplicate_rows	Find duplicate rows

-- E --

edf	Grouped empirical cumulative distribution function applied to data

-- F --

fadd_count	A fast replacement to dplyr::count()
farrange	A 'collapse' version of 'dplyr::arrange()'
fcomplete	Fast versions of 'tidyr::expand()' and 'tidyr::complete()'.
fcount	A fast replacement to dplyr::count()
fcummean	Supplementary fast statistical functions, 'collapse' style
fdistinct	Find distinct rows
fduplicates	Find duplicate rows
fduplicates2	Find duplicate 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
fnmiss	Supplementary fast statistical functions, 'collapse' style
fprop_complete	Supplementary fast statistical functions, 'collapse' style
fprop_missing	Supplementary fast statistical functions, 'collapse' style
frename	Fast 'dplyr::select()'/'dplyr::rename()'
frowid	Fast grouped row numbers
fselect	Fast 'dplyr::select()'/'dplyr::rename()'
fskim	Fast alternative to 'skimr::skim()'
fslice	Faster 'dplyr::slice()'
fslice_head	Faster 'dplyr::slice()'
fslice_max	Faster 'dplyr::slice()'
fslice_min	Faster 'dplyr::slice()'
fslice_sample	Faster 'dplyr::slice()'
fslice_tail	Faster 'dplyr::slice()'

-- G --

gcd	Greatest common divisor and smallest common multiple
gcd_diff	Greatest common divisor and smallest common multiple
gduplicated	Grouped 'unique()', 'sort()' and 'duplicated()'
geometric_mean	Unweighted & weighted arithmetic, geometric and harmonic mean
get_time_delay	Get summary statistics of time delay
gfirst	Grouped statistical functions.
glast	Grouped statistical functions.
gmax	Grouped statistical functions.
gmean	Grouped statistical functions.
gmedian	Grouped statistical functions.
gmin	Grouped statistical functions.
gmode	Grouped statistical functions.
gnobs	Grouped statistical functions.
gorder	Grouped 'unique()', 'sort()' and 'duplicated()'
groups_equal	Are groups equal?
group_collapse	Key group information
group_id	Fast group IDs
group_order	Fast group IDs
growth	Rolling basic growth
growth_rate	Fast Growth Rates
gsd	Grouped statistical functions.
gsort	Grouped 'unique()', 'sort()' and 'duplicated()'
gsum	Grouped statistical functions.
gunique	Grouped 'unique()', 'sort()' and 'duplicated()'
gvar	Grouped statistical functions.
gwhich_duplicated	Grouped 'unique()', 'sort()' and 'duplicated()'

-- H --

harmonic_mean

Unweighted & weighted arithmetic, geometric and harmonic mean

-- I --

isoday	Efficient, simple and flexible ISO week calculation
iso_week	Efficient, simple and flexible ISO week calculation
is_date	Utility functions for checking if date or datetime
is_datetime	Utility functions for checking if date or datetime
is_time	Utility functions for checking if date or datetime
is_time_or_num	Utility functions for checking if date or datetime
is_whole_number	Are all numbers whole numbers?

-- L --

lag_	Fast rolling grouped lags and differences
lag_seq	Fast rolling grouped lags and differences
lag_sequence	Utilities for creating useful sequences
lead_	Fast rolling grouped lags and differences
lead_sequence	Utilities for creating useful sequences
lump_bottom_n	Top N most/least frequent values
lump_top_n	Top N most/least frequent values

-- M --

missing_dates

Check for missing dates between first and last date

-- N --

num_na	Fast number of missing values
n_missing_dates	Check for missing dates between first and last date

-- Q --

q_summarise

Fast grouped quantile summary

-- R --

rolling_growth	Rolling basic growth
roll_apply	By-group rolling functions
roll_diff	Fast rolling grouped lags and differences
roll_geometric_mean	Fast by-group rolling functions
roll_growth_rate	Fast by-group rolling functions
roll_harmonic_mean	Fast by-group rolling functions
roll_lag	Fast rolling grouped lags and differences
roll_mean	Fast by-group rolling functions
roll_na_fill	Fast grouped "locf" 'NA' fill
roll_sum	Fast by-group rolling functions
row_id	Fast group IDs

-- S --

scm	Greatest common divisor and smallest common multiple
sequence2	Utilities for creating useful sequences
seq_id	Utilities for creating useful sequences
seq_size	Utilities for creating useful sequences
seq_v	Utilities for creating useful sequences
stat_summarise	Fast grouped statistical summary for data frames.

-- T --

timeplyr	timeplyr: Fast Tidy Tools for Date and Date-Time Manipulation
time_aggregate	Aggregate time to a higher unit
time_breaks	Cut dates and datetimes into regularly spaced date or datetime intervals
time_by	Group by a time variable at a higher time unit
time_by_span	Group by a time variable at a higher time unit
time_by_units	Group by a time variable at a higher time unit
time_by_var	Group by a time variable at a higher time unit
time_complete	A time based extension to 'tidyr::complete()'.
time_completev	Vector date and datetime functions
time_count	Fast count time at higher time units.
time_countv	Vector date and datetime functions
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_has_gaps	Gaps in a regular time sequence
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_num_gaps	Gaps in a regular time sequence
time_roll_apply	Fast time-based by-group rolling sum/mean - Currently experimental
time_roll_diff	Lagged time differences
time_roll_growth_rate	Fast time-based by-group rolling sum/mean - Currently experimental
time_roll_mean	Fast time-based by-group rolling sum/mean - Currently experimental
time_roll_sum	Fast time-based by-group rolling sum/mean - Currently experimental
time_roll_window	Fast time-based by-group rolling sum/mean - Currently experimental
time_roll_window_size	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_seq_sizes	Time based version of 'base::seq()'
time_seq_v	Time based version of 'base::seq()'
time_seq_v2	Time based version of 'base::seq()'
time_span	Vector date and datetime functions
time_span_size	Vector date and datetime functions
time_summarise	A time based extension to 'dplyr::summarise()'
time_summarisev	Vector date and datetime functions
top_n	Top N most/least frequent values
top_n_tbl	Top N most/least frequent values
ts_as_tibble	Turn 'ts' into a 'tibble'
ts_as_tibble.default	Turn 'ts' into a 'tibble'
ts_as_tibble.mts	Turn 'ts' into a 'tibble'
ts_as_tibble.timeSeries	Turn 'ts' into a 'tibble'
ts_as_tibble.xts	Turn 'ts' into a 'tibble'
ts_as_tibble.zoo	Turn 'ts' into a 'tibble'

-- U --

unit_guess

Guess time unit and extract basic information.

-- W --

window_sequence

Utilities for creating useful sequences

-- Y --

year_month	Fast methods for creating year-months and year-quarters
year_quarter	Fast methods for creating year-months and year-quarters
YM	Fast methods for creating year-months and year-quarters
YQ	Fast methods for creating year-months and year-quarters

-- misc --

.duration_units	Time units
.extra_time_units	Time units
.period_units	Time units
.roll_na_fill	Fast grouped "locf" 'NA' fill
.stat_fns	Fast grouped statistical summary for data frames.
.time_units	Time units