API for datey
Exact Date and Duration Arithmetic on an Annual Grid

Global functions
$.datey Man page
$.datey_interval Man page
%includes% Man page
%to% Man page
.onLoad Source code
NA_datey_ Man page
NA_datey_interval_ Man page
NA_durationy_ Man page
NAs Man page
Ops.datey_type Man page Source code
Summary.datey Man page
Summary.datey_interval Man page Source code
Summary.durationy Man page
[.datey Man page
[.datey_interval Man page
[.durationy Man page
[<-.datey Man page
[<-.datey_interval Man page
[<-.durationy Man page
`$.datey_interval` Source code
`$.datey` Source code
`%includes%` Source code
`%to%` Source code
`[.datey_interval` Source code
`[.datey` Source code
`[.durationy` Source code
`[<-.datey_interval` Source code
`[<-.datey` Source code
`[<-.durationy` Source code
all_collapsed Man page Source code
all_collapsed.datey_interval Man page Source code
all_collapsed.default Man page Source code
all_of_time Man page
all_proper Man page Source code
all_proper.datey_interval Man page Source code
all_proper.default Man page Source code
anyNA.datey Man page Source code
anyNA.datey_interval Man page Source code
anyNA.durationy Man page Source code
any_collapsed Man page Source code
any_collapsed.datey_interval Man page Source code
any_collapsed.default Man page Source code
as.character.datey Man page Source code
as.character.datey_interval Man page Source code
as.character.durationy Man page Source code
as.double.datey Man page Source code
as.double.durationy Man page Source code
as.integer.datey Man page Source code
as.integer.durationy Man page Source code
as_double_for_cpp Source code
as_integer_for_cpp Source code
as_years_datey Man page
as_years_durationy Man page
c.datey Man page Source code
c.datey_interval Man page Source code
c.durationy Man page Source code
combine Man page
convert_datey_to_valid_clicks Source code
convert_durationy_to_valid_clicks Source code
cpp_asSafeIntegers Source code
cpp_dateyAnyNA Source code
cpp_dateyFromRDateAndFraction Source code
cpp_dateyFromRStringAndDayFraction Source code
cpp_dateyFromRStringOnly Source code
cpp_dateyFromYMDF Source code
cpp_dateyFromYMDF_dblYMD Source code
cpp_dateyInterval Source code
cpp_dateyIntervalAllCollapsed Source code
cpp_dateyIntervalAllProper Source code
cpp_dateyIntervalAnyCollapsed Source code
cpp_dateyIntervalAnyNA Source code
cpp_dateyIntervalDuration Source code
cpp_dateyIntervalEnd Source code
cpp_dateyIntervalFromLogical Source code
cpp_dateyIntervalIncludes Source code
cpp_dateyIntervalIsCollapsed Source code
cpp_dateyIntervalIsNA Source code
cpp_dateyIntervalIsProper Source code
cpp_dateyIntervalStart Source code
cpp_dateyIntervalToRString Source code
cpp_dateyIsNA Source code
cpp_dateyToD Source code
cpp_dateyToF Source code
cpp_dateyToM Source code
cpp_dateyToRString Source code
cpp_dateyToY Source code
cpp_dateyToYMDF Source code
cpp_dateyWithNewDayFraction Source code
cpp_durationyAnyNA Source code
cpp_durationyFromRString Source code
cpp_durationyIsNA Source code
cpp_durationyToRString Source code
cpp_isLeapYear_datey Source code
cpp_isLeapYear_double Source code
cpp_isLeapYear_integer Source code
datey Man page Source code
datey-package Man page
datey.Date Man page Source code
datey.POSIXct Man page Source code
datey.POSIXlt Man page Source code
datey.character Man page Source code
datey.datey Man page Source code
datey.default Man page Source code
datey.double Man page Source code
datey.integer Man page Source code
datey_components Man page
datey_from_clicks Source code
datey_from_ymdf Source code
datey_interval Man page Source code
datey_interval.datey Man page Source code
datey_interval.datey_interval Man page Source code
datey_interval.default Man page Source code
datey_interval.double Man page Source code
datey_interval.integer Man page Source code
datey_interval.logical Man page Source code
datey_interval_from_punned_double Source code
durationy Man page Source code
durationy.character Man page Source code
durationy.datey_interval Man page Source code
durationy.default Man page Source code
durationy.double Man page Source code
durationy.durationy Man page Source code
durationy.integer Man page Source code
durationy_from_clicks Source code
end_day Man page Source code
ensure_is_datey Source code
ensure_is_datey_interval Source code
ensure_is_datey_scalar Source code
ensure_is_durationy Source code
ensure_is_durationy_scalar Source code
ensure_is_scalar Source code
ensure_is_switch Source code
ensure_is_text_scalar Source code
format.datey Man page Source code
format.datey_interval Man page Source code
format.durationy Man page Source code
integer_constants Man page
interval_includes Man page Source code
interval_nature Man page
interval_properties Man page
is.na.datey Man page Source code
is.na.datey_interval Man page Source code
is.na.durationy Man page Source code
is_NA Man page
is_collapsed Man page Source code
is_collapsed.datey_interval Man page Source code
is_collapsed.default Man page Source code
is_datey Man page Source code
is_datey_interval Man page Source code
is_durationy Man page Source code
is_leap_year Man page Source code
is_leap_year.Date Man page Source code
is_leap_year.POSIXct Man page Source code
is_leap_year.POSIXlt Man page Source code
is_leap_year.datey Man page Source code
is_leap_year.default Man page Source code
is_leap_year.double Man page Source code
is_leap_year.integer Man page Source code
is_mid_day Man page Source code
is_proper Man page Source code
is_proper.datey_interval Man page Source code
is_proper.default Man page Source code
is_pure_character Source code
is_pure_logical Source code
is_pure_numeric Source code
is_start_day Man page Source code
is_type Man page
is_xxx_day Man page
max_min Man page
mean Man page
mean.datey Man page
mean.datey_interval Man page Source code
mean.durationy Man page
mid_day Man page Source code
ops Man page
pillar_shaft.datey Source code
pillar_shaft.datey_interval Source code
pillar_shaft.durationy Source code
print.datey Man page Source code
print.datey_interval Man page Source code
print.durationy Man page Source code
seq Man page
seq.datey Man page Source code
seq.durationy Man page Source code
start_day Man page Source code
subset Man page
text_from_datey Man page
text_from_datey_interval Man page
text_from_durationy Man page
to_ymdf Man page Source code
valid_duration_years_max Man page
valid_years_end Man page
valid_years_start Man page
validate_datey_from_numeric Source code
xxx_day Source code
datey documentation built on July 14, 2026, 5:06 p.m.