# invalid dates must be resolved when converting to a Date
Conversion from a calendar requires that all dates are valid. Resolve invalid dates by calling `invalid_resolve()`.
# can resolve nonexistent midnight issues
Nonexistent time due to daylight saving time at location 1.
i Resolve nonexistent time issues by specifying the `nonexistent` argument.
# can resolve ambiguous midnight issues
Ambiguous time due to daylight saving time at location 1.
i Resolve ambiguous time issues by specifying the `ambiguous` argument.
# can't group by finer precisions
Can't group at a precision (hour) that is more precise than `x` (day).
---
Can't group at a precision (nanosecond) that is more precise than `x` (day).
# can't group by non-year-month-day precisions
`precision` must be a valid precision for a 'year_month_day'.
# can only floor by week/day
Can't floor to a more precise precision.
---
`precision` must be at least 'day' precision.
# `origin` is validated
`origin` must be a 'Date'.
---
`origin` must not be `NA` or an infinite date.
---
`origin` must not be `NA` or an infinite date.
---
`origin` must have length 1.
# can format dates
Code
vapply(X = formats, FUN = function(format) date_format(x, format = format),
FUN.VALUE = character(1))
Output
C: %C y: %y
"C: 20" "y: 18"
Y: %Y b: %b
"Y: 2018" "b: Dec"
h: %h B: %B
"h: Dec" "B: December"
m: %m d: %d
"m: 12" "d: 31"
a: %a A: %A
"a: Mon" "A: Monday"
w: %w g: %g
"w: 1" "g: 19"
G: %G V: %V
"G: 2019" "V: 01"
u: %u U: %U
"u: 1" "U: 52"
W: %W j: %j
"W: 53" "j: 365"
D: %D x: %x
"D: 12/31/18" "x: 12/31/18"
F: %F H: %H
"F: 2018-12-31" "H: 00"
I: %I M: %M
"I: 12" "M: 00"
S: %S p: %p
"S: 00" "p: AM"
R: %R T: %T
"R: 00:00" "T: 00:00:00"
X: %X r: %r
"X: 00:00:00" "r: 12:00:00 AM"
c: %c %: %%
"c: Mon Dec 31 00:00:00 2018" "%: %"
---
Code
vapply(X = formats, FUN = function(format) date_format(x, format = format,
locale = clock_locale("fr")), FUN.VALUE = character(1))
Output
C: %C y: %y
"C: 20" "y: 18"
Y: %Y b: %b
"Y: 2018" "b: déc."
h: %h B: %B
"h: déc." "B: décembre"
m: %m d: %d
"m: 12" "d: 31"
a: %a A: %A
"a: lun." "A: lundi"
w: %w g: %g
"w: 1" "g: 19"
G: %G V: %V
"G: 2019" "V: 01"
u: %u U: %U
"u: 1" "U: 52"
W: %W j: %j
"W: 53" "j: 365"
D: %D x: %x
"D: 12/31/18" "x: 12/31/18"
F: %F H: %H
"F: 2018-12-31" "H: 00"
I: %I M: %M
"I: 12" "M: 00"
S: %S p: %p
"S: 00" "p: AM"
R: %R T: %T
"R: 00:00" "T: 00:00:00"
X: %X r: %r
"X: 00:00:00" "r: 12:00:00 AM"
c: %c %: %%
"c: lun. déc. 31 00:00:00 2018" "%: %"
# formatting Dates with `%z` or `%Z` returns NA with a warning
Code
date_format(x, format = "%z")
Condition
Warning:
Failed to format 1 string at location 1. Returning `NA` at that location.
Output
[1] NA
---
Code
date_format(x, format = "%Z")
Condition
Warning:
Failed to format 1 string at location 1. Returning `NA` at that location.
Output
[1] NA
# failure to parse throws a warning
Code
date_parse("foo")
Condition
Warning:
Failed to parse 1 string at location 1. Returning `NA` at that location.
Output
[1] NA
# can handle invalid dates
Invalid date found at location 2.
i Resolve invalid date issues by specifying the `invalid` argument.
# start: can't use invalid precisions
`precision` must be a valid precision for a 'year_month_day'.
# end: can't use invalid precisions
`precision` must be a valid precision for a 'year_month_day'.
# can resolve invalid dates
Invalid date found at location 2.
i Resolve invalid date issues by specifying the `invalid` argument.
# components of `to` more precise than `by` must match `from`
All components of `from` and `to` more precise than 'month' must match.
---
All components of `from` and `to` more precise than 'year' must match.
# validates integerish `by`
Can't convert `by` <double> to <integer>.
# validates `total_size` early
Can't convert `total_size` <double> to <integer>.
---
`total_size` can't be `NA`.
---
`total_size` can't be negative.
# `to` and `total_size` must not generate a non-fractional sequence
The supplied output size does not result in a non-fractional sequence between `from` and `to`.
# requires exactly two optional arguments
Must specify exactly two of:
- `to`
- `by`
- `total_size`
---
Must specify exactly two of:
- `to`
- `by`
- `total_size`
---
Must specify exactly two of:
- `to`
- `by`
- `total_size`
# requires `to` to be Date
If supplied, `to` must be a <Date>.
# requires year, month, or day precision
`by` must have a precision of 'year', 'quarter', 'month', 'week', or 'day'.
# checks empty dots
`...` must be empty.
x Problematic argument:
* ..1 = new_date(2)
i Did you forget to name an argument?
# must use a valid Date precision
Code
(expect_error(date_count_between(x, x, "hour")))
Output
<error/rlang_error>
Error in `date_count_between_impl()`:
! `precision` must be one of: 'year', 'quarter', 'month', 'week', 'day'.
# can't count between a Date and a POSIXt
Code
(expect_error(date_count_between(x, y, "year")))
Output
<error/rlang_error>
Error in `date_count_between()`:
! `end` must be a <Date>.
# cannot get the zone of a Date
Can't get the zone of a 'Date'.
# cannot set the zone of a Date
Can't set the zone of a 'Date'.
# <date> op <duration>
no applicable method for 'add_hours' applied to an object of class "Date"
---
<date> * <duration<year>> is not permitted
# <duration> op <date>
<duration<year>> - <date> is not permitted
Can't subtract a Date from a duration.
---
no applicable method for 'add_hours' applied to an object of class "Date"
---
<duration<year>> * <date> is not permitted
Generated by dwww version 1.15 on Sat May 18 09:03:28 CEST 2024.