Comments (1)
Here's the TODO. I transferred the issues that I think lubridate could improve. Most of the issues lubridate already handles or are the result of people not knowing how to use R:
Date related queries to R-Help
(Also the help desk article in RNews 4/1 contains info on dates)
ymd() - make R recognize dates as dates
newDate <- as.Date(result[,"Date"], "%d.%m.%y"))
data[data$date < ymd(2000-03-02),] - subset my data based on its date column
ymd() - get as.POSIXct() to recognize my data format
? - retain the date class? e.g Unlist() drops the class attribute
and ifelse(d > "1996-1-1", "1996-1-1", d) doesn not work
added - convert a date to a year + decimal (e.g. 2000-07-01 ~ 2000.4953)
new_date <- (as.POSIXct(date) - as.POSSIXct(origin)) or start point + duration - compute any date from a specified start point
R DOES - determine the weekday of any date
as.numeric(format(d, "%w")) # 0 = Sunday
# or
format(d, "%a")
# or
weekdays(d)
R DOES? - use a date value as an index in a for loop
NA - general frustration of R not recognizing dates imported from excel
year(), week() - extract year and week information from a date
from lubridate.
Related Issues (20)
- Problems with POSIXct in R 4.3.2 HOT 1
- 'OO' format option not recognized for parsing ISO 8601 time zone offsets
- `parse_date_time()` cannot match missing zeroes
- Inconsistent behavior of `parse_date_time()` inside `dplyr::mutate()` HOT 2
- month() and otehrs fail on objects from class 'timeDate'
- ymd_hms() function left-pads some dates that have missing "seconds" values
- round_date in 0.1 sec doesn't work correctly
- FR: int_overlaps with exclusive endpoints
- unique() always zero for periods HOT 1
- Implement Set Operations methods for Dates HOT 1
- Parsing dates with `my` seems to have a limit size
- Do we need something like `%m-%` to subtract years from leap 02/29? HOT 1
- Cannot compute `<date> + lubridate::year(1)` when `<date>` is a leap day. HOT 1
- m:s:ms time data
- `dmy()` not failing (and returning incorrect date) on wrong date format
- ceiling_date() issue when using multi units
- Fractional Seconds with conversion and rounding/truncation?
- mdy("04 July 2019") GIVES "2019-04-20" : Instead should give an error.
- data.table merge doesn't work with intervals HOT 1
- yearmonth() throws an error with C_force_tz
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from lubridate.