Package: lubridate 1.9.3.9000
Vitalie Spinu
lubridate: Make Dealing with Dates a Little Easier
Functions to work with date-times and time-spans: fast and user friendly parsing of date-time data, extraction and updating of components of a date-time (years, months, days, hours, minutes, and seconds), algebraic manipulation on date-time and time-span objects. The 'lubridate' package has a consistent and memorable syntax that makes working with dates easy and fun.
Authors:
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lubridate.pdf |lubridate.html✨
lubridate/json (API)
NEWS
| # Install lubridate in R: |
| install.packages('lubridate', repos = c('https://tidyverse.r-universe.dev', 'https://cloud.r-project.org')) |
Bug tracker:https://github.com/tidyverse/lubridate/issues
- lakers - Lakers 2008-2009 basketball data set
Last updated 5 months agofrom:e0b50c1759fe35e90a094c012e0c2ce60d47500d
Exports:%--%%m-%%m+%%within%add_with_rollbackamArithas_dateas_datetimeas.difftimeas.durationas.intervalas.periodceiling_dateComparecyclic_encodingdateDatedate_decimaldate<-dayday<-daysdays_in_monthddaysdecimal_datedhoursdmicrosecondsdmillisecondsdminutesdmonthsdmydmy_hdmy_hmdmy_hmsdnanosecondsdpicosecondsdsecondsdstdurationdweeksdyearsdymepiweekepiyearfast_strptimefit_to_timelinefloor_dateforce_tzforce_tzsformat_ISO8601guess_formatshmhmshourhour<-hoursint_alignsint_diffint_endint_end<-int_flipint_lengthint_overlapsint_shiftint_standardizeint_startint_start<-intersectintervalis.Dateis.difftimeis.durationis.instantis.intervalis.periodis.POSIXctis.POSIXltis.POSIXtis.timepointis.timespanisoweekisoyearleap_yearlocal_timemake_datemake_datetimemake_difftimemdaymday<-mdymdy_hmdy_hmmdy_hmsmicrosecondsmillisecondsminuteminute<-minutesmonthmonth<-msmymydNA_Date_NA_POSIXct_nanosecondsnoworiginparse_date_timeparse_date_time2periodperiod_to_secondspicosecondspmPOSIXctpretty_datesqdayqday<-quarterreclass_datereclass_timespanrollbackrollbackwardrollforwardround_datesecondsecond<-secondsseconds_to_periodsemestersetdiffshowstampstamp_datestamp_timetime_lengthtodaytztz<-unionwdaywday<-weekweek<-weekswith_tzydayyday<-ydmydm_hydm_hmydm_hmsyearyear<-yearsymymdymd_hymd_hmymd_hmsyq
Dependencies:cpp11genericstimechange
Readme and manuals
Help Manual
| Help page | Topics |
|---|---|
| Add and subtract months to a date without exceeding the last day of the new month | %m+% %m+%,ANY,ANY-method %m+%,ANY,Duration-method %m+%,ANY,Interval-method %m+%,ANY,Period-method %m+%,Duration,ANY-method %m+%,Interval,ANY-method %m+%,Period,ANY-method %m-% %m-%,ANY,ANY-method %m-%,ANY,Duration-method %m-%,ANY,Interval-method %m-%,ANY,Period-method %m-%,Duration,ANY-method %m-%,Interval,ANY-method %m-%,Period,ANY-method add_with_rollback m+ m- |
| Does a date (or interval) fall within an interval? | %within% %within%,ANY,Interval-method %within%,Date,list-method %within%,Interval,Interval-method %within%,Interval,list-method %within%,POSIXt,list-method |
| Does date time occur in the am or pm? | am pm |
| Convert an object to a date or date-time | as_date as_date,ANY-method as_date,character-method as_date,numeric-method as_date,POSIXt-method as_datetime as_datetime,ANY-method as_datetime,character-method as_datetime,Date-method as_datetime,numeric-method as_datetime,POSIXt-method |
| Change an object to a duration | as.duration as.duration,character-method as.duration,difftime-method as.duration,Duration-method as.duration,Interval-method as.duration,logical-method as.duration,numeric-method as.duration,Period-method |
| Change an object to an 'interval' | as.interval as.interval,difftime-method as.interval,Duration-method as.interval,Interval-method as.interval,logical-method as.interval,numeric-method as.interval,Period-method as.interval,POSIXt-method |
| Change an object to a period | as.period as.period,character-method as.period,difftime-method as.period,Duration-method as.period,Interval-method as.period,logical-method as.period,numeric-method as.period,Period-method |
| Cyclic encoding of date-times | cyclic_encoding |
| Get/set date component of a date-time | date date<- |
| Converts a decimal to a date | date_decimal |
| Changes the components of a date object | DateTimeUpdate update.POSIXt |
| Get/set days component of a date-time | day day<- mday mday<- qday qday<- wday wday<- yday yday<- |
| Get the number of days in the month of a date-time | days_in_month |
| Converts a date to a decimal of its year | decimal_date |
| Get *d*aylight *s*avings *t*ime indicator of a date-time | dst |
| Create a duration object. | ddays dhours dmicroseconds dmilliseconds dminutes dmonths dnanoseconds dpicoseconds dseconds duration dweeks dyears is.duration |
| Duration class | Duration-class durations |
| Fit a POSIXlt date-time to the timeline | fit_to_timeline |
| Replace time zone to create new date-time | force_tz force_tz.default force_tzs |
| Format in ISO8601 character format | format_ISO8601 format_ISO8601,Date-method format_ISO8601,Duration-method format_ISO8601,Interval-method format_ISO8601,Period-method format_ISO8601,POSIXt-method |
| Guess possible date-times formats from a character vector | guess_formats |
| Get/set hours component of a date-time | hour hour<- |
| Utilities for creation and manipulation of 'Interval' objects | %--% interval int_aligns int_diff int_end int_end<- int_flip int_length int_overlaps int_shift int_standardize int_start int_start<- is.interval |
| Interval class | Interval-class intervals |
| Various date utilities | Date is.Date NA_Date_ |
| Is x a difftime object? | is.difftime |
| Is x a date-time object? | instant instants is.instant is.timepoint |
| Various POSIX utilities | is.POSIXct is.POSIXlt is.POSIXt NA_POSIXct_ POSIXct |
| Is x a length of time? | is.timespan |
| Lakers 2008-2009 basketball data set | lakers |
| Is a year a leap year? | leap_year |
| Get local time from a date-time vector. | local_time |
| Efficient creation of date-times from numeric representations | make_date make_datetime |
| Create a difftime object. | make_difftime |
| Get/set minutes component of a date-time | minute minute<- |
| Get/set months component of a date-time | month month<- |
| Parse periods with *h*our, *m*inute, and *s*econd components | hm hms ms |
| The current day and time | now today |
| 1970-01-01 UTC | origin |
| User friendly date-time parsing functions | fast_strptime parse_date_time parse_date_time2 |
| Create or parse period objects | days hours is.period microseconds milliseconds minutes months.numeric nanoseconds period periods picoseconds seconds weeks years |
| Contrive a period to/from a given number of seconds | period_to_seconds seconds_to_period |
| Computes attractive axis breaks for date-time data | pretty_dates |
| Get the fiscal quarter and semester of a date-time | quarter semester |
| Roll backward or forward a date the previous, current or next month | rollback rollbackward rollforward |
| Round, floor and ceiling methods for date-time objects | ceiling_date floor_date round_date |
| Get/set seconds component of a date-time | second second<- |
| Format dates and times based on human-friendly templates | stamp stamp_date stamp_time |
| Compute the exact length of a time span | time_length time_length,Interval-method |
| Description of time span classes in lubridate | timespan timespans |
| Get/set time zone component of a date-time | tz tz<- |
| Get/set weeks component of a date-time | epiweek isoweek week week<- |
| Get date-time in a different time zone | with_tz with_tz.default |
| Get/set years component of a date-time | epiyear isoyear year year<- |
| Parse dates with *y*ear, *m*onth, and *d*ay components | dmy dym mdy my myd ydm ym ymd yq |
| Parse date-times with *y*ear, *m*onth, and *d*ay, *h*our, *m*inute, and *s*econd components. | dmy_h dmy_hm dmy_hms mdy_h mdy_hm mdy_hms ydm_h ydm_hm ydm_hms ymd_h ymd_hm ymd_hms |
