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lubridate (version 1.1.0)

Make dealing with dates a little easier

Description

Lubridate makes it easier to work with dates and times by providing functions to identify and parse date-time data, extract and modify components of a date-time (years, months, days, hours, minutes, and seconds), perform accurate math on date-times, handle time zones and Daylight Savings Time. Lubridate has a consistent, memorable syntax, that makes working with dates fun instead of frustrating.

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Version

Install

install.packages('lubridate')

Monthly Downloads

947,479

Version

1.1.0

License

GPL

Maintainer

Garrett Grolemund

Last Published

March 5th, 2012

Functions in lubridate (1.1.0)

int_standardize

Ensures all intervals in an interval object are positive

Create a period with the specified hours, minutes, and seconds

Create a duration object.

Round date-times down.

add_epoch_to_date

Add epochs to dates

Parse dates that have hours, minutes, or seconds elements

Replace time zone to create new date-time

Is x an Interval object?

Get/set days component of a date-time.

Computes attractive axis breaks for date-time data

Create a duration object.

Get/set days component of a date-time.

Is x a date-time object?

period_to_seconds

Convert a period to the number of units it appears to represent

Get/set months component of a date-time.

Description of time span classes in lubridate.

Is x a duration object?

The current date

Create an interval object.

Round date-times up.

Shift an interval along the timeline

Create a period object.

Access and change the end date of an interval

Changes the components of a date object

Test if two intervals share an endpoint

Access and change the start date of an interval

Makes a difftime object from a given number of seconds

Is x a Date object?

Quickly create common epoch objects

Get/set weeks component of a date-time.

Flip the direction of an interval

Create an epoch object

Does date time occur in the am or pm?

Change an object to a period.

Get date-time in a different time zone

Get Daylight Savings Time indicator of a date-time.

Is x a difftime object?

Tests whether a date or interval falls within an interval

Create a period object.

Get/set years component of a date-time.

Convenience method to reclass dates post-modification.

Is x a POSIXct or POSIXlt object?

Create a period with the specified number of hours and minutes

Get/set minutes component of a date-time.

Create a difftime object.

Get/set time zone component of a date-time.

Is x a period object?

Get/set seconds component of a date-time.

Quickly create relative timespans.

Change an object to a duration.

Create a period with the specified number of minutes and seconds

Change dates into a POSIXct format

Parse dates according to the order that year, month, and day elements appear

Is a year a leap year?

Rounding for date-times.

Is x a length of time?

The current time

Get/set hours component of a date-time.

Convert a variety of date-time classes to POSIXlt and POSIXct

Converts a date to a decimal of its year.

Change an object to an interval.

Quickly create exact time spans.

Dates and times made easy with lubridate

Test if two intervals overlap

Lakers 2008-2009 basketball data set

reclass_timespan

Convenience method to reclass timespans post-modification.