fame (version 1.13)

POSIXct: Date-time Constructor Functions

Description

Functions to create objects of classes "POSIXlt" and "POSIXct" representing calendar dates and times.

Usage

POSIXct(x, ...)
POSIXlt(x, ...)
## S3 method for class 'jul':
POSIXct(x, \dots)
## S3 method for class 'ti':
POSIXct(x, offset = 1, \dots)
## S3 method for class 'default':
POSIXct(x, \dots)
## S3 method for class 'jul':
POSIXlt(x, \dots)
## S3 method for class 'ti':
POSIXlt(x, \dots)
## S3 method for class 'default':
POSIXlt(x, \dots)

Arguments

x

An object to be converted.

offset

a number between 0 and 1 specifying where in the period represented by the ti object x the desired time falls. offset = 1 gives the first second of the period and offset = 1 the last second, off

...

other args passed to ISOdatetime (POSIXct.jul and POSIXct.ti), as.POSIXct or as.POSIXlt as appropriate. May include a tz argument to specify a timezone, if one is requir

Value

• POSIXct and POSIXlt return objects of the appropriate class. If tz was specified it will be reflected in the "tzone" attribute of the result.

Details

The default methods POSIXct.default and POSIXlt.default do nothing but call as.POSIXct and as.POSIXlt, respectively. The POSIXct.ti method can take an offset argument as explained above, and the POSIXct.jul method can handle jul objects with a fractional part. The ti and jul methods for POSIXlt just call the POSIXct constructor and then convert it's value to a POSIXlt object.

See Also

as.POSIXct and link{as.POSIXlt} for the default conversion functions, and DateTimeClasses for details of the classes.