timeDate | R Documentation |
Constructs a timeDate
object from a character vector, a vector of julian days, or a vector of milliseconds, or constructs an empty timeDate
object.
timeDate(charvec, in.format, format, zone, julian, ms, in.origin=c(month=1, day=1, year=1960))
charvec |
a character vector to read the times from. |
in.format |
the input format string for |
format |
the output format stored in the result. The default is |
zone |
the time zone stored in the result. The default value is |
julian |
an integer vector of the number of days since |
ms |
an integer vector of milliseconds since midnight. |
in.origin |
the origin for the |
One of charvec
, julian
, or ms
must be supplied,
unless the function is called with no arguments.
If charvec
is supplied, then timeDate
reads the times from the charvec
character strings using the format string from in.format
.
This conversion uses the time zone supplied in zone
.
If charvec
is not supplied, then timeDate
uses julian
and/or ms
to construct the time vector. These are copied directly to
the internals of the time object without considering the time zone (that is, they must be given in GMT, or the user must call timeZoneConvert
afterwards).
Leap seconds do not cause NA
values, but it can cause times of day to be off by a second on the days that contain them.
For information about possible values for the in.format
and format
arguments, see the documentation for the timeDate
class (class.timeDate
).
returns a timeDate
object derived from the inputs.
timeCalendar
,
timeDate
,
format.timeDate
,
timeZoneConvert
.
timeDate() timeDate(c("1/1/97", "2/1/97", "mar 1, 1997")) timeDate(c("1 PM", "2 PM", "3 AM"), in.format = "%H %p", format = "%I %p") timeDate(julian = 36, ms = 876393, in.origin = c(month=1,day=1,year=1998)) ## Get today's date in yyyymmdd format timeDate(date(), in.format="%w %m %d %H:%M:%S %Y", format="%Y%02m%02d")
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