timeDate | R Documentation |
Create a "timeDate"
object from scratch from a character
vector or other suitable objects.
timeDate(charvec, format = NULL, zone = "", FinCenter = "", ...)
## S4 method for signature 'character'
timeDate(charvec, format = NULL, zone = "", FinCenter = "",
dst_gap = "+")
strptimeDate(x, format = whichFormat(x), tz = "")
charvec |
a character string or vector of dates and times. |
format |
the format specification of the input character vector. |
tz |
a character with the location of the financial center
named as |
zone |
the time zone or financial center where the data were recorded. |
x |
a character string or vector of dates and times. |
FinCenter |
a character with the location of the financial center named as "continent/city". |
dst_gap |
a character string specifying what to do with non-existent times
falling in a DST gap: add an hour ( |
... |
further arguments for methods. |
timeDate
creates objects from class "timeDate"
from
character vectors, objects from several date/time classes, and other
suitable objects.. It is an S4 generic function and this page
describes the methods defined in package timeDate, see section
‘Methods’.
Note that zone
is the time zone of the input, while
FinCenter
is the ‘current’ time zone, typically but not
necessarilly where the code is run. To change one or both of these
time zones of an existing "timeDate"
object, call
timeDate()
on it, see the method for charvec = "timeDate"
in section ‘Methods’.
strptimeDate
is a wrapper of timeDate
, suitable when
zone
and FinCenter
are the same, It has the same
arguments as strptime
. If format
is missing it
tries to deduce it. If tz
is missing it sets it to the value of
the Rmetrics option "myFinCenter"
.
an object of class "timeDate"
The following methods for timeDate
are defined in package
timeDate.
signature(charvec = "ANY")
Converts charvec
to character
and calls
timeDate
on the result.
signature(charvec = "character")
...
signature(charvec = "Date")
...
signature(charvec = "missing")
Returns the current time as "timeDate"
object.
signature(charvec = "numeric")
...
signature(charvec = "POSIXt")
...
signature(charvec = "timeDate")
Changes the time zone and/or financial center of charvec
to
the requested ones. If zone
is missing or equal to the
empty string, just changes the financial center.
## timeDate -
# Character Vector Strings:
dts = c("1989-09-28", "2001-01-15", "2004-08-30", "1990-02-09")
tms = c( "23:12:55", "10:34:02", "08:30:00", "11:18:23")
dts; tms
t1 <- timeDate(dts, format = "%Y-%m-%d", FinCenter = "GMT" )
t1
stopifnot(identical(t1, timeDate(dts, FinC = "GMT"))) # auto-format
timeDate(dts, format = "%Y-%m-%d", FinCenter = "Europe/Zurich")
timeDate(paste(dts, tms), format = "%Y-%m-%d %H:%M:%S",
zone = "GMT", FinCenter = "GMT")
timeDate(paste(dts, tms),
zone = "Europe/Zurich", FinCenter = "Europe/Zurich")
timeDate(paste(dts, tms), format = "%Y-%m-%d %H:%M:%S",
zone = "GMT", FinCenter = "Europe/Zurich")
## Non Standard Format:
timeDate(paste(20:31, "03.2005", sep="."), format = "%d.%m.%Y")
## Note, ISO and American Formats are Auto-Detected:
timeDate("2004-12-31", FinCenter = "GMT")
timeDate("12/11/2004", FinCenter = "GMT")
timeDate("1/31/2004") # auto-detect American format
## From POSIX?t, and using NAs
## lsec <- as.POSIXlt(.leap.seconds) ; lsec[c(2,4:6)] <- NA
## timeDate(lsec)
## dtms <- paste(dts,tms)
## dtms[2:3] <- NA
## timeDate(dtms, FinCenter = "Europe/Zurich") # but in GMT
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