The function irts is used to create irregular time-series
objects.
as.irts coerces an object to an irregularly spaced
time-series. is.irts tests whether an object is an irregularly
spaced time series.
Usage
irts(time, value)
as.irts(object)
is.irts(object)
Value
A list of class "irts" with the following elements:
time
a vector of class "POSIXct".
value
a numeric vector or matrix.
Arguments
time
a numeric vector or a vector of class "POSIXct"
representing the time-stamps of the irregular time-series
object. The elements of the numeric vector are construed as the
(signed) number of seconds since the beginning of 1970, see
POSIXct.
value
a numeric vector or matrix representing the values of the
irregular time-series object.
object
an R object to be coerced to an irregular time-series
object or an R object to be tested whether it is an irregular
time-series object.
Author
A. Trapletti
Details
The function irts is used to create irregular time-series
objects. These are scalar or vector valued time series indexed by a
time-stamp of class "POSIXct". Unlike objects of class
"ts", they can be used to represent irregularly spaced
time-series.