delta: find default time interval end points when intervals are regular
Description
find default time interval end points when intervals are regular
Usage
delta(x)
Value
sequence of POSIXct time stamps, indicating the end
of the time interval, given by the next observation in x.
The last interval gets the same width of the one-but-last interval.
Arguments
x
object of class xts, or of another class that can
be coerced into POSIXct
;
Author
Edzer Pebesma
Details
to find the interval size for the last observation (which has no next
observation), x needs to be at least of length 2.