window(x, start, end)
x
| a time-series or other object. |
start
| the start time of the period of interest. |
end
| the end time of the period of interest. |
window
is a generic function which
extracts the subset of the object x
observed between the times start
and end
.
Methods are available for time series and point-processes.time
, ts
.data(presidents) sixties <- window(presidents, 1960, c(1969,4))