Number of Periods in Data
Calculate the number of specified periods in a given time series like data object.
nseconds(x) nminutes(x) nhours(x) ndays(x) nweeks(x) nmonths(x) nquarters(x) nyears(x)
x |
A time-based object |
Essentially a wrapper to endpoints with the appropriate
period specified; the resulting value derived from counting the
endpoints
As a compromise between simplicity and accuracy, the results will always round up to the nearest complete period. So n**** - 1 will return the completed periods.
For finer grain detail one should call a higher frequency n**** function.
An alternative summary can be found with periodicity
and unclass(periodicity(x)).
The number of observations for the period type specified
Jeffrey A. Ryan
## Not run:
getSymbols("QQQQ")
ndays(QQQQ)
nweeks(QQQQ)
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