Mdates {uroot} | R Documentation |
This function determines the year and season to which a given observation in the sample is related to, and the location in the sample of a given time specified by the year and the season.
Mdates (wts, yso)
wts |
a univariate time series object. |
yso |
either a vector of length two indicating the year and season or a vector on length one indicating the location in the sample of an observation. |
An object of class vdate-class
.
Javier López-de-Lacalle javlacalle@yahoo.es and Ignacio Díaz-Emparanza Ignacio.Diaz-Emparanza@ehu.es
## Mdates data(AirPassengers) ## Which date is related to the 12th observation? out1 <- Mdates(AirPassengers, 12) out1 out1@Myso ## Where is located the observation in 1959.2 out2 <- Mdates(AirPassengers, c(1959,2)) out2 ## Beyond the sample. Mdates(AirPassengers, 150) Mdates(AirPassengers, c(1970,2)) ## Which is the next date after the 12th observation? stepdate(as.vdate(AirPassengers, yso=12), step=1)