This routine completes a series of frequency 365.25. Each NA is estimated
using the function
fun (median) of the same day of all other years (where available).
Largest gap (in days) to complete using this method. Defaults to 3 months.
Function to use in order to estimate an NA. Defaults to median.
This function completes small gaps of NA, it is not intended to
complete long periods of NAs. If required to complete large sets of NAs, see
ts object with gaps of NA greater than max.len days (if present).
This function is verbose, some information of its running tasks is presented.
A.M. Sajo-Castelli, Desiree Villalta.