Interpolate zoo object with missing Dates

Question

I have a climate time series with missing Dates (not missing values). For example:

n = 15
full.dates = seq(Sys.Date(), by = \'day\', length = n)
serie.dates          


        

Answer 1

Merge with an "empty" object that has all the dates you want, then use na.approx (or na.spline, etc.) to fill in the missing values.

x <- merge(serie, zoo(,seq(start(serie),end(serie),by="day")), all=TRUE)
x <- na.approx(x)