r - time series padding with NA

Question

Say, if I have a data frame as follows:

Date1 <- seq(from = as.POSIXct(\"2010-05-01 02:00\"), 
             to = as.POSIXct(\"2010-10-10 22:00\"), by = 36         


        

Answer 1

Create new data frame that contains all hours and then merge both data frames.

df2<-data.frame(DateTime=seq(from = as.POSIXct("2010-01-01 00:00"), 
                             to = as.POSIXct("2010-12-31 23:00"), by = "hour"))
merge(df2,Dat,all=TRUE)