Binning Dates in R

Question

I struggle with dates and times in R, but I am hoping this is a fairly basic task.

Here is my dataset:

> str(temp.df)
\'data.frame\':   74602 obs.         


        

Answer 1

Use the proper time series packages zoo and/or xts. This example is straight from the help pages of aggregate.zoo() which aggregates POSIXct seconds data every 10 minutes

 tt <- seq(10, 2000, 10)
 x <- zoo(tt, structure(tt, class = c("POSIXt", "POSIXct")))
 aggregate(x, time(x) - as.numeric(time(x)) %% 600, mean)

The to.period() function in xts is also a sure winner. There are countless examples here on SO and on the r-sig-finance list.