splitting time vector into days
?aggregate ?window.zoo ?rollapply anyway have a look at package zoo
On Tue, Sep 9, 2008 at 3:25 PM, Alexy Khrabrov <deliverable at gmail.com> wrote:
Greetings -- I have a dataframe a with one element a vector, time, of POSIXct values. What's a good way to split the data frame into periods of a$time, e.g. days, and apply a function, e.g. mean, to some other column of the dataframe, e.g. a$value? Cheers, Alexy
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