[R] From daily series to monthly and viceversa

[Gabor Grothendieck]

You can remove missing values with:

zm <- aggregate(cambio, as.yearmon, mean, na.rm = TRUE)

Its not clear what your second question is asking.  If you
want the series to have a Date class rather than yearmon class
with the 1st of the month then:

zd <- zm
time(zd) <- as.Date(time(zm))

or

zd <- aggregate(zm, as.Date, force)


On Wed, Apr 15, 2009 at 5:28 PM, manta <mantino84 at libero.it> wrote:
>
> Ok, using
>
> mcambio <- aggregate(cambio, as.yearmon, mean)
>
> works perfectly!! Should I worry about the missing values or not anyway? And
> then I go to the following question. From monthly data to daily using a
> specific formula?
> --
> View this message in context: http://www.nabble.com/From-daily-series-to-monthly-and-viceversa-tp23064454p23067500.html
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