Since DATE2 is a subset of time(myzoo) either of these should work
window(myzoo, DATE2)
myzoo[DATE2]
If DATE2 were not a subset of time(myzoo) then you could do this:
myzoo2 <- na.locf(merge(myzoo, zoo(, DATE2)))
and now use either of the first two expressions with myzoo2 in place of
myzoo.
On Mon, Dec 7, 2009 at 7:22 AM, Subodh Acharya <shoeb...@gmail.com> wrote:
> Hello everybody,
> I have two datasets, observed and predicted.
> Since my observed dataset is not in regular intervals, I need to filter my
> predicted dataset based on the measurement date of my observed data.
> Here, is an example similar to what I have
>
> library(chron);library(zoo)
> DATE<- seq(as.Date("2009-01-01"), as.Date("2009-05-01"), by = 1)
> mydat<- rnorm(length(DATE), 20,5)
> myzoo<- zoo(mydat, order.by = DATE)
> DATE2<- seq(as.Date("2009-01-01"), as.Date("2009-01-30"), by = 7)
>
> Now I need to create a new zoo object with index as DATE2 and corresponding
> data values.
>
> Any kind of help will be highly appreciated.
>
> Thanks in advance you very much
>
> --
> Acharya, Subodh
>
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>
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