Try this: > BOD # comes with R Time demand 1 1 8.3 2 2 10.3 3 3 19.0 4 4 16.0 5 5 15.6 6 7 19.8 > rollapply(as.zoo(as.matrix(BOD)), 3, sum)
2 6 37.6 3 9 45.3 4 12 50.6 5 16 51.4 rollapply has many more options and capabilities. See ?rollapply On Sat, Sep 27, 2008 at 11:16 AM, milicic.marko <[EMAIL PROTECTED]> wrote: > Thanks Gabor, > > But the function I intend to apply requires data.frame object ... not > zoo() object > > have you had expirience with this kind of problems. > > > On Sep 27, 3:59 pm, "Gabor Grothendieck" <[EMAIL PROTECTED]> > wrote: >> rollapply in the zoo package does that. See ?rollapply and the >> three accompanying vignettes. >> >> > library(zoo) >> > z <- zoo(1:10) >> > rollapply(z, 3, sum) >> >> 2 3 4 5 6 7 8 9 >> 6 9 12 15 18 21 24 27 >> >> On Sat, Sep 27, 2008 at 10:45 AM, milicic.marko <[EMAIL PROTECTED]> wrote: >> > Is there an implementation of moving window functionality so I can >> > apply any function while sliding trough window. >> >> > Thanks >> >> > ______________________________________________ >> > [EMAIL PROTECTED] mailing list >> >https://stat.ethz.ch/mailman/listinfo/r-help >> > PLEASE do read the posting guidehttp://www.R-project.org/posting-guide.html >> > and provide commented, minimal, self-contained, reproducible code. >> >> ______________________________________________ >> [EMAIL PROTECTED] mailing listhttps://stat.ethz.ch/mailman/listinfo/r-help >> PLEASE do read the posting guidehttp://www.R-project.org/posting-guide.html >> and provide commented, minimal, self-contained, reproducible code. > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
