On Fri, Oct 15, 2010 at 6:46 AM, David A. <dasol...@hotmail.com> wrote: > > Thanks Dennis, > > I don't think it was a problem of not feeding in a function for rollapply(), > because I was using mean() and my co.var() function in the FUN argument. > The key part seems to be the transformation that zoo() does to the matrix. If > I do the same transformation to my original matrix, the rollapply() function > now works fine. >
rollapply has ts and zoo methods so you have to pass it an object of one those classes: > methods(rollapply) [1] rollapply.ts* rollapply.zoo* Non-visible functions are asterisked -- Statistics & Software Consulting GKX Group, GKX Associates Inc. tel: 1-877-GKX-GROUP email: ggrothendieck at gmail.com ______________________________________________ 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.
