?spectrum ?acf ?ccf library(wmtsa) ?wavCWT library(sowas) ?wsp you could also look at lagged plots to look for periodicity. if you elaborate on the problem and include executable sample code you will probably recieve more help.
On Wed, Sep 10, 2008 at 10:02 PM, yk <[EMAIL PROTECTED]> wrote: > There is a series of data contains time in fixed step and energy > varying with time, how to test its periodicity?In R, it seems there is > no direct tools since I have search the R manual with periodic and I > have not found any related topic. > Thanks a lot > > ______________________________________________ > 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. > -- Stephen Sefick Research Scientist Southeastern Natural Sciences Academy Let's not spend our time and resources thinking about things that are so little or so large that all they really do for us is puff us up and make us feel like gods. We are mammals, and have not exhausted the annoying little problems of being mammals. -K. Mullis ______________________________________________ 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.
