periodicity validation
The data I mentioned above is oscilating vs time?but there are not obersevable fixed cycle if I just plot this data. How to get the average cycle?or the most probable range of cycle with statistical methods? I don't know how to achieve it by R, is there any command?
On Sep 11, 10:52 am, "stephen sefick" <ssef... at gmail.com> wrote:
?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 <shiyuankun.deb... at gmail.com> 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
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--
Stephen Sefick
Research Scientist
Southeastern Natural Sciences Academy
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______________________________________________ R-h... at r-project.org 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.