[R] periodicity validation

[stephen sefick]

?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.debian 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

Let's not spend our time and resources thinking about things that are
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annoying little problems of being mammals.

	-K. Mullis