[R] periodicity validation

[Jeff Ryan]

Take a look at the xts package.

?periodicity

HTH
Jeff

yk-4 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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