[R] Identify period length of time series automatically?

[Rainer M Krug]

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Hi

I have 10.000 simulations for a sensitivity analysis. I have done a few
sensitivity analysis for different response variables already,
but now, as most of the simulations (if not all) show some cyclic
behaviour, see how the independent input parameter influence the
frequency of the cyclic changes and "how cyclic" they actually are.

So effectively, I have 39 values, and I want to identify automatically
the frequency / period length of the series and a kind of a measure on
"how cyclic" the series is.

How can I do that automatically without individual checking? I do not
want to do an eyeball assessment for 10.000 time series....

Thanks,

Rainer

- -- 
Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation
Biology, UCT), Dipl. Phys. (Germany)

Centre of Excellence for Invasion Biology
Stellenbosch University
South Africa

Tel :       +33 - (0)9 53 10 27 44
Cell:       +33 - (0)6 85 62 59 98
Fax :       +33 - (0)9 58 10 27 44

Fax (D):    +49 - (0)3 21 21 25 22 44

email:      Rainer at krugs.de

Skype:      RMkrug
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