the null hypothesis would be: one particular frequency peak is not 
significantly different from the background noise.

On Friday 16 September 2005 09:28, you wrote:
> Sebastian Leuzinger wrote:
> > Hello, has anybody got a simple recepie to test the significance level of
> > the peaks after using spectrum() ?
>
> What is you null hypothesis?
>
> - Kind of noise?
> - One particular frequency is noisy or all noisy?
> - ...
>
> Uwe Ligges
>
> > (R-version 2.0.1, linux SuSE9.3)

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