[R] significance of spectal peak with spectrum()

[Sebastian Leuzinger]

Hello, has anybody got a simple recepie to test the significance level of the 
peaks after using spectrum() ?

(R-version 2.0.1, linux SuSE9.3)
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Sebastian Leuzinger
Institute of Botany, University of Basel
Schönbeinstr. 6 CH-4056 Basel
ph    0041 (0) 61 2673511
fax   0041 (0) 61 2673504
email Sebastian.Leuzinger at unibas.ch 
web   http://pages.unibas.ch/botschoen/leuzinger