[R] How do I "normalise" a power spectral density analysis?

[Tom C Cameron]

Hi everyone

Can anyone tell me how I normalise a power spectral density (PSD) plot of a
periodical time-series. At present I get the graphical output of spectrum VS
frequency.

What I want to acheive is period VS spectrum? Are these the same things but the
x-axis scale needs transformed ?

Any help would be greatly appreciated

Tom
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Dr Tom C Cameron                        office: 0113 34 32837 (10.23 Miall)
Ecology & Evolution Res. Group.         lab: 0113 34 32884 (10.20 Miall)
School of Biological Sciences           Mobile: 07966160266
University of Leeds                     email: t.c.cameron at leeds.ac.uk
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