On Fri, 2008-01-11 at 19:59 +0000, Jamie Bullock wrote:
> Krimphoff:
>
> Irregularity = \sum_{k=2}^{N-1} |a_k - \frac{a_{k-1} + a_k + a_{k+1}}
> {3}|
>
> Jensen:
>
> Irregularity = \frac{\sum_{k=1}^{N} (a_k - a_{k+1})} {\sum_{k=1}^N
> a_k^2}
>
Where a_k is the amplitude of the kth coefficient in the magnitude
spectrum.
Jamie
--
www.postlude.co.uk
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