12 Jan
2008
12 Jan
'08
2:07 p.m.
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
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