Invisible wrote:

> I'm now going to experiment with different similarity metrics, to see 
> what difference that makes...

Well, actually it turns out that which metric you use makes a pretty 
small difference to the result - and overall, simple signal correlation 
seems to work just about as well as any elaborate system I can come up with.

(Total deviation squared comes out identical to signal correlation. 
Total absolute deviation is slightly different, with more overshoot. And 
signal derivative correlation comes out more "noisy".)

Oh well - I guess this is the closest fit I'm going to get...

-- 
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