I think thats what the software does for the smoothing
factor but that graph is unsmoothed. Usualy a rough
graph is the result of detonation.
Mike
--- "Perron, Dave C" <[EMAIL PROTECTED]> wrote:
> Looks like a (N-1)th order polynomial fit to noisy
> data taken at N discrete
> RPM intervals. Either that or they used a Fourier
> fit with similar but
> slightly different effect. But that's just a guess.
>
> Dave
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