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Thread: The tintinnabulation of the noise
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face BY : Dan Michaels email (remove spam text)



Lawrence Lile wrote:
>This could easily ignite the Average vs Median debate that took up so much
bandwidth about two years ago.  I am convinced that median filter techniques
are superior to averaging, for this reason:  Say I have some pulse noise,
with a nasty 60 hz hum superimposed on it  (that's probably what I'm dealing
with):
>
>3.0, 3.1, 2.9, 3.0, 3.1, 2.9, 1.0, 3.0, 2.9, 3.1
>
>What is the average?   2.8 by my calculation
>
>What if you eliminate the last data point?  the average is 2.76   hmmmmm....
>
>What is the best representation of the data?  3.0, the median, no matter
how many data points we have.
>

By selectively eliminating far outliers, you might get a better
values either way.

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