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If you want to do data cleaning (e.g. suppose you have 1000 data points), is finding sufficient statistics a good thing to do? Because this seems to reduce the extra noise of the data.

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I m sure it s a good question for this forum too, but just wondering whether you may get an answer more quickly on the stats stack exchange ? – Beltrame Jan 30 '12 at 20:16
We need more information. There's no such thing as a sufficient statistic until there's a family of probability distributions. – Michael Hardy Jan 30 '12 at 23:53

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