Dictionary:ℓp fit

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Warning: Display title "Dictionary:&#x2113;<sub><i>p</i></sub> fit" overrides earlier display title "Dictionary:ℓp fit".

The parameters that produce estimations yi to a set of data points yi such that the differences between the data and the estimates (the errors ei=yiyi) minimizes

where wi are weighting factors. If p=1, this yields the least-absolute deviation fit; for p=2, least-squares; for p=infinity, the minimax or Chebychev results.