Dictionary:Least absolute deviation fit

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{{#category_index:L|least absolute deviation fit}} An ℓρ (q.v.) fit with ρ=1. The ℓ1 fit is the least mean deviation solution of a problem and corresponds to the maximum-likelihood estimate when the errors have a Laplace (double exponential) distribution. The best ℓ1 estimate to a set of numbers is the median.