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The Stata Journal
Volume 3 Number 2: pp. 148-156



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Adaptive kernel density estimation

Philippe Van Kerm
CEPS/INSTEAD, G.-D. Luxembourg
Abstract.   This insert describes the module akdensity. akdensity extends the official kdensity that estimates density functions by the kernel method. The extensions are of two types: akdensity allows the use of an “adaptive kernel” approach with varying, rather than fixed, bandwidths; and akdensity estimates pointwise variability bands around the estimated density functions.
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