廣義誤差分佈(Generalized error distribution 或 Exponential power distribution)是一種連續概率分佈,使用尺度參數a和指數b。它的概率密度為:

當b = 1時,即縮減成一個拉普拉斯分佈。當b = 2且時,就成為正態分佈

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