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In probability theory and statistics, the half-normal distribution is a special case of the folded normal distribution. Let follow an ordinary normal distribution, . Then, follows a half-normal distribution. Thus, the half-normal distribution is a fold at the mean of an ordinary normal distribution with mean zero.

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  • Half-normal distribution (en)
  • Loi demi-normale (fr)
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  • In probability theory and statistics, the half-normal distribution is a special case of the folded normal distribution. Let follow an ordinary normal distribution, . Then, follows a half-normal distribution. Thus, the half-normal distribution is a fold at the mean of an ordinary normal distribution with mean zero. (en)
  • En théorie des probabilités et en statistique, la loi demi-normale est un cas particulier de la loi normale repliée. Soit une variable aléatoire de loi normale centrée, , alors est de loi demi-normale. En particulier, la loi demi-normale est une loi normale repliée de paramètre 0 et . (fr)
name
  • Half-normal distribution (en)
  • The Modified Half Normal Distribution (en)
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  • http://commons.wikimedia.org/wiki/Special:FilePath/Half_normal_cdf.svg
  • http://commons.wikimedia.org/wiki/Special:FilePath/Half_normal_pdf.svg
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  • (en)
variance
  • . (en)
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  • density (en)
  • continuous (en)
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  • . (en)
has abstract
  • In probability theory and statistics, the half-normal distribution is a special case of the folded normal distribution. Let follow an ordinary normal distribution, . Then, follows a half-normal distribution. Thus, the half-normal distribution is a fold at the mean of an ordinary normal distribution with mean zero. (en)
  • En théorie des probabilités et en statistique, la loi demi-normale est un cas particulier de la loi normale repliée. Soit une variable aléatoire de loi normale centrée, , alors est de loi demi-normale. En particulier, la loi demi-normale est une loi normale repliée de paramètre 0 et . (fr)
cdf
  • , where denotes the lower incomplete gamma function. (en)
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parameters
  • (en)
pdf
  • , where denotes the Fox-Wright Psi function. (en)
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