Half-normal distribution

The half-normal distribution is a special case of the folded normal distribution.

Let $X$ follow an ordinary normal distribution, $N(0,\sigma^2)$ , then $Y=|X|$ follows a half-normal distribution. Thus, the half-normal distribution is a fold at the mean of an ordinary normal distribution with mean zero.

单词	Half normal distribution
释义	Half normal distribution 英语百科 Half-normal distribution The half-normal distribution is a special case of the folded normal distribution. Let $X$ follow an ordinary normal distribution, $N(0,\sigma^2)$ , then $Y=\|X\|$ 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

Half-normal distribution