Half-normal distribution
= Half-normal distribution
{wiki}
The absolute value of a standard normal random variable has density
$$
\sqrt{\frac2\pi}e^{-x^2/2}\mathbf1_{x\geq0}.
$$
= Half-normal distribution
{wiki}
The absolute value of a standard normal random variable has density
$$
\sqrt{\frac2\pi}e^{-x^2/2}\mathbf1_{x\geq0}.
$$