`scipy.stats._continuous_distns:halfnorm_gen`

Signature

class halfnorm_gen(momtype = 1, a = None, b = None, xtol = 1e-14, badvalue = None, name = None, longname = None, shapes = None, seed = None)

A half-normal continuous random variable.

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The probability density function for halfnorm is:

f (x) = 2/ π exp (- x^{2} /2)

for $x >= 0$ .

halfnorm is a special case of chi with df=1.

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