`scipy.stats._continuous_distns:halflogistic_gen`

Signature

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

A half-logistic continuous random variable.

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The probability density function for halflogistic is:

f (x) = \frac{2 e ^{- x}}{( 1 + e ^{- x} ) ^{2}} = \frac{1}{2} sech (x /2)^{2}

for $x \geq 0$ .

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