`scipy.stats._continuous_distns:fatiguelife_gen`

Signature

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

A fatigue-life (Birnbaum-Saunders) continuous random variable.

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The probability density function for fatiguelife is:

f (x, c) = \frac{x + 1}{2 c 2 π x ^{3}} exp (- \frac{( x - 1 ) ^{2}}{2 x c ^{2}})

for $x >= 0$ and $c > 0$ .

fatiguelife takes c as a shape parameter for $c$ .

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