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The Exponential Power Distribution

Random: double gsl_ran_exppow (const gsl_rng * r, double a, double b)
This function returns a random variate from the exponential power distribution with scale parameter a and exponent b. The distribution is,

for @c{$x \ge 0$} @math{x >= 0}. For @math{b = 1} this reduces to the Laplace distribution. For @math{b = 2} it has the same form as a gaussian distribution, but with @c{$a = \sqrt{2} \sigma$} @math{a = \sqrt{2} \sigma}.

Function: double gsl_ran_exppow_pdf (double x, double a, double b)
This function computes the probability density @math{p(x)} at x for an exponential power distribution with scale parameter a and exponent b, using the formula given above.


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