The Logistic Distribution
Random:
double
gsl_ran_logistic
(const gsl_rng *
r
, double
a
)
This function returns a random variate from the logistic distribution. The distribution function is,
p(x) dx = { \exp(-x/a) \over a (1 + \exp(-x/a))^2 } dx
for -\infty < x < +\infty.
Function:
double
gsl_ran_logistic_pdf
(double
x
, double
a
)
This function computes the probability density p(x) at
x
for a logistic distribution with scale parameter
a
, using the formula given above.