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NAME

       PDL::GSL::CDF - PDL interface to GSL Cumulative Distribution Functions

DESCRIPTION

       This is an interface to the Cumulative Distribution Function package present in the GNU
       Scientific Library.

       Let us have a continuous random number distributions are defined by a probability density
       function p(x).

       The cumulative distribution function for the lower tail P(x) is defined by the integral of
       p(x), and gives the probability of a variate taking a value less than "x". These functions
       are named cdf_NNNNNNN_P().

       The cumulative distribution function for the upper tail Q(x) is defined by the integral of
       p(x), and gives the probability of a variate taking a value greater than "x". These
       functions are named cdf_NNNNNNN_Q().

       The upper and lower cumulative distribution functions are related by "P(x) + Q(x) = 1" and
       satisfy "0 <= P(x) <= 1" and "0 <= Q(x) <= 1".

       The inverse cumulative distributions, "x = Pinv(P)" and "x = Qinv(Q)" give the values of
       "x" which correspond to a specific value of "P" or "Q". They can be used to find
       confidence limits from probability values.  These functions are named cdf_NNNNNNN_Pinv()
       and cdf_NNNNNNN_Qinv().

       For discrete distributions the probability of sampling the integer value "k" is given by
       p(k), where "sum_k p(k) = 1". The cumulative distribution for the lower tail P(k) of a
       discrete distribution is defined as, where the sum is over the allowed range of the
       distribution less than or equal to "k".

       The cumulative distribution for the upper tail of a discrete distribution Q(k) is defined
       as giving the sum of probabilities for all values greater than "k". These two definitions
       satisfy the identity "P(k) + Q(k) = 1".

       If the range of the distribution is 1 to "n" inclusive then "P(n) = 1", "Q(n) = 0" while
       "P(1) = p(1)", "Q(1) = 1 - p(1)".

SYNOPSIS

           use PDL;
           use PDL::GSL::CDF;

           my $p = gsl_cdf_tdist_P( $t, $df );

           my $t = gsl_cdf_tdist_Pinv( $p, $df );

FUNCTIONS

   The Beta Distribution (gsl_cdf_beta_*)
       These functions compute the cumulative distribution functions P(x), Q(x) and their
       inverses for the beta distribution with parameters a and b.

   gsl_cdf_beta_P
         Signature: (double x(); double a(); double b();  [o]out())

       gsl_cdf_beta_P processes bad values.  It will set the bad-value flag of all output piddles
       if the flag is set for any of the input piddles.

   gsl_cdf_beta_Pinv
         Signature: (double p(); double a(); double b();  [o]out())

       gsl_cdf_beta_Pinv processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_beta_Q
         Signature: (double x(); double a(); double b();  [o]out())

       gsl_cdf_beta_Q processes bad values.  It will set the bad-value flag of all output piddles
       if the flag is set for any of the input piddles.

   gsl_cdf_beta_Qinv
         Signature: (double q(); double a(); double b();  [o]out())

       gsl_cdf_beta_Qinv processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   The Binomial Distribution (gsl_cdf_binomial_*)
       These functions compute the cumulative distribution functions P(k), Q(k) for the binomial
       distribution with parameters p and n.

   gsl_cdf_binomial_P
         Signature: (ushort k(); double p(); ushort n();  [o]out())

       gsl_cdf_binomial_P processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_binomial_Q
         Signature: (ushort k(); double p(); ushort n();  [o]out())

       gsl_cdf_binomial_Q processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   The Cauchy Distribution (gsl_cdf_cauchy_*)
       These functions compute the cumulative distribution functions P(x), Q(x) and their
       inverses for the Cauchy distribution with scale parameter a.

   gsl_cdf_cauchy_P
         Signature: (double x(); double a();  [o]out())

       gsl_cdf_cauchy_P processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_cauchy_Pinv
         Signature: (double p(); double a();  [o]out())

       gsl_cdf_cauchy_Pinv processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_cauchy_Q
         Signature: (double x(); double a();  [o]out())

       gsl_cdf_cauchy_Q processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_cauchy_Qinv
         Signature: (double q(); double a();  [o]out())

       gsl_cdf_cauchy_Qinv processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   The Chi-squared Distribution (gsl_cdf_chisq_*)
       These functions compute the cumulative distribution functions P(x), Q(x) and their
       inverses for the chi-squared distribution with nu degrees of freedom.

   gsl_cdf_chisq_P
         Signature: (double x(); double nu();  [o]out())

       gsl_cdf_chisq_P processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_chisq_Pinv
         Signature: (double p(); double nu();  [o]out())

       gsl_cdf_chisq_Pinv processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_chisq_Q
         Signature: (double x(); double nu();  [o]out())

       gsl_cdf_chisq_Q processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_chisq_Qinv
         Signature: (double q(); double nu();  [o]out())

       gsl_cdf_chisq_Qinv processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   The Exponential Distribution (gsl_cdf_exponential_*)
       These functions compute the cumulative distribution functions P(x), Q(x) and their
       inverses for the exponential distribution with mean mu.

   gsl_cdf_exponential_P
         Signature: (double x(); double mu();  [o]out())

       gsl_cdf_exponential_P processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_exponential_Pinv
         Signature: (double p(); double mu();  [o]out())

       gsl_cdf_exponential_Pinv processes bad values.  It will set the bad-value flag of all
       output piddles if the flag is set for any of the input piddles.

   gsl_cdf_exponential_Q
         Signature: (double x(); double mu();  [o]out())

       gsl_cdf_exponential_Q processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_exponential_Qinv
         Signature: (double q(); double mu();  [o]out())

       gsl_cdf_exponential_Qinv processes bad values.  It will set the bad-value flag of all
       output piddles if the flag is set for any of the input piddles.

   The Exponential Power Distribution (gsl_cdf_exppow_*)
       These functions compute the cumulative distribution functions P(x), Q(x) for the
       exponential power distribution with parameters a and b.

   gsl_cdf_exppow_P
         Signature: (double x(); double a(); double b();  [o]out())

       gsl_cdf_exppow_P processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_exppow_Q
         Signature: (double x(); double a(); double b();  [o]out())

       gsl_cdf_exppow_Q processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   The F-distribution (gsl_cdf_fdist_*)
       These functions compute the cumulative distribution functions P(x), Q(x) and their
       inverses for the F-distribution with nu1 and nu2 degrees of freedom.

   gsl_cdf_fdist_P
         Signature: (double x(); double nua(); double nub();  [o]out())

       gsl_cdf_fdist_P processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_fdist_Pinv
         Signature: (double p(); double nua(); double nub();  [o]out())

       gsl_cdf_fdist_Pinv processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_fdist_Q
         Signature: (double x(); double nua(); double nub();  [o]out())

       gsl_cdf_fdist_Q processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_fdist_Qinv
         Signature: (double q(); double nua(); double nub();  [o]out())

       gsl_cdf_fdist_Qinv processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   The Flat (Uniform) Distribution (gsl_cdf_flat_*)
       These functions compute the cumulative distribution functions P(x), Q(x) and their
       inverses for a uniform distribution from a to b.

   gsl_cdf_flat_P
         Signature: (double x(); double a(); double b();  [o]out())

       gsl_cdf_flat_P processes bad values.  It will set the bad-value flag of all output piddles
       if the flag is set for any of the input piddles.

   gsl_cdf_flat_Pinv
         Signature: (double p(); double a(); double b();  [o]out())

       gsl_cdf_flat_Pinv processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_flat_Q
         Signature: (double x(); double a(); double b();  [o]out())

       gsl_cdf_flat_Q processes bad values.  It will set the bad-value flag of all output piddles
       if the flag is set for any of the input piddles.

   gsl_cdf_flat_Qinv
         Signature: (double q(); double a(); double b();  [o]out())

       gsl_cdf_flat_Qinv processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   The Gamma Distribution (gsl_cdf_gamma_*)
       These functions compute the cumulative distribution functions P(x), Q(x) and their
       inverses for the gamma distribution with parameters a and b.

   gsl_cdf_gamma_P
         Signature: (double x(); double a(); double b();  [o]out())

       gsl_cdf_gamma_P processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_gamma_Pinv
         Signature: (double p(); double a(); double b();  [o]out())

       gsl_cdf_gamma_Pinv processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_gamma_Q
         Signature: (double x(); double a(); double b();  [o]out())

       gsl_cdf_gamma_Q processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_gamma_Qinv
         Signature: (double q(); double a(); double b();  [o]out())

       gsl_cdf_gamma_Qinv processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   The Gaussian Distribution (gsl_cdf_gaussian_*)
       These functions compute the cumulative distribution functions P(x), Q(x) and their
       inverses for the Gaussian distribution with standard deviation sigma.

   gsl_cdf_gaussian_P
         Signature: (double x(); double sigma();  [o]out())

       gsl_cdf_gaussian_P processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_gaussian_Pinv
         Signature: (double p(); double sigma();  [o]out())

       gsl_cdf_gaussian_Pinv processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_gaussian_Q
         Signature: (double x(); double sigma();  [o]out())

       gsl_cdf_gaussian_Q processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_gaussian_Qinv
         Signature: (double q(); double sigma();  [o]out())

       gsl_cdf_gaussian_Qinv processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   The Geometric Distribution (gsl_cdf_geometric_*)
       These functions compute the cumulative distribution functions P(k), Q(k) for the geometric
       distribution with parameter p.

   gsl_cdf_geometric_P
         Signature: (ushort k(); double p();  [o]out())

       gsl_cdf_geometric_P processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_geometric_Q
         Signature: (ushort k(); double p();  [o]out())

       gsl_cdf_geometric_Q processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   The Type-1 Gumbel Distribution (gsl_cdf_gumbel1_*)
       These functions compute the cumulative distribution functions P(x), Q(x) and their
       inverses for the Type-1 Gumbel distribution with parameters a and b.

   gsl_cdf_gumbel1_P
         Signature: (double x(); double a(); double b();  [o]out())

       gsl_cdf_gumbel1_P processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_gumbel1_Pinv
         Signature: (double p(); double a(); double b();  [o]out())

       gsl_cdf_gumbel1_Pinv processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_gumbel1_Q
         Signature: (double x(); double a(); double b();  [o]out())

       gsl_cdf_gumbel1_Q processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_gumbel1_Qinv
         Signature: (double q(); double a(); double b();  [o]out())

       gsl_cdf_gumbel1_Qinv processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   The Type-2 Gumbel Distribution (gsl_cdf_gumbel2_*)
       These functions compute the cumulative distribution functions P(x), Q(x) and their
       inverses for the Type-2 Gumbel distribution with parameters a and b.

   gsl_cdf_gumbel2_P
         Signature: (double x(); double a(); double b();  [o]out())

       gsl_cdf_gumbel2_P processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_gumbel2_Pinv
         Signature: (double p(); double a(); double b();  [o]out())

       gsl_cdf_gumbel2_Pinv processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_gumbel2_Q
         Signature: (double x(); double a(); double b();  [o]out())

       gsl_cdf_gumbel2_Q processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_gumbel2_Qinv
         Signature: (double q(); double a(); double b();  [o]out())

       gsl_cdf_gumbel2_Qinv processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   The Hypergeometric Distribution (gsl_cdf_hypergeometric_*)
       These functions compute the cumulative distribution functions P(k), Q(k) for the
       hypergeometric distribution with parameters n1, n2 and t.

   gsl_cdf_hypergeometric_P
         Signature: (ushort k(); ushort na(); ushort nb(); ushort t();  [o]out())

       gsl_cdf_hypergeometric_P processes bad values.  It will set the bad-value flag of all
       output piddles if the flag is set for any of the input piddles.

   gsl_cdf_hypergeometric_Q
         Signature: (ushort k(); ushort na(); ushort nb(); ushort t();  [o]out())

       gsl_cdf_hypergeometric_Q processes bad values.  It will set the bad-value flag of all
       output piddles if the flag is set for any of the input piddles.

   The Laplace Distribution (gsl_cdf_laplace_*)
       These functions compute the cumulative distribution functions P(x), Q(x) and their
       inverses for the Laplace distribution with width a.

   gsl_cdf_laplace_P
         Signature: (double x(); double a();  [o]out())

       gsl_cdf_laplace_P processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_laplace_Pinv
         Signature: (double p(); double a();  [o]out())

       gsl_cdf_laplace_Pinv processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_laplace_Q
         Signature: (double x(); double a();  [o]out())

       gsl_cdf_laplace_Q processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_laplace_Qinv
         Signature: (double q(); double a();  [o]out())

       gsl_cdf_laplace_Qinv processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   The Logistic Distribution (gsl_cdf_logistic_*)
       These functions compute the cumulative distribution functions P(x), Q(x) and their
       inverses for the logistic distribution with scale parameter a.

   gsl_cdf_logistic_P
         Signature: (double x(); double a();  [o]out())

       gsl_cdf_logistic_P processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_logistic_Pinv
         Signature: (double p(); double a();  [o]out())

       gsl_cdf_logistic_Pinv processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_logistic_Q
         Signature: (double x(); double a();  [o]out())

       gsl_cdf_logistic_Q processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_logistic_Qinv
         Signature: (double q(); double a();  [o]out())

       gsl_cdf_logistic_Qinv processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   The Lognormal Distribution (gsl_cdf_lognormal_*)
       These functions compute the cumulative distribution functions P(x), Q(x) and their
       inverses for the lognormal distribution with parameters zeta and sigma.

   gsl_cdf_lognormal_P
         Signature: (double x(); double zeta(); double sigma();  [o]out())

       gsl_cdf_lognormal_P processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_lognormal_Pinv
         Signature: (double p(); double zeta(); double sigma();  [o]out())

       gsl_cdf_lognormal_Pinv processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_lognormal_Q
         Signature: (double x(); double zeta(); double sigma();  [o]out())

       gsl_cdf_lognormal_Q processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_lognormal_Qinv
         Signature: (double q(); double zeta(); double sigma();  [o]out())

       gsl_cdf_lognormal_Qinv processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_negative_binomial_P
         Signature: (ushort k(); double p(); double n();  [o]out())

       gsl_cdf_negative_binomial_P processes bad values.  It will set the bad-value flag of all
       output piddles if the flag is set for any of the input piddles.

   gsl_cdf_negative_binomial_Q
         Signature: (ushort k(); double p(); double n();  [o]out())

       gsl_cdf_negative_binomial_Q processes bad values.  It will set the bad-value flag of all
       output piddles if the flag is set for any of the input piddles.

   The Pareto Distribution (gsl_cdf_pareto_*)
       These functions compute the cumulative distribution functions P(x), Q(x) and their
       inverses for the Pareto distribution with exponent a and scale b.

   gsl_cdf_pareto_P
         Signature: (double x(); double a(); double b();  [o]out())

       gsl_cdf_pareto_P processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_pareto_Pinv
         Signature: (double p(); double a(); double b();  [o]out())

       gsl_cdf_pareto_Pinv processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_pareto_Q
         Signature: (double x(); double a(); double b();  [o]out())

       gsl_cdf_pareto_Q processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_pareto_Qinv
         Signature: (double q(); double a(); double b();  [o]out())

       gsl_cdf_pareto_Qinv processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   The Pascal Distribution (gsl_cdf_pascal_*)
       These functions compute the cumulative distribution functions P(k), Q(k) for the Pascal
       distribution with parameters p and n.

   gsl_cdf_pascal_P
         Signature: (ushort k(); double p(); ushort n();  [o]out())

       gsl_cdf_pascal_P processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_pascal_Q
         Signature: (ushort k(); double p(); ushort n();  [o]out())

       gsl_cdf_pascal_Q processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   The Poisson Distribution (gsl_cdf_poisson_*)
       These functions compute the cumulative distribution functions P(k), Q(k) for the Poisson
       distribution with parameter mu.

   gsl_cdf_poisson_P
         Signature: (ushort k(); double mu();  [o]out())

       gsl_cdf_poisson_P processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_poisson_Q
         Signature: (ushort k(); double mu();  [o]out())

       gsl_cdf_poisson_Q processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   The Rayleigh Distribution (gsl_cdf_rayleigh_*)
       These functions compute the cumulative distribution functions P(x), Q(x) and their
       inverses for the Rayleigh distribution with scale parameter sigma.

   gsl_cdf_rayleigh_P
         Signature: (double x(); double sigma();  [o]out())

       gsl_cdf_rayleigh_P processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_rayleigh_Pinv
         Signature: (double p(); double sigma();  [o]out())

       gsl_cdf_rayleigh_Pinv processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_rayleigh_Q
         Signature: (double x(); double sigma();  [o]out())

       gsl_cdf_rayleigh_Q processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_rayleigh_Qinv
         Signature: (double q(); double sigma();  [o]out())

       gsl_cdf_rayleigh_Qinv processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   The t-distribution (gsl_cdf_tdist_*)
       These functions compute the cumulative distribution functions P(x), Q(x) and their
       inverses for the t-distribution with nu degrees of freedom.

   gsl_cdf_tdist_P
         Signature: (double x(); double nu();  [o]out())

       gsl_cdf_tdist_P processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_tdist_Pinv
         Signature: (double p(); double nu();  [o]out())

       gsl_cdf_tdist_Pinv processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_tdist_Q
         Signature: (double x(); double nu();  [o]out())

       gsl_cdf_tdist_Q processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_tdist_Qinv
         Signature: (double q(); double nu();  [o]out())

       gsl_cdf_tdist_Qinv processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   The Unit Gaussian Distribution (gsl_cdf_ugaussian_*)
       These functions compute the cumulative distribution functions P(x), Q(x) and their
       inverses for the unit Gaussian distribution.

   gsl_cdf_ugaussian_P
         Signature: (double x();  [o]out())

       gsl_cdf_ugaussian_P processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_ugaussian_Pinv
         Signature: (double p();  [o]out())

       gsl_cdf_ugaussian_Pinv processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_ugaussian_Q
         Signature: (double x();  [o]out())

       gsl_cdf_ugaussian_Q processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_ugaussian_Qinv
         Signature: (double q();  [o]out())

       gsl_cdf_ugaussian_Qinv processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   The Weibull Distribution (gsl_cdf_weibull_*)
       These functions compute the cumulative distribution functions P(x), Q(x) and their
       inverses for the Weibull distribution with scale a and exponent b.

   gsl_cdf_weibull_P
         Signature: (double x(); double a(); double b();  [o]out())

       gsl_cdf_weibull_P processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_weibull_Pinv
         Signature: (double p(); double a(); double b();  [o]out())

       gsl_cdf_weibull_Pinv processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_weibull_Q
         Signature: (double x(); double a(); double b();  [o]out())

       gsl_cdf_weibull_Q processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

   gsl_cdf_weibull_Qinv
         Signature: (double q(); double a(); double b();  [o]out())

       gsl_cdf_weibull_Qinv processes bad values.  It will set the bad-value flag of all output
       piddles if the flag is set for any of the input piddles.

AUTHOR

       Copyright (C) 2009 Maggie J. Xiong <maggiexyz users.sourceforge.net>

       The GSL CDF module was written by J. Stover.

       All rights reserved. There is no warranty. You are allowed to redistribute this software /
       documentation as described in the file COPYING in the PDL distribution.