(PECL stats >= 1.0.0) Generates a single random deviate from an exponential distribution with mean "av" float stats_rand_gen_exponential ( float $av ) Parameters: av Returns: This function is currently not documented; only its argument list is available.

(PECL stats >= 1.0.0) Generates random deviate from the distribution of a chisquare with "df" degrees of freedom random variable. float stats_rand_gen_chisquare ( float $df ) Parameters: df Returns: This function is currently not documented; only its argument list is available.

(PECL stats >= 1.0.0) Generates beta random deviate float stats_rand_gen_beta ( float $a, float $b ) Returns a random deviate from the beta distribution with parameters A and B. The density of the beta is x^(a-1) * (1-x)^(b-1) / B(a,b) for 0 < x <. Method R. C. H. Cheng. Parameters: a Returns a random deviate from the beta distribution with parameters A and B. Th

(PECL stats >= 1.0.0) Computes the kurtosis of the data in the array float stats_kurtosis ( array $a ) Parameters: a Returns: This function is currently not documented; only its argument list is available.

(PECL stats >= 1.0.0) Returns the harmonic mean of an array of values number stats_harmonic_mean ( array $a ) Parameters: a Returns: This function is currently not documented; only its argument list is available.

(PECL stats >= 1.0.0) Not documented float stats_dens_weibull ( float $x, float $a, float $b ) Parameters: x a b Returns: This function is currently not documented; only its argument list is available.

(PECL stats >= 1.0.0) Not documented float stats_dens_t ( float $x, float $dfr ) Parameters: x dfr Returns: This function is currently not documented; only its argument list is available.

(PECL stats >= 1.0.0) Not documented float stats_dens_pmf_poisson ( float $x, float $lb ) Parameters: x lb Returns: This function is currently not documented; only its argument list is available.

(PECL stats >= 1.0.0) float stats_dens_pmf_hypergeometric ( float $n1, float $n2, float $N1, float $N2 ) Parameters: n1 n2 N1 N2 Returns: This function is currently not documented; only its argument list is available.

(PECL stats >= 1.0.0) Not documented float stats_dens_pmf_binomial ( float $x, float $n, float $pi ) Parameters: x n pi Returns: This function is currently not documented; only its argument list is available.