(PECL stats >= 1.0.0) Generates a random deviate from the noncentral F (variance ratio) distribution with "dfn" degrees of freedom in the numerator, and "dfd" degrees of freedom in the denominator, and noncentrality parameter "xnonc". Method : directly generates ratio of noncentral numerator chisquare variate to central denominator chisquare variate. float stats_rand_gen_noncentral_f ( float $dfn, float $dfd, float $xnonc )

(PECL stats >= 1.0.0) Generates random deviate from the distribution of a noncentral chisquare with "df" degrees of freedom and noncentrality parameter "xnonc". d must be >= 1.0, xnonc must >= 0.0 float stats_rand_gen_noncenral_chisquare ( float $df, float $xnonc ) Parameters: df xnonc Returns:

(PECL stats >= 1.0.0) Generates integer uniformly distributed between LOW (inclusive) and HIGH (inclusive) int stats_rand_gen_iuniform ( int $low, int $high ) Parameters: low high Returns: This function is currently not documented; only its argument list is available.

(PECL stats >= 1.0.0) Generates a single random deviate from a Poisson distribution with mean "mu" (mu >= 0.0). int stats_rand_gen_ipoisson ( float $mu ) Parameters: mu Returns: This function is currently not documented; only its argument list is available.

(PECL stats >= 1.0.0) Generates random integer between 1 and 2147483562 int stats_rand_gen_int ( void ) Returns: This function is currently not documented; only its argument list is available.

(PECL stats >= 1.0.0) Generates a single random deviate from a binomial distribution whose number of trials is "n" (n >= 0) and whose probability of an event in each trial is "pp" ([0;1]). Method : algorithm BTPE int stats_rand_gen_ibinomial ( int $n, float $pp ) Parameters: n pp Returns:

(PECL stats >= 1.0.0) Generates a single random deviate from a negative binomial distribution. Arguments : n - the number of trials in the negative binomial distribution from which a random deviate is to be generated (n > 0), p - the probability of an event (0 < p < 1)). int stats_rand_gen_ibinomial_negative ( int $n, float $p ) Parameters: n

(PECL stats >= 1.0.0) Generates random deviates from a gamma distribution float stats_rand_gen_gamma ( float $a, float $r ) Generates random deviates from the gamma distribution whose density is (A**R)/Gamma(R) * X**(R-1) * Exp(-A*X). Parameters: a location parameter of Gamma distribution (a > 0). r shape parameter of Gamma distri

(PECL stats >= 1.0.0) Generates uniform float between low (exclusive) and high (exclusive) float stats_rand_gen_funiform ( float $low, float $high ) Parameters: low high Returns: This function is currently not documented; only its argument list is available.

(PECL stats >= 1.0.0) Generates a random deviate float stats_rand_gen_f ( float $dfn, float $dfd ) Generates a random deviate from the F (variance ratio) distribution with "dfn" degrees of freedom in the numerator and "dfd" degrees of freedom in the denominator. Method : directly generates ratio of chisquare variates. Parameters: dfn Generates a random deviate from the