This function returns the value of a student-T-distribution with the total area of 1.
$dfr are the degrees of freedom for that distribution (aka k)
$x is the X-Value for which the value should be returned
PHP - Manual: stats_dens_t
2024-12-26
(PECL stats >= 1.0.0)
stats_dens_t — Probability density function of the t-distribution
$x
, float $dfr
) : float
Returns the probability density at x
, where the
random variable follows the t-distribution of which the degree of
freedom is dfr
.
x
The value at which the probability density is calculated
dfr
The degree of freedom of the distribution
The probability density at x
or FALSE
for failure.
官方地址:https://www.php.net/manual/en/function.stats-dens-t.php