(PECL stats >= 1.0.0)
stats_dens_f — Probability density function of the F distribution
Returns the probability density at x
, where the
random variable follows the F distribution of which the degree of freedoms
are dfr1
and dfr2
.
x
The value at which the probability density is calculated
dfr1
The degree of freedom of the distribution
dfr2
The degree of freedom of the distribution
The probability density at x
or false
for failure.