stats_cdf_gamma
(PECL stats >= 1.0.0)
stats_cdf_gamma — Calculates any one parameter of the gamma distribution given values for the others
Beschreibung
float
$par1
,float
$par2
,float
$par3
,int
$which
): float
Returns the cumulative distribution function, its inverse, or one of its parameters,
of the gamma distribution. The kind of the return value and parameters
(par1
, par2
, and par3
)
are determined by which
.
The following table lists the return value and parameters by which
.
CDF, x, k, and theta denotes cumulative distribution function, the value of the random
variable, and the shape and the scale parameter of the gamma distribution, respectively.
which |
Return value | par1 |
par2 |
par3 |
---|---|---|---|---|
1 | CDF | x | k | theta |
2 | x | CDF | k | theta |
3 | k | x | CDF | theta |
4 | theta | x | CDF | k |
Parameter-Liste
-
par1
-
The first parameter
-
par2
-
The second parameter
-
par3
-
The third parameter
-
which
-
The flag to determine what to be calculated
Rückgabewerte
Returns CDF, x, k, or theta, determined by which
.