Ncbetacdf
Ncbetacdf-func
Definition:
computes the cdf with the lower tail of the non-central beta distribution. The lower tail probability for the non-central beta distribution with shape parameters
and
and non-centrality parameter
,
is defined by:
/math-f3cf7ccc054b805686c44fc0f54516f0.png)
where
/math-91180ecc9a0bf60887151e06c8dfe3aa.png)
which is the central beta probability function or incomplete beta function.
Parameters:
(intput, double)
- the deviate,
,from the beta distribution, for which
, is to be found./math-690c394ae623b02ce772e4dc74060c48.png)
(input, double)
- the first shape parameter, a, of the required beta distribtution.
/math-239abc3ca0f31d28422b763a13113143.png)
(input, double)
- the second shape parameter, b, of the required beta distribtution.
/math-c861df8d5b91a81fcfe6f7b5ea282376.png)
(input, double)
- the non-centrality parameter,
, of the required beta distribution,
, where
is the safe range parameters as defined by NAG nag_real_safe_small_number (X02AMC). See chapter X02 in the NAG documentation.
(output,double)
- the probability.