Rbeta {UCS} | R Documentation |
Computes the regularized Beta function and its inverse. The Beta value can be scaled to a base 10 logarithm.
Rbeta(x, a, b, log=FALSE) Rbeta.inv(y, a, b, log=FALSE)
a, b |
non-negative numeric vectors, the parameters of the regularized Beta function |
x |
a numeric vector with values in the range [0,1], the point at which the regularized Beta function is evaluated |
y |
a numeric vector, the values of the regularized Beta function
(or their base 10 logarithms if log=TRUE ) |
log |
if TRUE , the Beta values are base 10 logarithms
(default: FALSE ) |
The regularized Beta function scales the incomplete Beta function to the interval [0,1], by dividing through B(a,b), i.e.
I(x;a,b) = B(x;a,b) / B(a,b)
Rbeta
returns the regularized Beta function with parameters
(a
,b
) evaluated at point x
.
Rbeta.inv
returns the point x
at which the regularized
Beta function with parameters (a
,b
) evaluates to
y
.
Cgamma
, Igamma
, Rgamma
,
Cbeta
, Ibeta