Beta inverse cumulative distribution function
x = betaincinv(y,z,w)
x = betaincinv(y,z,w,tail)
x = betaincinv(y,z,w) computes the inverse
incomplete beta function for corresponding elements of
w, such that
y = betainc(x,z,w).
The elements of
y must be in the closed interval
[0,1], and those of
all be real and the same size (or any of them can be scalar).
x = betaincinv(y,z,w,tail) specifies the
tail of the incomplete beta function. Choices are
default) to use the integral from 0 to
use the integral from
x to 1. These two choices
are related as follows:
betaincinv(y,z,w,'upper') = betaincinv(1-y,z,w,'lower').
y is close to 0, the
provides a way to compute
x more accurately than
y from 1.
The incomplete beta function is defined as
betaincinv computes the inverse of the
incomplete beta function with respect to the integration limit
This function fully supports tall arrays. For more information, see Tall Arrays.