SciPy

scipy.special.fdtrc

scipy.special.fdtrc(dfn, dfd, x) = <ufunc 'fdtrc'>

F survival function.

Returns the complemented F-distribution function (the integral of the density from x to infinity).

Parameters:

dfn : array_like

First parameter (positive float).

dfd : array_like

Second parameter (positive float).

x : array_like

Argument (nonnegative float).

Returns:

y : ndarray

The complemented F-distribution function with parameters dfn and dfd at x.

See also

fdtr

Notes

The regularized incomplete beta function is used, according to the formula,

\[F(d_n, d_d; x) = I_{d_d/(d_d + xd_n)}(d_d/2, d_n/2).\]

Wrapper for the Cephes [R353] routine fdtrc.

References

[R353](1, 2) Cephes Mathematical Functions Library, http://www.netlib.org/cephes/index.html

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