scipy.special.fdtrc

scipy.special.fdtrc(dfn, dfd, x, out=None) = <ufunc 'fdtrc'>

F survival function.

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

Parameters

dfnarray_like

First parameter (positive float).

dfdarray_like

Second parameter (positive float).

xarray_like

Argument (nonnegative float).

outndarray, optional

Optional output array for the function values

Returns

yscalar or 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 [1] routine fdtrc.

References

1

Cephes Mathematical Functions Library, http://www.netlib.org/cephes/