# scipy.special.nctdtridf

scipy.special.nctdtridf(p, nc, t, out=None) = <ufunc 'nctdtridf'>

  Calculate degrees of freedom for non-central t distribution.

  See `nctdtr` for more details.

  Parameters:
    p array_like

      CDF values, in range (0, 1].

    nc array_like

      Noncentrality parameter. Should be in range (-1e6, 1e6).

    t array_like

      Quantiles, i.e., the upper limit of integration.

    out ndarray, optional

      Optional output array for the function results

  Returns:
    cdf scalar or ndarray

      The calculated CDF. If all inputs are scalar, the return will be a float. Otherwise, it will be an array.

  See also

  `nctdtr`

    CDF of the non-central t distribution.

  `nctdtrit`

    Inverse CDF (iCDF) of the non-central t distribution.

  `nctdtrinc`

    Calculate non-centrality parameter, given CDF iCDF values.