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# scipy.special.chndtrix

scipy.special.chndtrix(p, df, nc, out=None) = <ufunc 'chndtrix'>

  Inverse to `chndtr` vs x

  Calculated using a search to find a value for x that produces the desired value of p.

  Parameters:
    parray_like

      Probability; must satisfy `0 <= p < 1`

    dfarray_like

      Degrees of freedom; must satisfy `df > 0`

    ncarray_like

      Non-centrality parameter; must satisfy `nc >= 0`

    outndarray, optional

      Optional output array for the function results

  Returns:
    xscalar or ndarray

      Value so that the probability a non-central Chi square random variable with df degrees of freedom and non-centrality, nc, is greater than x equals p.

  See also

  `chndtr`, `chndtridf`, `chndtrinc`