scipy.special.chndtridf

scipy.special.chndtridf(x, p, nc, out=None) = <ufunc 'chndtridf'>

Inverse to chndtr vs df

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

Parameters:

xarray_like

Upper bound of the integral; must satisfy x >= 0

parray_like

Probability; must satisfy 0 <= p < 1

ncarray_like

Non-centrality parameter; must satisfy nc >= 0

outndarray, optional

Optional output array for the function results

Returns:

dfscalar or ndarray

Degrees of freedom

See also

chndtr, chndtrix, chndtrinc