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{{alias}}( p, k )
Evaluates the quantile function for a chi distribution with degrees of
freedom `k` at a probability `p`.
If `p < 0` or `p > 1`, the function returns `NaN`.
If provided `NaN` for any argument, the function returns `NaN`.
If provided `k < 0`, the function returns `NaN`.
Parameters
----------
p: number
Input probability.
k: number
Degrees of freedom.
Returns
-------
out: number
Evaluated quantile function.
Examples
--------
> var y = {{alias}}( 0.8, 1.0 )
~1.282
> y = {{alias}}( 0.5, 4.0 )
~1.832
> y = {{alias}}( 0.8, 0.1 )
~0.116
> y = {{alias}}( -0.2, 0.5 )
NaN
> y = {{alias}}( 1.1, 0.5 )
NaN
> y = {{alias}}( NaN, 1.0 )
NaN
> y = {{alias}}( 0.0, NaN )
NaN
// Negative degrees of freedom:
> y = {{alias}}( 0.5, -1.0 )
NaN
// Degenerate distribution when `k = 0`:
> y = {{alias}}( 0.3, 0.0 )
0.0
> y = {{alias}}( 0.9, 0.0 )
0.0
{{alias}}.factory( k )
Returns a function for evaluating the quantile function of a chi
distribution with degrees of freedom `k`.
Parameters
----------
k: number
Degrees of freedom.
Returns
-------
quantile: Function
Quantile function.
Examples
--------
> var myquantile = {{alias}}.factory( 2.0 );
> var y = myquantile( 0.3 )
~0.845
> y = myquantile( 0.7 )
~1.552
See Also
--------
|
