Skip to main content

​
atoti.stats.chi2.cdf(point, /, *, degrees_of_freedom)

Cumulative distribution function for a chi-square distribution.
This feature is experimental, its key is "stats.chi2.cdf".
The cdf of the chi-square distribution with k degrees of freedom is cdf⁡(x)=γ(k2, x2)Γ(k2)\operatorname {{cdf}}(x)=\dfrac {{\gamma (\frac {{k}}{{2}},\,\frac {{x}}{{2}})}}{{\Gamma (\frac {{k}}{{2}})}} where Γ\Gamma is the gamma function and γ\gamma the lower incomplete gamma function.
  • Parameters:
    • point (VariableMeasureConvertible) – The point where the function is evaluated.
    • degrees_of_freedom (StrictlyPositiveNumber | VariableMeasureConvertible) – The number of degrees of freedom. Must be positive.
  • Return type: MeasureDefinition
See also: The Chi-square Wikipedia page.