@stdlib/stats
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Standard library statistical functions.
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{{alias}}( [k] )
Returns a chi distribution object.
Parameters
----------
k: number (optional)
Degrees of freedom. Must be greater than `0`. Default: `1.0`.
Returns
-------
chi: Object
Distribution instance.
chi.k: number
Degrees of freedom. If set, the value must be greater than `0`.
chi.entropy: number
Read-only property which returns the differential entropy.
chi.kurtosis: number
Read-only property which returns the excess kurtosis.
chi.mean: number
Read-only property which returns the expected value.
chi.mode: number
Read-only property which returns the mode.
chi.skewness: number
Read-only property which returns the skewness.
chi.stdev: number
Read-only property which returns the standard deviation.
chi.variance: number
Read-only property which returns the variance.
chi.cdf: Function
Evaluates the cumulative distribution function (CDF).
chi.logpdf: Function
Evaluates the natural logarithm of the probability density function
(PDF).
chi.pdf: Function
Evaluates the probability density function (PDF).
chi.quantile: Function
Evaluates the quantile function at probability `p`.
Examples
--------
> var chi = {{alias}}( 6.0 );
> chi.k
6.0
> chi.entropy
~1.04
> chi.kurtosis
~0.025
> chi.mean
~2.35
> chi.mode
~2.236
> chi.skewness
~0.318
> chi.stdev
~0.691
> chi.variance
~0.478
> chi.cdf( 1.0 )
~0.014
> chi.logpdf( 1.5 )
~-1.177
> chi.pdf( 1.5 )
~0.308
> chi.quantile( 0.5 )
~2.313
See Also
--------