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{{alias}}( [μ, s] )
Returns a raised cosine distribution object.
Parameters
----------
μ: number (optional)
Location parameter. Default: `0.0`.
s: number (optional)
Scale parameter. Must be greater than `0`. Default: `1.0`.
Returns
-------
cosine: Object
Distribution instance.
cosine.mu: number
Location parameter.
cosine.s: number
Scale parameter. If set, the value must be greater than `0`.
cosine.kurtosis: number
Read-only property which returns the excess kurtosis.
cosine.mean: number
Read-only property which returns the expected value.
cosine.median: number
Read-only property which returns the median.
cosine.mode: number
Read-only property which returns the mode.
cosine.skewness: number
Read-only property which returns the skewness.
cosine.stdev: number
Read-only property which returns the standard deviation.
cosine.variance: number
Read-only property which returns the variance.
cosine.cdf: Function
Evaluates the cumulative distribution function (CDF).
cosine.logcdf: Function
Evaluates the natural logarithm of the cumulative distribution function
(CDF).
cosine.logpdf: Function
Evaluates the natural logarithm of the probability density function
(PDF).
cosine.mgf: Function
Evaluates the moment-generating function (MGF).
cosine.pdf: Function
Evaluates the probability density function (PDF).
cosine.quantile: Function
Evaluates the quantile function at probability `p`.
Examples
--------
> var cosine = {{alias}}( -2.0, 3.0 );
> cosine.mu
-2.0
> cosine.s
3.0
> cosine.kurtosis
~-0.594
> cosine.mean
-2.0
> cosine.median
-2.0
> cosine.mode
-2.0
> cosine.skewness
0.0
> cosine.stdev
~1.085
> cosine.variance
~1.176
> cosine.cdf( 0.5 )
~0.996
> cosine.logcdf( 0.5 )
~-0.004
> cosine.logpdf( -1.0 )
~-1.386
> cosine.mgf( 0.2 )
~0.686
> cosine.pdf( -2.0 )
~0.333
> cosine.quantile( 0.9 )
~-0.553
See Also
--------
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