
{{alias}}( [λ] )
    Returns a Poisson distribution object.

    Parameters
    ----------
    λ: number (optional)
        Mean parameter. Must be greater than `0`. Default: `1.0`.

    Returns
    -------
    poisson: Object
        Distribution instance.

    poisson.lambda: number
        Mean parameter. If set, the value must be greater than `0`.

    poisson.entropy: number
        Read-only property which returns the differential entropy.

    poisson.kurtosis: number
        Read-only property which returns the excess kurtosis.

    poisson.mean: number
        Read-only property which returns the expected value.

    poisson.median: number
        Read-only property which returns the median.

    poisson.mode: number
        Read-only property which returns the mode.

    poisson.skewness: number
        Read-only property which returns the skewness.

    poisson.stdev: number
        Read-only property which returns the standard deviation.

    poisson.variance: number
        Read-only property which returns the variance.

    poisson.cdf: Function
        Evaluates the cumulative distribution function (CDF).

    poisson.logpmf: Function
        Evaluates the natural logarithm of the probability mass function (PMF).

    poisson.mgf: Function
        Evaluates the moment-generating function (MGF).

    poisson.pmf: Function
        Evaluates the probability mass function (PMF).

    poisson.quantile: Function
        Evaluates the quantile function at probability `p`.

    Examples
    --------
    > var poisson = {{alias}}( 6.0 );
    > poisson.lambda
    6.0
    > poisson.entropy
    ~2.3
    > poisson.kurtosis
    ~0.167
    > poisson.mean
    6.0
    > poisson.median
    6.0
    > poisson.mode
    6.0
    > poisson.skewness
    ~0.408
    > poisson.stdev
    ~2.449
    > poisson.variance
    6.0
    > poisson.cdf( 4.0 )
    ~0.285
    > poisson.logpmf( 2.0 )
    ~-3.11
    > poisson.mgf( 0.5 )
    ~49.025
    > poisson.pmf( 2.0 )
    ~0.045
    > poisson.quantile( 0.5 )
    6.0

    See Also
    --------

