Levy distribution

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Format: VoseVoseLevy(c, a, U)

Levy equations

The Levy distribution, named after Paul Pierre Levy, is one of the few distributions that are stable and that have probability density functions that are analytically expressible. The others are the normal distribution and the Cauchy distribution.

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Uses

The Levy distribution is sometimes used in financial engineering to model price changes because the distribution can take into account the leptokurtosis ('fat' tails) one sometimes empirically observes in price changes on financial markets.

Vose Functions for this distribution

VoseLevy generates values from this distribution or calculates a percentile

VoseLevyObject constructs a distribution object for this distribution

VoseLevyProb returns the probability density or cumulative distribution function for this distribution

VoseLevyProb10 returns the log10 of the probability density or cumulative distribution function  

VoseLevyFit generates values from this distribution fitted to data, or calculates a percentile from the fitted distribution

VoseLevyFitObject constructs a distribution object of this distribution fitted to data

VoseLevyFitP returns the parameters of this distribution fitted to data

See Also