kurtosis

(redirected from Leptokurtic distribution)
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Related to Leptokurtic distribution: Mesokurtic, skewness, Excess kurtosis

kurtosis

 [ker-to´sis]
the degree of peakedness or flatness of a probability distribution, relative to the normal distribution with the same variance. See illustration.
Kurtosis. From Dorland's, 2000.

kur·to·sis

(kŭr-tō'sis),
The extent to which a unimodal distribution is peaked.
[G., an arching]

kurtosis

[kerto′sis]
the degree of peakedness or flatness of a probability distribution relative to the normal distribution with the same variance.

kurtosis

the quality of peakedness in a unimodal distribution. Abnormalities are leptokurtosis where values are clustered about the mean and the tails of the curve, and platykurtosis where the clustering produces a plateau-shaped curve.
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References in periodicals archive ?
In fact, the leptokurtic distribution of these variables is ubiquitous (Mishkin, 2009; Orlowski, 2010b).
Removing cannibalism from the model creates far more leptokurtic distributions without passing through the bimodal phase.
1--keeping the Gaussian shape, but altering the kurtosis parameter of a normal distribution, becoming, in fact, a normal shaped leptokurtic distribution.