kurtosis


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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]
References in periodicals archive ?
[1] Zhao, W., Wei, Y., Shen, Y., CAO, Y., Yuan, Z., Xu, P., and Jian, W., "An efficient algorithm by kurtosis maximization in reference-based framework," Radio engineering, vol.
Para el caso de la industria financiera esta mostro un comportamiento con menor volatilidad en la serie economica, en el caso del portafolio representativo hubo un comportamiento similar, aunque en menor grado, ademas de disminuir las medidas de kurtosis, desviacion estandar y su media.
The waveform of vibration signals can be described with statistical features such as Kurtosis Factor and Crest Factor (Mitchell et al.
The portfolios showed positive and negative asymmetry and excess of kurtosis, facts that make relevant investigating the existence of premiums for these two statistical moments.
In addition to the test of kurtosis to diagnose the status of the channel, we propose the use of other tests instead of the kurtosis: the autocorrelation and the Likelihhod Ratio goodness of fit (LLR GoF) tests.
"A radiomics model based on kurtosis diffusion-weighted imaging performed by using magnetic resonance imaging machines from different vendors allowed for reliable differentiation between malignant and benign breast lesions in both a training and an independent test data set," the authors write.
Mean Variance Std Skewness Kurtosis UL1_Off 80.3636 292.8545 17.1130 -0.2417 2.0475 UL1_On 79 316.8889 17.8014 0.1228 2.3727 TABLE II.
Based on these plots, it is possible to conclude that changes in the additional parameter a have a considerable impact on the skewness and kurtosis of the RBEE distribution, thus showing its greater flexibility.
The international investor need to diversify with as low as possible kurtosis securities in emerging markets.
Four features were computed from the nucleus histogram (mean value, standard deviation, skewness, and kurtosis).