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BUILT-IN MATHEMATICA SYMBOL
Kurtosis
Kurtosis[list]
gives the coefficient of kurtosis for the elements in list.
Kurtosis[dist]
gives the coefficient of kurtosis for the symbolic distribution dist.
Details
- Kurtosis measures the concentration of data around the peak and in the tails versus the concentration in the flanks.
- A normal distribution has kurtosis
equal to 3. In comparing shapes with normal we have: -
more flat than normal, platykurtic 
like normal, mesokurtic 
more peaked than normal, leptokurtic - Kurtosis handles both numerical and symbolic data.
- Kurtosis[{{x1, y1, ...}, {x2, y2, ...}, ...}] gives
. - Kurtosis works with SparseArray objects.
- Kurtosis[list] is equivalent to CentralMoment[list, 4]/CentralMoment[list, 2]2.
New in 6
