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Science版 - Re: third-moment, fourth-moment of statistics
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z**f
发帖数: 6
1

in physics, if your system is nonlinear,skewness will exaggerate the
nonliner/nonsymetric part, which are the points far away from the average and
others. compare a system with all kinds of linear oscillations to a nonlinear
system, you may see the difference. to know exact physical meaning, you need
to add nonlinear terms in the model, and make your assumption
reasonable/result acceptable. kurtosis is different, but can be understand
similiarly.
if you don't have a model. you are shooting a
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