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 |
|