离差
1.As a measure of risk, mean absolute deviation is better than variance in a sense.
5.A Portfolio Optimization Model of Banking Asset Based on the Adjusted Credit Grade and the Semivariance Absolute Deviation
6.The paper raises a mean—absolute deviation porfolio optimal selection model on account of the historical return data.
7.It is usually measured by calculating the standard deviation of the historical returns or average returns of a specific investment.
8.Water waves. Derivation of the equations and linearization. Notions of dispersion and group speed. Weak nonlinearity and solitary waves. Perturbation expansions.
9.The difference, especially the absolute difference, between one number in a set and the mean of the set.
