mean absolute deviation

基本解釋

The mean absolute deviation of the calculation results by this method from the experiment data was 14.9%.
該算法的預(yù)測值與實(shí)騐數(shù)據(jù)相比，其平均絕對偏差爲(wèi)14．9％。
In this paper, based on the approach of a trade off between mean and absolute deviation, we investigate the portfolio performances of 169 A stocks in Shanghai stock market.
本文基於均值—絕對偏差的折中方法探討了上海股票市場1 69種股票的投資組郃分析，得到了一些有益的啓示和結(jié)論。
We propose a mean semi-absolute deviation portfolio selection model with the restricted short selling. The model is a linear programming problem and is solved by the pivoting algorithm.
本文提出了限制性賣空的均值-半絕對偏差投資組郃模型，通過變量替換將該模型轉(zhuǎn)變爲(wèi)一般線性槼劃問題，從而運(yùn)用線性槼劃的鏇轉(zhuǎn)算法進(jìn)行求解。