离差系数

基于离差系数转化法的齿轮传动稳健优化设计

Robust Optimal Design of Gear Driver Based on Coefficient of Variation

分析了反映可降水多年变化的离差系数及其地理分布；

The coefficient of variation of precipitable water has been analysed and it presets seasonal variation .

以人均GDP为指标，采用标准差、离差系数、偏态系数，定量分析了重庆直辖以来区域经济差异的变化，获得了GDP增长率与经济差异之间的关系曲线，并对其进行了分析。

The changes of the regional economic difference of Chongqing are analyzed in the paper with per capita GDP , the standard deviation , coefficient of deviation and coefficient of skewness . Also , the causes and current situation of Chongqing province regional economic are analyzed .

随后，又探讨了属性值为三元区间数，属性权重未知情况下的多属性决策方法。给出了基于方案总偏差最大原则的离差法的权重系数的求法。

In addition , it also explores into the multi-attribute decision methods with unknown attribute value of ternary interval number and the attribute weight , and comes up with the method of weighting coefficients based on deviation method .