variance ratio 方差比率 ; 变异数比
variance ratio test [数] 方差比检定 ; 检验 ; 变异数比率检定
materials price variance ratio 材料价格差异率
variance ratio distribution [数] 方差比分布 ; 变异数比分布
simultaneous variance ratio test 联立变异数比检定 ; 联合方差比检验
unexplained variance ratio [经] 未解释的方差比
The generalized variance ratio is a measure of efficiency.
广义方差比是一个效率度量。
Besides, the relations between variance ratio and correlation coefficient and between W-K statistics and correlation coefficient are found.
此外，找到了方差比，W - K统计量与相关系数之间的精确关系。
Through variance ratio test, we find the Chinese warrant markets do not reach weak form market efficiency, and simple trading rules of technique analysis prove some kind of efficacy.
通过方差比检验，我们发现中国权证市场不具弱有效性，简单交易规则一定程度上能在权证市场中有效预测。
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