On the basis of a large number of field test data, the regression of the displacement coefficient and system efficiency for pumping unit wells were established.
本文在抽油机井大量现场测试数据的基础上,建立了抽油机井系统效率、排量系数这两个重要指标与诸影响因素之间的回归方程。
Results show that iterative refinement using the SVD can improve regression coefficient estimates in the cases where the design matrix is highly collinear.
结果表明,在设计矩阵高度共线性时,用奇异值分解的迭代加细可以改进回归系数的估计。
The relation coefficient between regression equation and oxidation curve is over 0.9 and the rules of oxidation - temperature and oxidation - time are parabolas.
由计算得到的氧化回归方程与氧化曲线的相关系数可达到0.9以上,高温氧化烧损量与温度和时间均呈抛物线规律。
Also, we need to know how much individual stocks are correlated with rm; we measure that by the regression coefficient.
我们必须清楚,有多少个股与市场总体收益率相关;,我们用回归系数,即β系数来表示。
Again, I'm not going to spend much time on this, of the ith asset is the regression coefficient when you regress the return on the ith asset on the return of the market portfolio.
再强调一次,我不打算花太多时间在这个等式上面,但要注意的是当你想将市场组合收益,but,the,β,回归到第i资产收益中去,第i资产β系数是线性回归方程的,回归系数。
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