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。
Select the items through the discrete trend analysis, factor analysis, stepwise regression analysis, discriminant analysis and Crowns Bach coefficient method to the survey result.
通过对调查结果进行离散趋势分析、因子分析、逐步回归分析、判别分析法和克朗巴赫系数法等分析方法筛选条目。
On the basis of a large number of field data, the regression equations of displacement coefficient, down-hole power loss and surface efficiency for pumping wells are established.
本文以大量的现场测试数据为基础，建立了抽油机井排量系数、井下功率损失及地面效率的回归方程；
There were significant differences between all of aged groups in regression coefficient significance tests, except between 18-25 and 26-45 aged group in female.
回归系数显著性检验除女性18 ~25与26 ~45岁两组间无显著性差异外，其他各组间的差异均有高度显著性。
The environmental and economic factors affecting the space component and the time coefficient are sieved by stepwise regression, and factor structure models are established.
用逐步回归方法筛选影响空间分量和时间系数的环境和经济因子，组建因子结构模型。
This paper examines the relationship between inflation rate and economic growth rate in China by using the methods of regression and coefficient test.
通过回归和系数检验实证，分析了我国通货膨胀率与经济增长率之间的关系。
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。
This paper presents regression model with same regression coefficient and different regression constants.
本文讨论回归系数相同，回归常数不同的回归分析模型。
Results: Water iodine content calculated by linear regression equation, multiplied by coefficient of rectification, equals that calculated by index regression equation.
结果利用线性回归方程计算出的水碘含量，通过与校正系数相乘等于指数回归方程计算出的水碘含量。
The regression coefficient between corneal power and the refractive error increased from apex to peripheral area.
角膜中央到周边曲率与等效球镜度的回归系数逐渐增加。
The regression catch model incorporating fishing effort and selected environmental variables has a correlation coefficient of 0.97 and a level of confidence of 99%.
包含捕捞努力量和环境变量的渔获量模型的回归系数为0·97，其置信水平达到99%以上。
In this paper a "compact least square method" is presented to overcome the ill-conditioned coefficient matrices in the linear regression models.
本文提出一种克服线性回归模型系数矩阵病态的“紧致最小二乘估计”。
By using logarithmic and exponential regression analysis method we obtained the regressive coefficient.
对实验数据进行回归分析，得出了回归系数。
This paper analyzes the factors affecting the controlling precision of sand compactibility system and sets up the dynamic model of regression coefficient between sand compactibility and water content.
分析了影响型砂紧实率控制精度的因素，建立了型砂紧实率-水分回归系数的动态模型。
This paper use experimental data to set up linear regression equation with unitary and regression straight line, to use variance analysis and related coefficient to test validity of equation.
本文利用实验数据建立一元线性回归方程；回归直线，并用方差分析法和相关系数法检验方程的有效性。
By means of regression analysis of the wind tunnel test data from 50 model ships, a new method for calculating the wind coefficient of ships has been obtained.
通过对50条船模风压系数的风洞试验数据进行回归分析，得出一种由船型数据来估算风压系数的新方法。
The calculated exemplum by using this model indicates that experimental regression constant in the diffusion coefficient equation varies with the flow velocity of fluid and ranges from 0.014 to 0.020.
研究结果表明，颗粒扩散系数方程中的实验回归系数应考虑成流速的函数，取值范围为0.014～0。 020；
The regression model based on 45 years data (1951-1995) with the two parameters has a multiple correlation coefficient of 0. 66.
用1951- 1995年的45年资料建立的二因子回归预报模型的复相关系数可达到0.66。
The correlation coefficient of this model was 0.66, which passed the validation of regression equation and regression coefficients.
模型的相关系数为0.66，通过了回归方程和回归系数的检验。
It is found that the more the variance explained by the linear model, the smaller the standard deviation of regression coefficient.
拟合方差与回归系数标准偏差存在明显的相关关系。线性模型能解释的方差越大，回归系数标准偏差越小。
In this paper, the estimation of the direction of the regression coefficient of general regression model is considered.
本文考虑一般回归模型中回归系数的方向的估计问题。
The coefficient variables between medical organization and personal income came into the regression equation were 0.348 and 0.208 respectively.
逐步回归分析中医疗机构类别和个人月收入进入回归方程，其相关系数分别是0.348及0.208。
The correlation between temperature and electricity load is studied by correlation coefficient, scatter plot and regression analysis.
利用相关系数、散点图、回归分析法研究了温度与负荷的关联性。
At the same time, the regression equations to acquiring, confidence coefficient are given.
给出了求取置信系数的回归方程。
By using LINGO software, coefficients can be estimated for linear least absolute deviations regression quickly and accurately, making it an effective approach to coefficient estimation.
利用LINGO软件能够快速、准确地估计出最小一乘线性回归的参数，从而使其成为一种有效的参数估计方法。
Regression coefficient between sensor and densimeter is 0.997, The sensor response remained stable for at least 8 days.
传感器与糖度计法测定的相关系数为0.997。传感器至少可以稳定使用8天以上。
Under given conditions, the some regression forecasting models of containing feign mistake regression coefficient, exactly correspond to the objective law of the target of study.
含佯谬回归系数的回归模型未必都不科学，在某些特定条件下，有些含佯谬系数的回归预测模型可科学合理地反映研究对象的客观变化规律。
Moreover, the regression between the similarity coefficient and the space distance showed that there was no significant correlation between them.
对居群间的相似性系数和空间距离进行回归分析，表明二者之间不存在显著相关性。
Moreover, the regression between the similarity coefficient and the space distance showed that there was no significant correlation between them.
对居群间的相似性系数和空间距离进行回归分析，表明二者之间不存在显著相关性。
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