回归系数

Taken Qinshui Basin as an example a predictive model of gas content is established by multiple stepwise regression analysis, using Langmuir volume and gas saturation as its parameters. The result of multiple correlation coefficient testing, F-testing and t-testing indicates that the model meets the hypothesis testing of linearity and its matching effect is preferable.

以沁水盆地为例，运用多元逐步回归分析方法，建立了以Langmuir体积和含气饱和度为参数的含气量预测模型；复相关系数、F检验、t检验结果表明，该模型满足线性与方差齐性的假设，拟合效果较好。

A important result is the one-order expression of AR Yt = DYt-1 + E, from paralleling a high-order differential equation transformation into a one-order differential equation system, the one-order expression exposes that the AR is only a certain more-multivariable power series processAnd, if a process is described as an AR, the sufficient and necessary condition is the spectrum norm A of the coefficient matrix D less than one.

作者用高阶微分方程化一阶微分方程组的方法，获得多元弱平稳序列p阶自回归模型的一步滑动平均表达式，证明了AR的是一个更高维的幂级数的线性过程，从而，说明了AR关于序列依概率成立的充要条件是：该模型更高维的幂级数的线性过程的表达式中系数矩阵D的谱范数λ＜1。

The basical ideas, arithmatic methods and applied conditions of reduction of partial least squares and discrete wavelet transformation, logitboost, random forests and fuzzy kendal discriminate analysis of microarray gene expression data, ordinal discriminate analysis of time series multivariate data and varied-coefficient-logistic-regression-model discriminate analysis of the data with varied regular pattern in itself.

本文对医学领域中判别分析方法的新进展做一综述，介绍了微阵列基因表达数据判别分析中偏最小二乘法降维、离散小波变换法降维、logitboost算法、随机森林、模糊核判别分析以及时间序列多元数据有序判别分析法、自身有变化规律数据的变系数logistic回归模型判别分析法的基本思想、算法和适用条件。

The regression analysis of the hydrodynamic data with the 24 orthogonal series of JDYW models in open water has been carried out, and the estimated formulae of C subscript N(subscript α and C as coefficient of center of pressure are provided, which can be used to design rudder or fin in the vehicle.

JDYW是一种高性能对称翼型，文中对24个正交系列模型敞水流体动力测试数据作了回归分析，给出了C下标 N(下标α和压力中心系数C的估算公式，可供船舵或鳍设计时使用。

The spearman correlation coefficient was 0.308 (P＜0.01) between serum proinsulin and risk factors score, and the partial correlation coefficient was 0.2095 (P＜0.01) after adjustment for age, sex, body mass index and waist circumference. The results of non-conditional univariate Logistic regression and multivariate stepwise Logistic regression indicated that serum proinsulin level associated with cardiovascular risk factors aggregation, and the odds ratio (95％ CI) was 1.656 (1.483～1.851), 1.652 (1.475～1.850)(p＜0.01) respectively.

Spearman相关分析及调整年龄、性别、体重指数与腰围后的偏相关分析结果显示，胰岛素原水平与危险因素评分的相关系数分别为0.308与0.2095(P值均为0.000)；单因素及多因素Logistic回归分析显示，胰岛素原的水平与心血管危险因素聚集显著相关，其OR值(95％可信区间)分别为1.656(1.483～1.851)、1.652(1.475～1.850)(p＜0.01)。

Digital planimetry method ; ImageJ-ij133-jdk15; Transparency tracing method ; Diabetic cutaneous ulcer ; Wound measurement ; Multiple l inear regression ; Intraclass correlation coefficients

数码相机拍摄法； Image J 医学图像分析软件；无菌薄膜勾边法；糖尿病皮肤溃疡；创伤面积测量；多元线性回归；组内相关系数

The polynomial model is compared with the power function model.

并与切削力系数的幂函数回归模型进行了比较分析。

For optimization parameters in structure and motion,the experimental method for the five-factor quadratics rotary orthogonal combination was adopted,and two evaluation indexes(mixing homogeneity and material powder) were applied in the experiment.

为了优化其结构与运动参数，采用二次回归正交旋转组合试验设计对5个试验因素进行了混合均匀度及物料细粉率作为指标的试验研究，得出了其结构与运动参数的合理组合，即揉搓转子转速宜取40~50 r/m in、剪切转子转速宜取55~65 r/m in，转子间隙宜取11~13 mm，齿杆角度宜取5~°10，°混合时间宜小于10 m in，充满系数不应小于0.1。

Table 3 The regression equation , correlation coefficient ,and increased percentage of 30 soybean cultivars with years of released

表3 30个大豆品种随育成年代演替某些农艺性状的回归方程，相关系数及增长的百分率

At the same time the regression model of conversion coefficient is given using different meteorological factors.

利用1957-2001年全国472个测站小型蒸发器的实测资料及水面蒸发量的理论计算值，对比分析了两者折算系数的分布规律及45a来的年际变化，，同时利用各气象要素建立了回归模型。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。