曲线回归

一些带常数项的曲线回归方程的线性化变换及参数估计

Linearizing Transformation and Parameter Estimation of Some Curvilinear Regression Equations Each with a Constant Term

在研究方法上，本文分别采用了分段线性回归、曲线回归和两阶段最小二乘法。

On methodology , this paper uses piece-wise linear regression , curvilinear regression and 2-stage OLS regression .

二次曲线回归拟合计算生物利用度参数tpcp值

Parameter s of bioavailability , t ( p ) and c ( p ), calculated by regression of a conic fitting

模糊加权线性回归模型及其在S-N曲线回归分析中的应用研究

A study on linear regression model with fuzzy weight and its application to S-N curve in its regression analysis

方法以两种水蒸汽蒸馏工艺提取含挥发油药材，紫外分光光度仪测蒸馏液中挥发油的含量，采用Exponential曲线回归分析法建立挥发油馏出规律的数学模型。

Methods Two steam distillation processes were carried out to extract the volatile oil from three Chinese herbs . UV-spectrophotometry method was used to determine the oil content in the distillate , and the mathematical model was established according to volatile oil distillation process by exponential curve regression analysis .

3运动终点和运动终止后1分时，直线回归和曲线回归均与运动前有显著性差异，由回归方程求出的心率在60次/分时的QT间期与QTc值不同。

At the peak of exercise and the first minute in the recovery phase of exercise test , the liner regression line and the logarithmic regression line were different from those lines before exercise . The QT interval at 60 bpm predictive by the regression equation was different from QTc .

计算离晶状体前表面中心点不同距离处的平均曲率半径并和离中心点的距离做曲线回归，计算晶状体表面非对称性指数（LSAI）。

Curve regressions were done to determine the correlations of the distances with the lens surface center and the average radii of curvature at the same distances . Lens surface asymmetric indexes ( LSAI ) were calculated as well .

用于定量分析中确定标准曲线回归方程的微机程序设计

Microcomputer programming of regression equation deciding standard curve applied in quantitative analysis

曲线回归拟合适度检验法的简化

Simplified Method of Significant Test for Compatibility of Curve Fitting

疟疾发病率变化的非线性过程与曲线回归分析比较

The difference between non-linear regression and curve fitting analysis on incidence of malaria

利用曲线回归方程估计石英晶体元件的长期频率老化率

Estimated the long-term frequency aging rate of quartz crystal element by curvilinear equation

基于逐段曲线回归分析的息票剥离法的研究及应用

Studies and Application of Bootstrap Based on Stagewise Regression

荒漠草原区的估产模型是S曲线回归模型；

S Regression Model is suitable for desert steppe ;

弯曲木中心曲线回归函数方程的数控加工方法

Numerical Control Machining Methods of Center Curve Regressive Function Equation of Flexural Wood

剃齿试验及齿形误差曲线回归分析

Experiment of Shaving and Regression Analysis of Tooth Error

曲线回归的拟合优度指标的探讨

Approach on the Fitting Optimization Index of Curve Regression

多曲线回归方法及计算机应用

Regression Method of Multiple Curves and Computer Application

随着曲线回归正常水平，这一拖累应会在明年消失。

With curves now back to normal , this drag should disappear in 2011 .

荒漠草原区S曲线回归模型的估产精度达到97%；

The estimating accuracy of S regression model is 97 % to desert steppe .

蒸汽轮机工程曲线回归的神经网络方法及其应用

The Method of BP Nerve Network for Returning Curves of Steam Turbine and Its Application

曲线回归参数估计的改进与回归预测模型的校正

The improvement of parameter estimation of curve regression and the rectification of regression forecasting model

广义曲线回归的小波估计

Wavelet Estimation of Generalized Curve Regression

多种曲线回归模拟表明：发芽势增加高度符合三次曲线。

By means of regression simulation of nine curves , germinating potential coincided with three times curves .

一个曲线回归模型

A Regression Model of curve

在此基础上，得到了多元曲线回归的预测模型，拟合率为100%。

The mathematical model of multivariate curve regression analysis was obtained and the corrective ratio was 100 % .

求出了年降水与鼠密度的曲线回归模型。

The model of curve regression analysis between the yearly rainfall and the population of Meriones unguiculatus is given .

采用曲线回归法、正交试验法和方差分析法等对橡实淀粉的漂白工艺进行了较为详细的研究。

Whereas , by for now , the studies on physicochemical and functional characteristics of acorn starch have not been reported .

结果表明，在稀土硬脂酸盐及同类稳定剂中，曲线回归方程参数有效地反映了热稳定剂类型的差别；

The parameters of the curve regression equation represent the disparity of the thermal stabilizers with the type of rare earth stearates .

结果表明，木材的物理力学性质之间，除个别项目外，均存在着很高的相关性，其相关关系可用直线或曲线回归方程表示；

The results show that the relevance are very high between the physical and mechnical properties of wood except a few items .

离晶状体前表面中心点不同距离处的平均曲率半径与距离的曲线回归显示两者间为3次幂函数关系。

The correlation of curve regression of the distances to the surface center with the radii of curvature revealed the third power function .