查询词典 regression analysis

Commonly required capabilities for analysis of variance, analysis of covariance, and regression analysis are closely linked with graphical tools that produce scatter plots, histograms, box-and-whisker plots, and contour plots.

通常所需的方差分析，协方差分析和回归分析的能力是和能够产生散点图，直方图，箱线图，等高线图的图形化工具密切联系在一起的。

A method for the determination of aloin and aloe-emodim in aloe vera was established based on multi-wavelength linear regression spectrophotometry in wavelength range of 350-450nm with a regression equation.

依据芦荟苷与芦荟大黄素的光谱特征，选择350-450nm为测定波长范围，用多波长直线回归分光光度法同时测定芦荟中芦荟苷和芦荟大黄素含量。

Based on "628" regression design and mathematic model, the passage discussed the best fermentative condition of Lactarius deliciosus polysaccharide , established the regression equation model which expressed the relationship among pH, temperature, time, quantity of beef extract, and the inoculation quantity, inorganic salt.

运用向后逐步回归分析法，获得pH值、温度、培养时间、牛肉膏用量、接种量和无机盐用量的最优回归方程，分析了各因子的主效应和互作效应。

In the fifth chapter, we propose the conditional generalized ridge-type estimator of regression coefficient in restricted linear regression model, and prove that it is superior to the restricted best linear unbiased estimator in terms of mean squares error and mean squares error matrix, we also give the choice of parameters matrix K.

第五章给出了约束线性回归模型中回归系数的条件广义岭估计，讨论了它的优良性，证明了它在均方误差及均方误差矩阵下都优于约束最小二乘估计，并给出了参数矩阵K的选择。

For polychlorinated biphenyl, QSRR model was built by principal component regression. A regression model with correlation coefficient of 0.9999 and standard deviation of 2.4636 was obtained.

分别对同一结构特征的分子体系和不同结构特征的分子体系进行了程序升温保留指数与其结构之间的关系研究，并建立相应预测模型。

The result showed that the single correlation between the characters of weight and heart girth, chest width and circumference of cannon bone was significantly different. The correlation between weight and heart girth, chest width, circumference of cannon bone was highly positive correlation. Among seven regression models, the correlation index of six regression models was over 0.7, but that of 60 days was 0.452. The result suggested that selecting body weight was efficient through heart girth, body high, chest width and circumference of cannon bone.

对不同日龄各项体尺与体重建立的了回归方程，结果表明，60日龄回归模型的决定系数R~2=0.452，其它6个回归模型的相关指数均在0.7以上，其中方程1、5、6、7的相关指数都在0.9以上，表明这些回归方程中各项体尺指标与体重之间相关密切，根据胸围、管围、体高和胸宽对体重的选择都是有效的，具有一定的参考作用。

The core of this paper is to analyze and probe into ridge regression from different ideas, such as the existence of ridge parameter K, the choiceness of ridge estimation K , the choice of ridge parameter K and the methods of regression coefficients.

本文简单介绍了主成分回归，阐述了主成分估计方法的原理和优缺点；重点是从不同的角度不同的思想出发，对最常见的岭回归估计法进行了深入的探讨：岭参数K 的存在性，岭估计的优良性，岭参数K 的选择方法等。

Regression and Correlation, coefficient of regression, method least square, coefficient of correlation and determination.

教学目的：通过学习掌握回归关系和相关关系的区别及联系，回归和相关分析的基本原理和方法。

The regression coefficient of any category was divided by the maximum regression coefficient so as to get the score of this category.

将各项指标的回归系数转换为简单分数，相加后得到每一例患者的预后评分。

A regression coefficient of 0.863, indicates a satisfactory regression equation.

回归系数 r 为0.863，说明方程是理想的。

Continuously improve the production mechanism, to provide customers with better quality products and services.

不断的完善生产机制，给客户提供更优质的产品及服务。

B:Yes, he was the very prize-winner in the court tennis ten years ago?

是的，他是十年前的世界网球冠军。