您要查找的是不是：
- dummy variable model 虚拟变量模型
- By using Chinese Household Survey of 2005, this paper adopts the dummy variable and Propensity Score Matching model to estimate wage returns on computer uses. 本文利用2005年全国家庭普查数据，采用虚拟变量和趋势得分模型详细估计了使用个人电脑的工资回报率。
- Results: By using dummy variable,we can broaden the application of regression analysis. 结果:正确使用哑变量,扩大回归模型的应用范围。
- Stock returns and their volatility are analyzed using the GARCH (1, 1) model with game dummy variables. GARCH(1,1)模型配合球赛虚拟变数被应用来分析股市报酬及其变动性。
- In PHP 4, you could not directly dereference objects which are returned from methods. You would have to first assign the object to a dummy variable and then dereference it. 在PHP4中,你不能直接从一个方法中返回的对象中解析,你必须将这个对象注册给一个中间变量,然后解析它。
- A dummy variable. 假变量
- A variable model for the backhoe of WZ30-25 was established and adjusted by using ADAMS software. 利用ADAMS软件中的参数化建模与分析功能，建立并校核WZ30-25挖掘装载机的挖掘工作装置参数化模型。
- Conclusion It is preferable to analyse after transforming categorical variable into dummy variables. 结论将分类变量转化为哑变量分析是比较合理的方法。
- Based on the city data of the past 10 years and the values of exogenous and dummy variables confirmed, the model is applied for forecasting the URT development in Shanghai in the near future. 依据上海市过去10年的数据和确定的外生与虚拟变量值，应用该模型对上海市近期城市轨道交通发展情况进行了实例分析。
- macro dummy variable of definition 宏定义哑变量
- The paper analyzes the driven power and environmental factors impacting the formation of supply chain collaborating relationship,puts forward the model of SC collaborating and environmental relationship and the variable model impacting the collaboration. 从供应链合作关系的界面结构的发展来说明在供应链企业中建立战略合作伙伴关系是供应链合作的必然趋势,同时,分析了影响供应链合作关系形成的驱动力和环境因素,并提出了供应链合作关系与环境关系模型以及影响供应链合作关系的多变量模型。
- Firstly, the nonlinear affine dynamic model was established based on small perturbation variable model, and the design method of nonlinear backstepping control strategy was also discussed. 首先基于小偏差线化模型建立了航空发动机的非线性仿射模型，讨论了非线性反演控制规律的设计方法。
- In order to examines the day of the week effect during the five trading days, we introduce five dummy variables which denote Monday to Friday respectively. 周内效应检验的是周一到周五这五个交易日里收益率的波动情况;为判断其差异是否显著;本文引入虚拟变量(dummy variables).;在弱检验的形式上;本文发现沪深股市在发展过程中均存在一定的周内效应。
- Simulation results show that presented phase variable model has good veracity and can be timesaving.Moreover, it can be applied to analyze the control strategy and restrain cogging torque. 结果表明本文所采用的相变量模型具有很高的准确性和较快的仿真速度，可用于研究控制系统和探讨转矩脉动抑制方法。
- In this paper, a variable model of optimum droplet transfer mode for pulsed GMA welding using a steel electrode is developed on the principle of the micro-interference instability of magnetofluid. 基于磁流体微扰动“失稳”的原理,建立了钢焊丝脉冲GMA焊最佳熔滴过渡形式的参数模型。
- Conclusion: It is easy to understand the analysis of covariance and analysis of variance can also be considered in regression analysis setting by defining appropriate dummy variables. 结论:在协方差分析中使用哑变量使对模型的理解变的简单,在方差分析中使用哑变量使得可以从回归的角度来理解模型。
- Value computation of the Dummy Variable Bessel Function 虚变量Bessel函数的数值计算
- The Application of Dummy Variables to the Linear Regression Model 略谈线性回归模型中虚拟变量的作用
- Gaussian process latent variable model 高斯过程隐变量模型
