Heteroscedasticity

异方差

常用释义

n. [数] 异方差性

扩展信息

异方差性

异方差性（heteroscedasticity ）是相对于同方差而言的。所谓同方差，是为了保证回归参数估计量具有良好的统计性质，经典 …

方差不齐

现代统计学与SAS应用——中英文对照词汇表... ... 方差 variance 方差不齐 heteroscedasticity 方差齐性 homogeneity of varianc…

变异数不齐一性

变异数不齐一性 (Heteroscedasticity)When the requirement of a constant variance isviolated we have heteroscedasticity.+ + ++…

异质性

在统计中，这称为变异数的异质性（heteroscedasticity）。由於公式1.2.1 中因变数的特殊性质，线性机率模型（LPM）的估 …

异质变异

...d)。由於本研究资料引用横断面数据，一般都预期有异质变异(heteroscedasticity)，联立方程式间 2 该三式所选取解释变数的 …

差变异数具有歧异性

散性（homoscedasticity），若拒绝须无假设则残差变异数具有歧异性（heteroscedasticity）。

异质变异数

b. 异质变异数(Heteroscedasticity)的问题异质变异数的存在，常常发生於横断面资料上(cross-sectional data)。而其对传统最 …

例句

Due to the excellent properties of showing heteroscedasticity, Panel Data models have been greatly used in economics.

由于能体现异质性等一系列优良性质，面板数据模型正被广泛应用到经济学各个领域中。

The autoregressive conditional heteroscedasticity (ARCH) model and cointegration theory of the non-classical econometrics are reviewed. 3.

对非经典计量经济学中的条件异方差模型和协整理论作了较为完整的综述。

The present normal heteroscedasticity testing means are parameter means, and they call for a certain distribution of the parameter.

异方差现有常规检验方法的大多是参数检验的方法，需要参数服从一定的分布。

The generalized autoregressive conditional heteroscedasticity (GARCH) model has the ability to describe the volatility of time series.

广义自回归条件异方差（GARCH）模型具有描述时间序列波动性的能力。

The conditional heteroscedasticity is a typical characteristic of finance time series.

条件异方差是金融时间序列变量的一个典型特征。

Under this circumstance, Engle brings forward the autoregressive conditional heteroscedasticity model(ARCH) in 1982.

在这种情况下，恩格尔于1982年提出了自回归条件异方差模型，简称ARCH模型。

The LLLS method has heteroscedasticity and it does not satisfy the basic hypothesis of standard linear regression.

LLLS法具有异方差性，不满足标准线性回归的基本假设。

Based on the LR statistic and Score statistic, we obtain a test for heteroscedasticity in nonlinear proper dispersion models.

基于似然比统计量和得分统计量，得到变离差的检验。

Modeling risk using nonparametric generalized transformed heteroscedasticity models

非参数的广义转换异方差模型

Estimated Theory of Semiparametric Regression Model With Heteroscedasticity

一类异方差半参回归模型的估计理论

The Persistence of Autoregressive Conditional Heteroscedasticity

自回归条件异方差的持续性研究

Runs Test Used for Heteroscedasticity

异方差的游程检验

Parameter Estimation of a Heteroscedasticity Model for Clinical Trials

有依从性观测的临床试验模型的参数估计

Testing Heteroscedasticity by Wavelets in a Nonparametric Regression Model with Random Design

带有随机设计的非参数回归模型的异方差小波检验

Heteroscedasticity examination comparison and revision

异方差的检验比较和修正

then, through the auto-correlation and heteroscedasticity testing, analyze the OLS model defect in this application;

其后，通过对序列自相关及异方差检验，分析出该模型在此应用中的缺陷；

Statistical Analysis of Heteroscedasticity in Nonlinear Regression Models with Random Weight Function

随机权函数非线性回归模型的异方差统计分析

Statistical Analysis of Heteroscedasticity in Semiparametric Models

半参数回归模型的异方差统计分析

The serial data of the return in Shanghai stock market have obvious heteroscedasticity phenomena;

上海股票市场收益率序列的波动具有显著的异方差性；

Score Tests of Heteroscedasticity in Nonlinear Regression Models with Random Coefficients

加权非线性随机系数模型异方差性的Score检验

Wavelet Estimator for Heteroscedasticity in Nonparametric Model

不等方差情形下非参数回归模型的小波估计

Heteroscedasticity Regression Analysis for Censored Data

截尾数据异方差回归分析

The Statistical Inferences of Non-simpleness Sample With Heteroscedasticity

异方差非简单样本的统计推断

Comparing Several Testing Methods of Heteroscedasticity

几种异方差检验方法的比较

Research on the Auto Regressive Conditional Heteroscedasticity Model

自回归条件异方差模型的研究分析

Testing for Heteroscedasticity in Semiparametric Random Effect Model

半参数随机效应模型的异方差检验

The Treatment of Heteroscedasticity and Serial Correlation in Econometric Models

计量经济模型中的异方差和序列相关问题

Testing for Phased Heteroscedasticity in Nonlinear Models With Structural Change

具有结构变化的非线性回归模型的阶段异方差检验

One Kind of Heteroscedasticity Testing Method on the Error Term in Econometric Modeling

计量经济模型中扰动项异方差性的一种检验方法

Diagnosis Method of Heteroscedasticity Testing and Analysis of Data Essence Influence

异方差性的诊断方法及数据属性影响的实证分析