| 1. | If the assumption fails , we say the model exhibits heteroskedasticity
如果这个假定不成立，我们说模型存在异方差性。 |
| 2. | Approximate power of heteroscedasticity test in nonlinear models with arima errors
误差的非线性回归异方差检验的渐近功效 |
| 3. | " for methods of analyzing economic time series with time - varying volatility arch
所发明的“自动递减条件下的异方差性” |
| 4. | Thus , it constituted from return to return the condition difference square number model
这样就构成了自回归条件异方差模型。 |
| 5. | Using different methods to cope with heteroscedasticity may result in different models
对异方差不同的处理方法，可能得出不同的模型。 |
| 6. | The model which has such kind of property is referred to as heteroscedastic regression model
扰动项具有异方差性的模型称为异方差模型。 |
| 7. | Investigation of the first order and the second order stationarity conditions of hmtd model
异方差混合转移分布模型一阶与二阶平稳条件的探讨 |
| 8. | In the third part , the article mainly gives the methods to deal with the heteroscedasticity in different conditions
本文在第三节中，主要讨论异方差的处理方法。 |
| 9. | ( 3 ) a real - time speaker identification system that introduces acoustic classification information into a heteroscedastic pnn model is proposed
( 3 )提出了一种基于声学分类的并行异方差pnn的实时说话人辨认系统。 |
| 10. | Reason no . 1 : we may prefer to report the usual ols standard errors and test statistics unless there is evidence of heteroskedasticity
理由1 ：除非有证据显示异方差存在，我们仍会偏好于常规ols的标准差及检验统计量。 |
