异方差性的英文

heteroscedasticity

heteroskedasticity

• 异:    different
• 性:    nature; character; ...
• 异方差性模型:    heteroscedastic mo ...

例句与用法

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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. " 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”
3. 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。
4. However in most economic phenomena , this kind of hypothesis is not necessary true . sometimes the disturbances vary with the observations . this is called heteroscedasticity
   但在大多数经济现象中，这种假设不一定成立，有时扰动项u _ i的方差随观察值的不同而变化，这就是异方差性。
5. The article analyses whether the theory of emh market can explain some phenomena on capital market . we provide some evidence for the non - normal , non - gaussian distribution , auto - correlation , non - linear and heteroskedasticity character of stock price
   文章就有效市场假说( emh )对现实资本市场的解释能力进行了分析，发现我国股票市场的股价收益率序列具有非正态性、自相关性、非线性、异方差性等特点。