因为为回归功能的有效推理要求 heteroscedasticity 应该被考虑,在回归分析检测 heteroscedasticity 的重要性广泛地被认出。在这篇论文,为 heteroscedasticity 的简单测试基于剩余分析在非参量的回归被建议。而且,有有 Dette 和 Munk 的比较的一些模拟是方法被进行评估建议测试的表演。结果证明在这篇论文的方法相当令人满意地表现并且在一些情况中是比 Dette 和 Munk 的方法更强大的。
The importance of detecting heteroscedasticity in regression analysis is widely recognized because efficient inference for the regression function requires that heteroscedasticity should be taken into account. In this paper, a simple test for heteroscedasticity is proposed in nonparametric regression based on residual analysis. Furthermore, some simulations with a comparison with Dette and Munk's method are conducted to evaluate the performance of the proposed test. The results demonstrate that the method in this paper performs quite satisfactorily and is much more powerful than Dette and Munk's method in some cases.