A Monte Carlo Study of Some Tests of Model Adequacy in Time Series Analysis
时间序列模型适切性检验的蒙特卡洛研究AI 解读 ↓
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时间序列模型适切性检验的蒙特卡洛研究AI 解读 ↓
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In this article, we conduct a Monte Carlo experiment of several computationally attractive tests of model adequacy in time series analysis. The experiment is designed to examine the small-sample properties of tests of fitted autoregressive and moving average models, to compare the performances of asymptotically equivalent procedures, to consider the effects on estimated significance levels and powers of testing against both appropriate and inappropriate alternatives, to evaluate the effects on power of progressively (and unnecessarily) overfitting a model, and to examine the robustness of the tests to departures from normality.