In local chemical exploration, the variance analysis of three-stage-model must be applied to estimate analytical uncertainly and sample-collecting error.

在区域化探中必须应用三层套合方差分析对样品的采样误差和分析误差进行统计分析。

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At first, we analyze sample index funds' historical risk levels as well as their risk structure by means of decomposition of tracking error variance.

首先，对样本指数基金的跟踪误差方差进行分解，分析其历史风险水平；然后，引入压力测试，预测样本指数基金未来的风险水平。

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