Using it as standard, the paper conducts elasticity analysis on the relationship of market exchange rate deviation and current account from 1992 to 2003.
以定价汇率及其预测为标准，对1992 ~ 2003年的人民币汇率偏离与经常性项目的关系，进行了弹性分析。
The different treatments of the standard sample and sample for detecting will lead to the deviation of analysis result. So the main measures to improve sample representation is to decrease bad sample.
标样和试样处理的差异使分析结果产生偏差，造成碳含量异常的主要原因是试样不良，因此减少试样不良是提高试样代表性的主要措施。
Considering the flaw of history simulation method, the paper adopts kernel estimation method to estimate parameters and their standard deviation, and then gives case analysis.
考虑到传统的历史模拟方法存在的缺点，采用基于核估计的历史模拟方法获得估计值及其置信区间，并用实例进行了分析。
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