Objective: To explore the application of dummy variable in statistical analysis.
目的：探讨哑变量在统计分析中的应用。
We propose a method for proving two matrix identities, which are often used in statistical analysis, based on knowledge of conditional posterior density.
提出了用求条件后验密度的方法证明统计分析中的两个矩阵等式的方法。
Using the approximate formulae established by polynomial with certain accuracy in statistical analysis on computer is more convenient than statistical tables.
在计算机上进行统计计算，采用以多项式表示的具有一定精度的近似公式，要比使用统计表格方便。
The method of linear sliding average in statistical analysis was used to investigate the features of climatic changes in representative areas in Southwest China since the 1940's.
采用直线滑动平均法，统计分析了西南地区各代表点自40年代以来的气候变化特征。
Conclusion The principles and methods for observational studies should be followed to reduce information bias, selection bias and confounding bias in statistical analysis of hospital data.
结论在对医院资料进行统计分析时，应遵循观察性研究的原则和方法，以避免可能存在的信息偏倚、选择偏倚和混杂偏倚。
Conclusion The principles and methods for observational studies should be followed to reduce information bias, selection bias and confounding bias in statistical analysis of hospital data.
结论在对医院资料进行统计分析时，应遵循观察性研究的原则和方法，以避免可能存在的信息偏倚、选择偏倚和混杂偏倚。
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