在第5节，我们用偏序集拟阵的余秩函数来研究偏序集拟阵与其对偶之间的关系。

In Section 5, we use the corank function of poset matroids to investigate the relationship between a poset matroid and its dual.

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本文用凸函数构造了线性次序统计量和线性秩统计量，并证明了它们的渐近正态性。

In this paper, we use the convex function to form the order statistic and the linear rank statistic, and the asymptotic normality of the statistics are proved.

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线性回归模型的误差项不服从正态分布或存在多个离群点时，可以将残差秩次的某些函数作为权重引入估计模型来减少离群点的不良影响。

When multiple outliers occur in linear regression model or the distribution of residuals is not normal, we can use residuals rank as weight function to get some resist estimator.

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