分位数

We discuss asymptotically best linear unbiased estimators of the Logistic population based on selected order statistics and give the formula of computing the ABLUE, the variance and the covariance of the ABLUE in limit, and properties of the ABLUE, and so on. We give the optimum chosen of spacing which is the ABLUE with maximum asymptotic relative efficiency based on complete sample when selected order statistics number is less than 10, and obtain its maximum asymptotic relative efficiency.

讨论基于Logistic总体Ⅱ型截尾样本的若干个样本分位数的总体分布参数的近似最佳线性无偏估计；给出了该近似最佳线性无偏估计的计算公式，估计方差与协方差的极限表达式及估计量的大样本性质等；给出了全样本，样本分位点个数固定，但不超过10情形下，使上述近似最佳线性无偏估计有最大相对联合估计效率时，样本分位数选取法及最大相对联合估计效率；为大样本情形下，该近似最佳线性无偏估计的应用提供了理论依据。

So, we discuss the asymptotically best linear unbiased estimator for the logistic population based on the selected order statistics, give the pr.

为缓解这一困难，本文讨论利用样本分位数的Logistic总体的近似最佳线性无偏估计，给出估计量的大样本性质，以及样本分位数不超过10情形下，估计量有渐近最大相对估计效率时样本分位数的选取方案等。

Especially, by an example for analysis of the authoritical boston housing prices data, we emphasize on applying an new regression model and method -- semiparametric functional coefficient quantile regression and two-step estimation method to show the great explaination of the new

介绍了非参数回归和半参数回归的发展历程及其估计方法，还介绍了分位数回归的相关理论及其研究现况。在半参数、变系数回归和分位数回归的基础上，进一步讨论了非参数和半参数的变系数分位数回归模型和局部多项式线性估计法。

Compared with the first and second quartile, the osteoporosis prevalence and risk were significantly increased in the women of the third and fourth quartile, and the fourth quartile had a significant higher prevalence and risk than the third quartile, especially in spine.

与一分位数和三分位数比较，四分位数的妇女骨质疏松症患病率和患病风险显著增加；与三分位数比较，处于四分位数的妇女骨质疏松症患病率和患病风险也显著增加，特别是在腰椎。

In adjusted models, NRG-1β was independently associated with an increased risk of death or cardiac transplantation over a median follow-up of 2.4 years (adjusted hazard ratio, 1.58; 95% confidence interval, 1.04 to 2.39; P=0.03 comparing fourth versus first NRG-1β quartile).

在校正的模型中，NRG-1β与死亡风险增加或心脏移植独立相关（平均随访2.4年，NRG-1β第四分位数与第一分位数相比，校正的风险比为1.58；95% CI，1.04~2.39；P=0.03）。

The ICU mortality was 13.2% and hospital mortality 26%. Median serum VEGF concentrations on day 0 were 423 pg/mL (interquartile range 159 and 858 pg/mL), and after 72 h were 521 pg/mL (IQR 182 and 1092 pg/mL), which were both higher than in healthy controls (P = 0.029 and 0.003, respectively).

我们获得在 ICU 内的死亡率为13.2%，院内死亡率为26%；并测得在第0天时的血清 VEGF 的中值为423 pg/mL (其四分位数区间为 159－858 pg/mL)，而在72h 时的血清 VEGF 的中值为521 pg/mL (其四分位数区间为 182－1092pg/mL)，而两者均高於健康对照组(P 值分别为0.029和0.003)。

RESULTS: Melatonin significantly reduced the anxiety scores from 5, 3.5-6 to 3, 2-3 after premedication and to 3, 2-3.5 during surgery (P = 0.04 and P = 0.005 compared with the placebo group, respectively).

结果：褪黑素显著降低焦虑评分。给药前中位数及四分位数间距为5， 3.5-6。给药后中位数及四分位数间距为3， 2-3，术中为3， 2-3.5(P=0.04并且和分别和对照组相比 P=0.005)。

Results Under the condition of the conjugate prior distribution, the prior parameters computed by three methods were similar.

结果在共轭先验分布的条件下，先验矩、分位数、众数与分位数三种方法确定的先验分布参数结果一致。

The prevalence of adverse outcomes varied sixfold from 12%(95% CI 7.2–17) in the lowest to 79%(60–91) in the highest quintile of A1C exposure.

不良妊娠结局的发生从在A1C最低五分位数的12％（95％，CI7.2－17）到A1C最高五分位数的79%(60–91)，差异达6倍之多。

Rough error processing that frequently used to digital filtering was taken as the research object,on the basis of difference method commonly used in the past and profile method of fractile method,a synthesis algorithm-fractile method based on difference method was proposed.The algorithm for processing the rough error data was perfected .The method had been used in a detection system and result is satisfactory.

对数字滤波系统中经常使用的数据处理算法做了综合处理，对于数据采集过程中所得数据做粗差判断处理为主要研究对象，在过去常用的差分法和分位数分布图法的基础上提出了一种综合处理方法-基于差分法的分位数方法，对系统中的粗差数据处理算法做了更完善的探讨，该方法已在实际检测系统中应用，效果显著。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。