查询词典 sample covariance

Based on our reduction of the ASCA observational data and fittings of the low and medium energy X-ray spectra, we combine the ASCA and BeppoSAX observed PG QSOs to form a sample for statistics of the spectral features on the X-ray spectra.

从处理ASCA观测数据和分析X射线谱出发，将有ASCA和BeppoSAX观测结果的PG类星体构成一个样本，对它们的中、低能X射线谱上的观测特征进行统计。

Sorting Data Islands by clicking on the - This sample demonstrates how to use behaviors to Sort(ascending/descending) a table by clicking on the column header.

这个例子演示了如何使用 behaviors 通过点击表格的列标题来对表格进行排序。

For intubated patients, an endotracheal aspirate sample should be obtained.

对于气管插管病人，需要将气管内吸出物做病原学培养。

A water sample can be regarded as an assemblage of protons.

一份水的标本可以看作是质子的集群。

This paper chooses residual income model to measure the cost of equity capital, and construct some index to represent the total disclosure quality and earnings disclosure quality of Chinese listed companies. Our analysis shows that for the whole sample of listed companies which conduct seasoned equity offerings in the stock market, controlling 6, company scale, B/M, leverage and asset turnover, there is positive relationship between the total disclosure quality and marginal cost equity capital; there is negative relationship between the earnings radical and marginal cost equity capita; there is no remarkable relationship between the earnings smoothness and marginal cost equity capital.

本文采用剩余收益模型计算公司的股权融资成本，分别以披露总体质量和盈余披露质量作为反映我国上市公司信息披露质量的指标，研究发现在控制β系数、公司规模、账面价值比、盈利水平等因素的条件下，总体来看，信息披露总体质量越高的样本公司的边际股权融资成本越高；盈余激进度与边际股权融资成本负相关；而盈余平滑度与边际股权融资成本的关系并不显著。

Then the listed companies having the corrections of accounting errors in the period from 1999 to 2004 were collected as research sample. Then the incidence which spurred the listed companies adjust errors in time was testified by methods of mean value test and multivariate linear regression. The major empirical results are summarized below: the inspection of The China Securities Regulatory Commission, other supervision outside and income quality correlated positively with it. The effect on profits correlated negatively with it. The hypothesis of the CPA firm change and assets-liabilities ratio didn't correlate with it.

然后选取了1999-2004年披露了会计差错更正的深沪上市公司作为研究样本，运用均值检验和Logistic回归方法考察了上市公司立即更正会计差错的动因，实证研究结果表明：证监会的检查、其他外部监管、收益质量与会计差错的立即更正正相关，损益影响程度与会计差错立即更正负相关，而事务所的变更假设和资产负债率假设未能通过显著性检验。

The associated sample form demonstrates how to use the plain text box as a multi-column report viewer.

附带的样式表格演示了如何使用纯文本块作为一个多柱状报告的浏览器。

We are not willing to accept your commodities which is not assort with the sample.

我公司不愿接受与你们的样品不符的货物。

Sample sent to Astra then to customer the green paint rubs and run off very easily.

寄到Astra的并随后交给客户的样品上的绿漆很容易被擦掉。

Some small sam-ple and large sample superiority of this estimate such as the unbiasedness,convergence,asymptotic normality and the property of simulation,are obtained.

我们得到分块拟回归的小样本和大样本性质，如无偏性、均方收敛性、强收敛性和渐近正态性，并讨论了曲线拟合的性质。

Diabetes is a social disease that affects several million people worldwide.

糖尿病是一个社会性疾病，全世界有数百万人罹患此病。

I'll call you on Friday to see if we can reschedule our luncheon meeting at your convenience.

我星期五会给您打电话在您方便的时候我们重新安排我们的午餐约会。