细胞生物学家大卫·沃克斯表示,人们期望专业科学家知道如何分析数据,但令人担忧的是,在已发表的研究报告中,统计误差非常普遍。
Professional scientists are expected to know how to analyze data, but statistical errors are alarmingly common in published research, according to David Vaux, a cell biologist.
通过包含更多条件来减少统计误差。
统计工作与统计误差总是相伴相随。
Statistical errors always occur accompanying statistics work.
各向异性系数的准确度主要取决于探测器计数的统计误差。
The accuracy of anisotropic coefficient mainly depends on the statistical error of the counting.
先建立包含统计误差的观测值数学模型,再进行参数估值。
A mathematical model of the observations that includes statistical errors are used and applied for Parameters estimation, Advantages of statistical model method are discussed.
对于许多的应用来说,单凭这种简单的观念就可以充分地估定统计误差。
For many applications these simple ideas alone lead to a sufficient appraisal of the statistical error.
量子测量中精度的标准极限,源于与可计数离散粒子,而不是连续量相关的统计误差。
The standard limit on the precision with which a quantum measurement can be carried out is due to the statistical error associated with counting discrete particles rather than continuous quantities.
其次对统计误差、资本外逃、热钱内流对净误差与遗漏的影响进行了分析,找出了它们之间的联系。
Secondly, the paper analyzes the influences of statistical error, capital flight and hot money inflow on net errors and omissions and finds out their interrelations.
当被告知征税将导致他们喝啤酒的价格也上升时,该支持率也没有下降。甚至稍有上升,尽管增长幅度仍在统计误差范围之内。
That number does not fall when people are reminded that they will end up paying more for their own beer; indeed it rises slightly, though the increase is still within the statistical margin of error.
针对强起伏区面积统计误差,提出一种地形强烈起伏区的面积统计误差的改进方法,并扼要说明它们的一些应用领域。
Aiming at the error in intense hypsography terrain area statistic, the paper puts forward an improved statistic method for intense hypsography terrain, and introduces their application fields.
在选择数据的访问路径时,如果没有正确的列分布统计数据,DB 2可能没有足够的信息来做出最佳的选择,尤其是如果数据出现严重误差。
Without correct column distribution statistics, DB2 may not have enough information to make the best choice when choosing an access path to the data-especially if data is heavily skewed.
许多医疗业者开始借用其他产业的专业统计工具,例如六个标准差,已经在「通用」等公司行之多年,有效减少生产制造的误差。
Many health providers now employ statistical tools like Six Sigma, long used by firms like GE to reduce variability in manufacturing, and other methods borrowed from industry.
这已经是一个较好的值,因为它可以保证优化器在使用分位数统计信息的情况下对确定过滤因子的估计误差最大只有5%。
This is already a good value because it guarantees that the optimizer, by using the quantile statistics, only has an estimated maximum error of 5% for the determined filter factors.
根据已有的分位数统计信息计算出来的过滤因子不是很精确,但即使只收集20个值,其误差仍然低于5%。
The filter factors calculated based on the available quantile statistics are not exact, but the estimate error is below 5%, even when only 20 values are collected.
为了避免误差,统计人员们只收集那些未被捆绑销售的商品价格。
To avoid tricky judgments, number-crunchers collect the prices only of unbundled goods.
对活塞环仿形车削误差的统计分析表明:靠模仿形加工中存在系统误差。
The Statistical analysis of piston ring tracer cutting errors shows that there is a systematic error in the tracer cutting.
统计推断中异常数据的存在,导致推断结果存在较大误差。
The existence of abnormal data in the statistical inference leads to a larger error in the corollary result.
由于系统方程是时变的,在测量过程中,系统噪声和观测噪声的统计特性等很难精确地估计或测定,事实上很多误差模型都不能简单的设为白噪声。
Because the system equation is changed with time, during the measurement, the statistic character of the system noise and the observation noise cannot be estimated or be determined accurately.
在建立回波抵消器模型的基础上,按最小均方误差准则,导出了自适应滤波器抽头的统计梯度算法和抽头调节的收敛公式。
Based on building up a model of echo canceller, the convergence of gradient-type stochastic adjustment algorithm of an adaptive filter under the mean-squared error criterion is discussed.
从现代数理统计的角度,对这种随机误差的影响进行较深入的分析,得出了有益的结论。
This paper makes thorough analyses for the effects of the random errors with modern statistics and achieves useful conclusions.
运用数理统计学的误差传递公式,推导出了钢梁截面抗弯承载力统计参数的计算公式。
The calculation formula of flexural load capacity of steel beams is obtained by using the error transfer formula of mathematical statistics.
并在明确测量误差分布的前提下,以统计控制的方式对实验室能力验证方法进行了比较详细的论述。
The paper discusses the selection and measurement analysis of transfer standard for power meter as well as the calculation analysis of the data with inter-laboratory comparison and ability statistics.
运用数理统计学的误差传递公式,推导出了组合梁截面抗弯承载力统计参数的计算公式(以第一类截面为例)。
Take the first cross section as an example, and the calculation formula of flexural capacity of composite beams is obtained by using the error transfer formula of mathematical statistics.
该方法解决了以往单纯依靠人工统计存在的误差大及费工费时的问题。
The problems of big error, labourconsume and timeconsume by artificial statistic before are solved by this method.
讨论了带有误差参数的统计缺省理论。
The theory of statistical default logic with error parameters is discussed.
作者提出了用虚拟时变噪声统计,补偿线性化模型误差的新思想。
A new approach of compensating linearized model errors by the fictitious time-varying noise statistics is proposed.
它能够在线估计虚拟观测噪声的统计特性,从而克服了观测模型线性化误差带来的不良影响。
Owing to estimating the statistics of virtual noise on line, it overcomes the bad affect caused by linearization of nonlinear observation model.
它能够在线估计虚拟系统噪声的统计特性,从而消除了动态模型线性化误差带来的不良影响。
Owing to estimate the statistics of virtual noise on line, it overcomes the bad affect caused by linearization of nonlinear dynamic model.
它能够在线估计虚拟系统噪声的统计特性,从而消除了动态模型线性化误差带来的不良影响。
Owing to estimate the statistics of virtual noise on line, it overcomes the bad affect caused by linearization of nonlinear dynamic model.
应用推荐